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library.c

/* library.c
 *
 * Copyright (C) 2001-2005 Mariusz Woloszyn <emsi@ipartners.pl>
 * Copyright (C) 2003-2005 Marcus Meissner <marcus@jet.franken.de>
 * Copyright (C) 2005 Hubert Figuiere <hfiguiere@teaser.fr>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2 of the License, or (at your option) any later version.
 *
 * This library is distributed in the hope that it will be useful, 
 * but WITHOUT ANY WARRANTY; without even the implied warranty of 
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details. 
 *
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the
 * Free Software Foundation, Inc., 59 Temple Place - Suite 330,
 * Boston, MA 02111-1307, USA.
 */
#include "config.h"

#include <stdlib.h>
#include <string.h>
#include <stdio.h>
#include <time.h>

#include <gphoto2-library.h>
#include <gphoto2-port-log.h>

#define EXPERIMENTAL_CANON_CAPTURE 0


#ifdef ENABLE_NLS
#  include <libintl.h>
#  undef _
#  define _(String) dgettext (GETTEXT_PACKAGE, String)
#  ifdef gettext_noop
#    define N_(String) gettext_noop (String)
#  else
#    define N_(String) (String)
#  endif
#else
#  define textdomain(String) (String)
#  define gettext(String) (String)
#  define dgettext(Domain,Message) (Message)
#  define dcgettext(Domain,Message,Type) (Message)
#  define bindtextdomain(Domain,Directory) (Domain)
#  define _(String) (String)
#  define N_(String) (String)
#endif

#include "ptp.h"
#include "ptp-bugs.h"

#define GP_MODULE "PTP2"

#define USB_TIMEOUT 8000
#define USB_TIMEOUT_CAPTURE 20000

#define CPR(context,result) {short r=(result); if (r!=PTP_RC_OK) {report_result ((context), r); return (translate_ptp_result (r));}}

#define CPR_free(context,result, freeptr) {\
                  short r=(result);\
                  if (r!=PTP_RC_OK) {\
                        report_result ((context), r);\
                        free(freeptr);\
                        return (translate_ptp_result (r));\
                  }\
}

#define CR(result) {int r=(result);if(r<0) return (r);}
/*
#define CR_free(result, freeptr) {\
                  int r=(result);\
                  if(r<0){\
                        free(freeptr);\
                        return(r);\
                        }\
}
*/
/* below macro makes a copy of fn without leading character ('/'),
 * removes the '/' at the end if present, and calls folder_to_handle()
 * funtion proviging as the first argument the string after the second '/'.
 * for example if fn is '/store_00010001/DCIM/somefolder/', the macro will
 * call folder_to_handle() with 'DCIM/somefolder' as the very first argument.
 * it's used to omit storage pseudofolder and remove trailing '/'
 */

#define find_folder_handle(fn,s,p,d)      {                 \
            {                                   \
            int len=strlen(fn);                       \
            char *backfolder=malloc(len);             \
            char *tmpfolder;                    \
            memcpy(backfolder,fn+1, len);             \
            if (backfolder[len-2]=='/') backfolder[len-2]='\0';\
            if ((tmpfolder=strchr(backfolder+1,'/'))==NULL) tmpfolder="/";\
            p=folder_to_handle(tmpfolder+1,s,0,(Camera *)d);\
            free(backfolder);                   \
            }                                   \
}

#define folder_to_storage(fn,s) {                     \
            {                                   \
            if (!strncmp(fn,"/"STORAGE_FOLDER_PREFIX,strlen(STORAGE_FOLDER_PREFIX)+1))                                        \
            {                                   \
                  if (strlen(fn)<strlen(STORAGE_FOLDER_PREFIX)+8+1) \
                        return (GP_ERROR);            \
                  s = strtoul(fn + strlen(STORAGE_FOLDER_PREFIX)+1, NULL, 16);                                                \
            } else return (GP_ERROR);                 \
            }                                   \
}

typedef int (*getfunc_t)(CameraFilesystem*, const char*, const char *, CameraFileType, CameraFile *, void *, GPContext *);
typedef int (*putfunc_t)(CameraFilesystem*, const char*, CameraFile*, void*, GPContext*);

struct special_file {
      char        *name;
      getfunc_t   getfunc;
      putfunc_t   putfunc;
};

static int nrofspecial_files = 0;
static struct special_file *special_files = NULL;

static int
add_special_file (char *name, getfunc_t getfunc, putfunc_t putfunc) {
      if (nrofspecial_files)
            special_files = realloc (special_files, sizeof(special_files[0])*(nrofspecial_files+1));
      else
            special_files = malloc (sizeof(special_files[0]));

      special_files[nrofspecial_files].name = strdup(name);
      special_files[nrofspecial_files].putfunc = putfunc;
      special_files[nrofspecial_files].getfunc = getfunc;
      nrofspecial_files++;
      return (GP_OK);
}

#define STORAGE_FOLDER_PREFIX       "store_"

/* PTP error descriptions */
static struct {
      short n;
      const char *txt;
} ptp_errors[] = {
      {PTP_RC_Undefined,            N_("PTP Undefined Error")},
      {PTP_RC_OK,                   N_("PTP OK!")},
      {PTP_RC_GeneralError,         N_("PTP General Error")},
      {PTP_RC_SessionNotOpen,       N_("PTP Session Not Open")},
      {PTP_RC_InvalidTransactionID,       N_("PTP Invalid Transaction ID")},
      {PTP_RC_OperationNotSupported,      N_("PTP Operation Not Supported")},
      {PTP_RC_ParameterNotSupported,      N_("PTP Parameter Not Supported")},
      {PTP_RC_IncompleteTransfer,   N_("PTP Incomplete Transfer")},
      {PTP_RC_InvalidStorageId,     N_("PTP Invalid Storage ID")},
      {PTP_RC_InvalidObjectHandle,  N_("PTP Invalid Object Handle")},
      {PTP_RC_DevicePropNotSupported, N_("PTP Device Prop Not Supported")},
      {PTP_RC_InvalidObjectFormatCode, N_("PTP Invalid Object Format Code")},
      {PTP_RC_StoreFull,            N_("PTP Store Full")},
      {PTP_RC_ObjectWriteProtected,       N_("PTP Object Write Protected")},
      {PTP_RC_StoreReadOnly,        N_("PTP Store Read Only")},
      {PTP_RC_AccessDenied,         N_("PTP Access Denied")},
      {PTP_RC_NoThumbnailPresent,   N_("PTP No Thumbnail Present")},
      {PTP_RC_SelfTestFailed,       N_("PTP Self Test Failed")},
      {PTP_RC_PartialDeletion,      N_("PTP Partial Deletion")},
      {PTP_RC_StoreNotAvailable,    N_("PTP Store Not Available")},
      {PTP_RC_SpecificationByFormatUnsupported,
                        N_("PTP Specification By Format Unsupported")},
      {PTP_RC_NoValidObjectInfo,    N_("PTP No Valid Object Info")},
      {PTP_RC_InvalidCodeFormat,    N_("PTP Invalid Code Format")},
      {PTP_RC_UnknownVendorCode,    N_("PTP Unknown Vendor Code")},
      {PTP_RC_CaptureAlreadyTerminated,
                              N_("PTP Capture Already Terminated")},
      {PTP_RC_DeviceBusy,           N_("PTP Device Busy")},
      {PTP_RC_InvalidParentObject,  N_("PTP Invalid Parent Object")},
      {PTP_RC_InvalidDevicePropFormat, N_("PTP Invalid Device Prop Format")},
      {PTP_RC_InvalidDevicePropValue, N_("PTP Invalid Device Prop Value")},
      {PTP_RC_InvalidParameter,     N_("PTP Invalid Parameter")},
      {PTP_RC_SessionAlreadyOpened,       N_("PTP Session Already Opened")},
      {PTP_RC_TransactionCanceled,  N_("PTP Transaction Canceled")},
      {PTP_RC_SpecificationOfDestinationUnsupported,
                  N_("PTP Specification Of Destination Unsupported")},
      {PTP_RC_EK_FilenameRequired,  N_("PTP EK Filename Required")},
      {PTP_RC_EK_FilenameConflicts, N_("PTP EK Filename Conflicts")},
      {PTP_RC_EK_FilenameInvalid,   N_("PTP EK Filename Invalid")},

      {PTP_ERROR_IO,            N_("PTP I/O error")},
      {PTP_ERROR_BADPARAM,      N_("PTP Error: bad parameter")},
      {PTP_ERROR_DATA_EXPECTED, N_("PTP Protocol error, data expected")},
      {PTP_ERROR_RESP_EXPECTED, N_("PTP Protocol error, response expected")},
      {0, NULL}
};

static void
report_result (GPContext *context, short result)
{
      unsigned int i;

      for (i = 0; ptp_errors[i].txt; i++)
            if (ptp_errors[i].n == result)
                  gp_context_error (context, "%s", dgettext(GETTEXT_PACKAGE, ptp_errors[i].txt));
}

static int
translate_ptp_result (short result)
{
      switch (result) {
      case PTP_RC_ParameterNotSupported:
            return (GP_ERROR_BAD_PARAMETERS);
      case PTP_ERROR_BADPARAM:
            return (GP_ERROR_BAD_PARAMETERS);
      case PTP_RC_OK:
            return (GP_OK);
      default:
            return (GP_ERROR);
      }
}

static short
translate_gp_result (int result)
{
      switch (result) {
      case GP_OK:
            return (PTP_RC_OK);
      case GP_ERROR:
      default:
            GP_DEBUG ("PTP: gp_port_* function returned 0x%04x \t %i",result,result);
            return (PTP_RC_GeneralError);
      }
}

static struct {
      const char *model;
      unsigned short usb_vendor;
      unsigned short usb_product;
      unsigned long known_bugs;
} models[] = {
      /*
       * The very first PTP camera (with special firmware only), also
       * called "PTP Prototype", may report non PTP interface class
       */
      {"Kodak:DC240 (PTP mode)",  0x040a, 0x0121, 0},
      /*
       * Old DC-4800 firmware reported custom interface class, so we have
       * to detect it by product/vendor IDs
       */
      {"Kodak:DC4800", 0x040a, 0x0160, 0},
      /* Below other camers known to be detected by interface class */

      {"Kodak:DX3900", 0x040a, 0x0170, 0},
      {"Kodak:MC3",    0x040a, 0x0400, 0},
      {"Kodak:DX3500", 0x040a, 0x0500, 0},
      {"Kodak:DX3600", 0x040a, 0x0510, 0},
      {"Kodak:DX3215", 0x040a, 0x0525, 0},
      {"Kodak:DX3700", 0x040a, 0x0530, 0},
      {"Kodak:CX4230", 0x040a, 0x0535, 0},
      {"Kodak:LS420",  0x040a, 0x0540, 0},
      {"Kodak:DX4900", 0x040a, 0x0550, 0},
      {"Kodak:DX4330", 0x040a, 0x0555, 0},
      {"Kodak:CX4200", 0x040a, 0x0560, 0},
      {"Kodak:CX4210", 0x040a, 0x0560, 0},
      {"Kodak:LS743",  0x040a, 0x0565, 0},
      /* both above with different product IDs
         normal/retail versions of the same model */
      {"Kodak:CX4300", 0x040a, 0x0566, 0},
      {"Kodak:CX4310", 0x040a, 0x0566, 0},
      {"Kodak:LS753",  0x040a, 0x0567, 0},
      {"Kodak:LS443",  0x040a, 0x0568, 0},
      {"Kodak:LS663",  0x040a, 0x0569, 0},
      {"Kodak:DX6340", 0x040a, 0x0570, 0},
      {"Kodak:CX6330", 0x040a, 0x0571, 0},
      {"Kodak:DX6440", 0x040a, 0x0572, 0},
      {"Kodak:CX6230", 0x040a, 0x0573, 0},
      {"Kodak:CX6200", 0x040a, 0x0574, 0},
      {"Kodak:DX6490", 0x040a, 0x0575, 0},
      {"Kodak:DX4530", 0x040a, 0x0576, 0},
      {"Kodak:DX7630", 0x040a, 0x0577, 0},
      {"Kodak:CX7300", 0x040a, 0x0578, 0},
      {"Kodak:CX7310", 0x040a, 0x0578, 0},
      {"Kodak:CX7220", 0x040a, 0x0579, 0},
      {"Kodak:CX7330", 0x040a, 0x057a, 0},
      {"Kodak:CX7430", 0x040a, 0x057b, 0},
      {"Kodak:CX7530", 0x040a, 0x057c, 0},
      {"Kodak:DX7440", 0x040a, 0x057d, 0},
      {"Kodak:DX7590", 0x040a, 0x057f, 0},
      {"Kodak:CX6445", 0x040a, 0x0584, 0},
      {"Kodak:CX7525", 0x040a, 0x0586, 0},

      /* HP PTP cameras */
      {"HP:PhotoSmart 812 (PTP mode)", 0x03f0, 0x4202, 0},
      {"HP:PhotoSmart 850 (PTP mode)", 0x03f0, 0x4302, 0},
      /* HP PhotoSmart 935: T. Kaproncai, 25 Jul 2003*/
      {"HP:PhotoSmart 935 (PTP mode)", 0x03f0, 0x4402, 0},
      /* HP:PhotoSmart 945: T. Jelbert, 2004/03/29    */
      {"HP:PhotoSmart 945 (PTP mode)", 0x03f0, 0x4502, 0},
      {"HP:PhotoSmart 318 (PTP mode)", 0x03f0, 0x6302, 0},
      {"HP:PhotoSmart 612 (PTP mode)", 0x03f0, 0x6302, 0},
      {"HP:PhotoSmart 715 (PTP mode)", 0x03f0, 0x6402, 0},
      {"HP:PhotoSmart 120 (PTP mode)", 0x03f0, 0x6502, 0},
      {"HP:PhotoSmart 320 (PTP mode)", 0x03f0, 0x6602, 0},
      {"HP:PhotoSmart 720 (PTP mode)", 0x03f0, 0x6702, 0},
      {"HP:PhotoSmart 620 (PTP mode)", 0x03f0, 0x6802, 0},
      {"HP:PhotoSmart 735 (PTP mode)", 0x03f0, 0x6a02, 0},  
      {"HP:PhotoSmart R707 (PTP mode)", 0x03f0, 0x6b02, 0},
        {"HP:PhotoSmart 635 (PTP mode)", 0x03f0, 0x7102, 0},
      /* report from Federico Prat Villar <fprat@lsi.uji.es> */
      {"HP:PhotoSmart 43x (PTP mode)", 0x03f0, 0x7202, 0},
      {"HP:PhotoSmart M307 (PTP mode)", 0x03f0, 0x7302, 0},

      /* Most Sony PTP cameras use the same product/vendor IDs. */
      {"Sony:PTP",                  0x054c, 0x004e, 0},
      {"Sony:DSC-P5 (PTP mode)",    0x054c, 0x004e, 0},
      {"Sony:DSC-P10 (PTP mode)",   0x054c, 0x004e, 0},
      {"Sony:DSC-F707V (PTP mode)", 0x054c, 0x004e, 0},
      {"Sony:DSC-F717 (PTP mode)",  0x054c, 0x004e, 0},
      {"Sony:DSC-F828 (PTP mode)",  0x054c, 0x004e, 0},
      {"Sony:DSC-P30 (PTP mode)",   0x054c, 0x004e, 0},
      /* P32 reported on May 1st by Justin Alexander <justin (at) harshangel.com> */
      {"Sony:DSC-P31 (PTP mode)",   0x054c, 0x004e, 0}, 
      {"Sony:DSC-P32 (PTP mode)",   0x054c, 0x004e, 0}, 
      {"Sony:DSC-P41 (PTP mode)",   0x054c, 0x004e, 0}, 
      {"Sony:DSC-P43 (PTP mode)",   0x054c, 0x004e, 0}, 
      {"Sony:DSC-P50 (PTP mode)",   0x054c, 0x004e, 0},
      {"Sony:DSC-P51 (PTP mode)",   0x054c, 0x004e, 0},
      {"Sony:DSC-P52 (PTP mode)",   0x054c, 0x004e, 0},
      {"Sony:DSC-P71 (PTP mode)",   0x054c, 0x004e, 0},
      {"Sony:DSC-P72 (PTP mode)",   0x054c, 0x004e, 0},
      {"Sony:DSC-P73 (PTP mode)",   0x054c, 0x004e, 0},
      {"Sony:DSC-P92 (PTP mode)",   0x054c, 0x004e, 0},
      {"Sony:DSC-P93 (PTP mode)",   0x054c, 0x004e, 0},
      {"Sony:DSC-P100 (PTP mode)",  0x054c, 0x004e, 0},
      {"Sony:DSC-P120 (PTP mode)",  0x054c, 0x004e, 0},
      {"Sony:DSC-S75 (PTP mode)",   0x054c, 0x004e, 0},
      {"Sony:DSC-S85 (PTP mode)",   0x054c, 0x004e, 0},
      {"Sony:DSC-T1 (PTP mode)",    0x054c, 0x004e, 0},
      {"Sony:DSC-T3 (PTP mode)",    0x054c, 0x004e, 0},
      {"Sony:DSC-U20 (PTP mode)",   0x054c, 0x004e, 0},
      {"Sony:DSC-V1 (PTP mode)",    0x054c, 0x004e, 0},
      {"Sony:DSC-W1 (PTP mode)",    0x054c, 0x004e, 0},
      {"Sony:DSC-W12 (PTP mode)",   0x054c, 0x004e, 0},
      {"Sony:MVC-CD300 (PTP mode)", 0x054c, 0x004e, 0},
      {"Sony:MVC-CD500 (PTP mode)", 0x054c, 0x004e, 0},

      /* Nikon Coolpix 2500: M. Meissner, 05 Oct 2003 */
      {"Nikon:Coolpix 2500 (PTP mode)", 0x04b0, 0x0109, 0},
      /* Nikon Coolpix 5700: A. Tanenbaum, 29 Oct 2002 */
      {"Nikon:Coolpix 5700 (PTP mode)", 0x04b0, 0x010d, 0},
      /* Nikon CoolPix 4500: T. Kaproncai, 22 Aug 2003 */
      {"Nikon CoolPix 4500 (PTP mode)", 0x04b0, 0x010b, 0},
      /* Nikon Coolpix 4300: Marco Rodriguez, 10 dic 2002 */
      {"Nikon:Coolpix 4300 (PTP mode)", 0x04b0, 0x010f, 0},
      /* Nikon Coolpix 3500: M. Meissner, 07 May 2003 */
      {"Nikon:Coolpix 3500 (PTP mode)", 0x04b0, 0x0111, 0},
      /* Nikon Coolpix 885: S. Anderson, 19 nov 2002 */
      {"Nikon:Coolpix 885 (PTP mode)",  0x04b0, 0x0112, 0},
      /* Nikon Coolpix 5000, Firmware v1.7 or later */
      {"Nikon:Coolpix 5000 (PTP mode)", 0x04b0, 0x0113, 0},
      /* Nikon Coolpix 3100 */
      {"Nikon:Coolpix 3100 (PTP mode)", 0x04b0, 0x0115, 0},
      /* Nikon Coolpix 2100 */
      {"Nikon:Coolpix 2100 (PTP mode)", 0x04b0, 0x0117, 0},
      /* Nikon Coolpix 5400: T. Kaproncai, 25 Jul 2003 */
      {"Nikon:Coolpix 5400 (PTP mode)", 0x04b0, 0x0119, 0},
      /* Nikon Coolpix 3700: T. Ehlers, 18 Jan 2004 */
      {"Nikon:Coolpix 3700 (PTP mode)", 0x04b0, 0x011d, 0},
      /* Nikon Coolpix 3200 */
      {"Nikon:Coolpix 3200 (PTP mode)", 0x04b0, 0x0121, 0},
      /* Nikon Coolpix 2200 */
      {"Nikon:Coolpix 2200 (PTP mode)", 0x04b0, 0x0122, 0},
      /* Nikon Coolpix SQ: M. Holzbauer, 07 Jul 2003 */
      {"Nikon:Coolpix 4100 (PTP mode)", 0x04b0, 0x012d, 0},
      {"Nikon:Coolpix SQ (PTP mode)",   0x04b0, 0x0202, 0},
      /* lars marowski bree, 16.8.2004 */
      {"Nikon:Coolpix 4200 (PTP mode)", 0x04b0, 0x0204, 0},
      /* Nikon Coolpix 2000 */
      {"Nikon:Coolpix 2000 (PTP mode)", 0x04b0, 0x0302, 0},
      /* Nikon D100 has a PTP mode: westin 2002.10.16 */
      {"Nikon:DSC D100 (PTP mode)",     0x04b0, 0x0402, 0},
      /* D2H SLR in PTP mode from Steve Drew <stevedrew@gmail.com> */
      {"Nikon:D2H SLR (PTP mode)",      0x04b0, 0x0404, 0},
      {"Nikon:DSC D70 (PTP mode)",      0x04b0, 0x0406, 0},

      /* Justin Case <justin_case@gmx.net> */
      {"Nikon:D2X SLR (PTP mode)",      0x04b0, 0x0408, 0},

      /* reported by Steve Drew <stevedrew@gmail.com> */
      {"Nikon:D2Hs SLR (PTP mode)",     0x04b0, 0x040c, 0},

      /* Thomas Luzat <thomas.luzat@gmx.net> */
      {"Panasonic:DMC-FZ20 (alternate id)", 0x04da, 0x2372, 0},

      {"Panasonic:DMC-FZ20",            0x04da, 0x2374, 0},

      /* From Thomas Hackel */
      {"Olympus:C-370Z",                0x07b4, 0x0109, 0},
      {"Olympus:X-450",                 0x07b4, 0x0109, 0},
      {"Olympus:D-535Z",                0x07b4, 0x0109, 0},

      /* http://callendor.zongo.be/wiki/OlympusMju500 */
      {"Olympus:mju 500",               0x07b4, 0x0113, 0},
      /* From VICTOR <viaaurea@yahoo.es> */
      {"Olympus:C-350Z",                0x07b4, 0x0114, 0},
      {"Olympus:D-560Z",                0x07b4, 0x0114, 0},
      {"Olympus:X-250",                 0x07b4, 0x0114, 0},

      /* (at least some) newer Canon cameras can be switched between
       * PTP and "normal" (i.e. Canon) mode
       * Canon PS G3: A. Marinichev, 20 nov 2002
       */
      {"Canon:PowerShot S45 (PTP mode)",      0x04a9, 0x306d, 0},
            /* 0x306c is S45 in normal (canon) mode */
      {"Canon:PowerShot G3 (PTP mode)",       0x04a9, 0x306f, 0},
            /* 0x306e is G3 in normal (canon) mode */
      {"Canon:PowerShot S230 (PTP mode)",     0x04a9, 0x3071, 0},
            /* 0x3070 is S230 in normal (canon) mode */
      {"Canon:Digital IXUS v3 (PTP mode)",    0x04a9, 0x3071, 0},
            /* it's the same as S230 */

      {"Canon:Digital IXUS II (PTP mode)",    0x04a9, 0x3072, 0},
      {"Canon:PowerShot SD100 (PTP mode)",    0x04a9, 0x3072, 0},

      {"Canon:PowerShot A70 (PTP)",           0x04a9, 0x3073, 0},
      {"Canon:PowerShot A60 (PTP)",           0x04a9, 0x3074, 0},
            /* IXUS 400 has the same PID in both modes, Till Kamppeter */
      {"Canon:Digital IXUS 400 (PTP mode)",   0x04a9, 0x3075, 0},
      {"Canon:PowerShot S50 (PTP mode)",      0x04a9, 0x3077, 0},
      {"Canon:PowerShot G5 (PTP mode)",       0x04a9, 0x3085, 0},
      {"Canon:Elura 50 (PTP mode)",           0x04a9, 0x3087, 0},
            /* 0x3084 is the EOS 300D/Digital Rebel in normal (canon) mode */
      {"Canon:EOS 300D (PTP mode)",           0x04a9, 0x3099, PTPBUG_DCIM_WRONG_PARENT},
      {"Canon:EOS Digital Rebel (PTP mode)",  0x04a9, 0x3099, PTPBUG_DCIM_WRONG_PARENT},
      {"Canon:EOS Kiss Digital (PTP mode)",   0x04a9, 0x3099, PTPBUG_DCIM_WRONG_PARENT},
      {"Canon:PowerShot A80 (PTP)",           0x04a9, 0x309a, 0},
      {"Canon:Digital IXUS i (PTP mode)",     0x04a9, 0x309b, 0},
      {"Canon:PowerShot S1 IS (PTP mode)",    0x04a9, 0x309c, 0},
      {"Canon:Powershot S70 (PTP mode)",      0x04a9, 0x30b1, 0},
      {"Canon:Powershot S60 (PTP mode)",      0x04a9, 0x30b2, 0},
      {"Canon:Powershot G6 (PTP mode)",       0x04a9, 0x30b3, 0},
      {"Canon:Digital IXUS 500 (PTP mode)",   0x04a9, 0x30b4, 0},
      {"Canon:PowerShot S500 (PTP mode)",     0x04a9, 0x30b4, 0},
      {"Canon:PowerShot A75 (PTP mode)",      0x04a9, 0x30b5, 0},
      {"Canon:PowerShot SD110 (PTP mode)",    0x04a9, 0x30b6, 0},
      {"Canon:Digital IXUS IIs (PTP mode)",   0x04a9, 0x30b6, 0},
      {"Canon:PowerShot A400 (PTP mode)",     0x04a9, 0x30b7, 0},
      {"Canon:PowerShot A310 (PTP mode)",     0x04a9, 0x30b8, 0},
      {"Canon:PowerShot A85 (PTP mode)",      0x04a9, 0x30b9, 0},
      {"Canon:Digital IXUS 430 (PTP mode)",   0x04a9, 0x30ba, 0},
      {"Canon:PowerShot S410 (PTP mode)",     0x04a9, 0x30ba, 0},
      {"Canon:PowerShot A95 (PTP mode)",      0x04a9, 0x30bb, 0},
      {"Canon:Digital IXUS 40 (PTP mode)",    0x04a9, 0x30bf, 0},
      {"Canon:PowerShot SD200 (PTP mode)",    0x04a9, 0x30c0, 0},
      {"Canon:Digital IXUS 30 (PTP mode)",    0x04a9, 0x30c0, 0},
      {"Canon:PowerShot A520 (PTP mode)",     0x04a9, 0x30c1, 0},
      {"Canon:PowerShot A510 (PTP mode)",     0x04a9, 0x30c2, 0},
      {"Canon:EOS 1D Mark II (PTP mode)",     0x04a9, 0x30ea, PTPBUG_DCIM_WRONG_PARENT},
      {"Canon:EOS 20D (PTP mode)",            0x04a9, 0x30ec, PTPBUG_DCIM_WRONG_PARENT},
      {"Canon:EOS 350D (PTP mode)",           0x04a9, 0x30ef, PTPBUG_DCIM_WRONG_PARENT},
      {"Canon:PowerShot S2 IS (PTP mode)",    0x04a9, 0x30f0, 0},
      {"Canon:Digital IXUS 700 (PTP mode)",   0x04a9, 0x30f2, 0},
      {"Canon:PowerShot SD500 (PTP mode)",    0x04a9, 0x30f2, 0},

      /* Nick Richards <nick@nedrichards.com> */
      {"Canon:Digital IXUS 50 (PTP mode)",    0x04a9, 0x310e, 0},

      /* Konica-Minolta PTP cameras */
      {"Konica-Minolta:DiMAGE A2 (PTP mode)",        0x132b, 0x0001, 0},
      {"Konica-Minolta:DiMAGE Z2 (PictBridge mode)", 0x132b, 0x0007, 0},
      {"Konica-Minolta:DiMAGE Z3 (PictBridge mode)", 0x132b, 0x0018, 0},
      {"Konica-Minolta:DiMAGE Z5 (PictBridge mode)", 0x132b, 0x0022, 0},

      /* Fuji PTP cameras */
      {"Fuji:FinePix S7000 (PictBridge mode)",0x04cb, 0x0142, 0},
      {"Fuji:FinePix A330 (PictBridge mode)",0x04cb, 0x014a, 0},

      /* Ricoh Caplio GX */
      {"Ricoh:Caplio GX (PTP mode)",          0x05ca, 0x0325, 0},

      /* Pentax cameras */
      {"Pentax:Optio 43WR",                   0x0a17, 0x000d, 0},

      /* more coming soon :) */
      {NULL, 0, 0, 0}
};

static struct {
      unsigned short format_code;
      const char *txt;
} object_formats[] = {
      {PTP_OFC_Undefined,     "application/x-unknown"},
      {PTP_OFC_Association,   "application/x-association"},
      {PTP_OFC_Script,  "application/x-script"},
      {PTP_OFC_Executable,    "application/octet-stream"},
      {PTP_OFC_Text,          "text/plain"},
      {PTP_OFC_HTML,          "text/html"},
      {PTP_OFC_DPOF,          "text/plain"},
      {PTP_OFC_AIFF,          "audio/x-aiff"},
      {PTP_OFC_WAV,           GP_MIME_WAV},
      {PTP_OFC_MP3,           "audio/basic"},
      {PTP_OFC_AVI,           GP_MIME_AVI},
      {PTP_OFC_MPEG,          "video/mpeg"},
      {PTP_OFC_ASF,           "video/x-asf"},
      {PTP_OFC_QT,            "video/quicktime"},
      {PTP_OFC_EXIF_JPEG,     GP_MIME_JPEG},
      {PTP_OFC_TIFF_EP, "image/x-tiffep"},
      {PTP_OFC_FlashPix,      "image/x-flashpix"},
      {PTP_OFC_BMP,           GP_MIME_BMP},
      {PTP_OFC_CIFF,          "image/x-ciff"},
      {PTP_OFC_Undefined_0x3806, "application/x-unknown"},
      {PTP_OFC_GIF,           "image/gif"},
      {PTP_OFC_JFIF,          GP_MIME_JPEG},
      {PTP_OFC_PCD,           "image/x-pcd"},
      {PTP_OFC_PICT,          "image/x-pict"},
      {PTP_OFC_PNG,           GP_MIME_PNG},
      {PTP_OFC_Undefined_0x380C, "application/x-unknown"},
      {PTP_OFC_TIFF,          GP_MIME_TIFF},
      {PTP_OFC_TIFF_IT, "image/x-tiffit"},
      {PTP_OFC_JP2,           "image/x-jpeg2000bff"},
      {PTP_OFC_JPX,           "image/x-jpeg2000eff"},
      {0,               NULL}
};

static int
set_mimetype (Camera *camera, CameraFile *file, uint16_t ofc)
{
      int i;

      for (i = 0; object_formats[i].format_code; i++)
            if (object_formats[i].format_code == ofc)
            {
                  CR (gp_file_set_mime_type (file, object_formats[i].txt));
                  return (GP_OK);
            }

      CR (gp_file_set_mime_type (file, "application/x-unknown"));
      return (GP_OK);
}



static void
strcpy_mime(char * dest, uint16_t ofc) {
      int i;

      for (i = 0; object_formats[i].format_code; i++)
            if (object_formats[i].format_code == ofc) {
                  strcpy(dest, object_formats[i].txt);
                  return;
            }
      strcpy(dest, "application/x-unknown");
}

static uint32_t
get_mimetype (Camera *camera, CameraFile *file)
{
      int i;
      const char *mimetype;

      gp_file_get_mime_type (file, &mimetype);
      for (i = 0; object_formats[i].format_code; i++)
            if (!strcmp(mimetype,object_formats[i].txt))
                  return (object_formats[i].format_code);
      return (PTP_OFC_Undefined);
}
      
struct _CameraPrivateLibrary {
      PTPParams params;
      unsigned long bugs;
};

struct _PTPData {
      Camera *camera;
      GPContext *context;
};
typedef struct _PTPData PTPData;

static short
ptp_read_func (unsigned char *bytes, unsigned int size, void *data, unsigned int *readbytes)
{
      Camera *camera = ((PTPData *)data)->camera;
      int toread, result = GP_ERROR, curread = 0;

      /* Split into small blocks. Too large blocks (>1x MB) would
       * timeout.
       */
      while (curread < size) {
            toread =size - curread;
            if (toread > 4096)
                  toread = 4096;
            result = gp_port_read (camera->port, bytes + curread, toread);
            if (result == 0)
                  result = gp_port_read (camera->port, bytes + curread, toread);
            if (result < 0)
                  break;
            curread += result;
            if (result < toread) /* short reads are common */
                  break;
      }
      if (result > 0) {
            *readbytes = curread;
            return (PTP_RC_OK);
      } else {
            return (translate_gp_result (result));
      }
}

static short
ptp_write_func (unsigned char *bytes, unsigned int size, void *data)
{
      Camera *camera = ((PTPData *)data)->camera;
      int result;

      /*
       * gp_port_write returns (in case of success) the number of bytes
       * write. libptp doesn't need that.
       */
      result = gp_port_write (camera->port, bytes, size);
      if (result >= 0)
            return (PTP_RC_OK);
      else
      {
            perror("gp_port_write");
            return (translate_gp_result (result));
      }
}

static short
ptp_check_int (unsigned char *bytes, unsigned int size, void *data, unsigned int *rlen)
{
      Camera *camera = ((PTPData *)data)->camera;
      int result;

      /*
       * gp_port_check_int returns (in case of success) the number of bytes
       * read.
       */

      result = gp_port_check_int (camera->port, bytes, size);
      if (result==0) result = gp_port_check_int (camera->port, bytes, size);
      if (result >= 0) {
            *rlen = result;
            return (PTP_RC_OK);
      } else {
            return (translate_gp_result (result));
      }
}

static short
ptp_check_int_fast (unsigned char *bytes, unsigned int size, void *data, unsigned int *rlen)
{
      Camera *camera = ((PTPData *)data)->camera;
      int result;

      /*
       * gp_port_check_int returns (in case of success) the number of bytes
       * read. libptp doesn't need that.
       */

      result = gp_port_check_int_fast (camera->port, bytes, size);
      if (result==0) result = gp_port_check_int_fast (camera->port, bytes, size);
      if (result >= 0) {
            *rlen = result;
            return (PTP_RC_OK);
      } else {
            return (translate_gp_result (result));
      }
}


static void
#ifdef __GNUC__
__attribute__((__format__(printf,2,0)))
#endif
ptp_debug_func (void *data, const char *format, va_list args)
{
      gp_logv (GP_LOG_DEBUG, "ptp", format, args);
}

static void
#ifdef __GNUC__
__attribute__((__format__(printf,2,0)))
#endif
ptp_error_func (void *data, const char *format, va_list args)
{
      PTPData *ptp_data = data;
      char buf[2048];

      vsnprintf (buf, sizeof (buf), format, args);
      gp_context_error (ptp_data->context, "%s", buf);
}

int
camera_abilities (CameraAbilitiesList *list)
{
      int i;
      CameraAbilities a;

      memset(&a,0, sizeof(a));
      for (i = 0; models[i].model; i++) {
            strcpy (a.model, models[i].model);
            a.status = GP_DRIVER_STATUS_PRODUCTION;
            a.port   = GP_PORT_USB;
            a.speed[0] = 0;
            a.usb_vendor = models[i].usb_vendor;
            a.usb_product= models[i].usb_product;
            a.operations        = GP_CAPTURE_IMAGE | GP_OPERATION_CONFIG;
            a.file_operations   = GP_FILE_OPERATION_PREVIEW |
                              GP_FILE_OPERATION_DELETE;
            a.folder_operations = GP_FOLDER_OPERATION_PUT_FILE
                  | GP_FOLDER_OPERATION_MAKE_DIR |
                  GP_FOLDER_OPERATION_REMOVE_DIR;
            CR (gp_abilities_list_append (list, a));
            memset(&a,0, sizeof(a));
      }

      strcpy(a.model, "USB PTP Class Camera");
      a.status = GP_DRIVER_STATUS_TESTING;
      a.port   = GP_PORT_USB;
      a.speed[0] = 0;
      a.usb_class = 6;
      a.usb_subclass = -1;
      a.usb_protocol = -1;
      a.operations        = GP_CAPTURE_IMAGE | GP_OPERATION_CONFIG;
      a.file_operations   = GP_FILE_OPERATION_PREVIEW|
                        GP_FILE_OPERATION_DELETE;
      a.folder_operations = GP_FOLDER_OPERATION_PUT_FILE
            | GP_FOLDER_OPERATION_MAKE_DIR |
            GP_FOLDER_OPERATION_REMOVE_DIR;
      CR (gp_abilities_list_append (list, a));

      return (GP_OK);
}

int
camera_id (CameraText *id)
{
      strcpy (id->text, "PTP");

      return (GP_OK);
}

static int
camera_exit (Camera *camera, GPContext *context)
{
      if (camera->pl!=NULL) {
            /* close ptp session */
            ptp_closesession (&camera->pl->params);
            free (camera->pl);
            camera->pl = NULL;
      }
      if (camera->port!=NULL)  {
            /* clear halt */
            gp_port_usb_clear_halt
                        (camera->port, GP_PORT_USB_ENDPOINT_IN);
            gp_port_usb_clear_halt
                        (camera->port, GP_PORT_USB_ENDPOINT_OUT);
            gp_port_usb_clear_halt
                        (camera->port, GP_PORT_USB_ENDPOINT_INT);
      }

      /* FIXME: free all camera->pl->params.objectinfo[] and
         other malloced data */

      return (GP_OK);
}

static int
camera_about (Camera *camera, CameraText *text, GPContext *context)
{
      strncpy (text->text,
             _("PTP2 driver\n"
               "(c)2001-2003 by Mariusz Woloszyn <emsi@ipartners.pl>.\n"
               "Enjoy!"), sizeof (text->text));
      return (GP_OK);
}

static inline int
handle_to_n (uint32_t handle, Camera *camera)
{
      int i;
      for (i = 0; i < camera->pl->params.handles.n; i++)
            if (camera->pl->params.handles.Handler[i]==handle) return i;
      /* else not found */
      return (PTP_HANDLER_SPECIAL);
}

static inline int
storage_handle_to_n (uint32_t storage, uint32_t handle, Camera *camera)
{
      int i;
      for (i = 0; i < camera->pl->params.handles.n; i++)
            if (  (camera->pl->params.handles.Handler[i] == handle) &&
                  (camera->pl->params.objectinfo[i].StorageID == storage)
            )
                  return i;
      /* else not found */
      return (PTP_HANDLER_SPECIAL);
}

/* add new object to internal driver structures. issued when creating
folder, uploading objects, or captured images. */
static int
add_object (Camera *camera, uint32_t handle, GPContext *context)
{
      int n;

      /* increase number of objects */
      n=++camera->pl->params.handles.n;
      /* realloc more space for camera->pl->params.objectinfo */
      camera->pl->params.objectinfo = (PTPObjectInfo*)
            realloc(camera->pl->params.objectinfo,
                  sizeof(PTPObjectInfo)*n);
      /* realloc more space for amera->pl->params.handles.Handler */
      camera->pl->params.handles.Handler= (uint32_t *)
            realloc(camera->pl->params.handles.Handler,
                  sizeof(uint32_t)*n);
      /* clear objectinfo entry for new object and assign new handler */
      memset(&camera->pl->params.objectinfo[n-1],0,sizeof(PTPObjectInfo));
      camera->pl->params.handles.Handler[n-1]=handle;
      /* get new obectinfo */
      CPR (context, ptp_getobjectinfo(&camera->pl->params,
            handle,
            &camera->pl->params.objectinfo[n-1]));
      return (GP_OK);
}

static int
camera_prepare_capture (Camera *camera, GPContext *context)
{
      PTPUSBEventContainer    event;
      PTPContainer            evc;
      PTPPropertyValue  propval;
      uint16_t          val16;
      int               i, ret, isevent;
      PTPParams         *params = &camera->pl->params;

      gp_log (GP_LOG_DEBUG, "ptp", "prepare_capture\n");
      switch (params->deviceinfo.VendorExtensionID) {
      case PTP_VENDOR_CANON:
            if (!ptp_operation_issupported(params, PTP_OC_CANON_StartShootingMode)) {
                  gp_context_error(context,
                  _("Sorry, your Canon camera does not support Canon capture"));
                  return GP_ERROR_NOT_SUPPORTED;
            }
            
            propval.u16 = 0;
            ret = ptp_getdevicepropvalue(params, 0xd045, &propval, PTP_DTC_UINT16);
            if (ret != PTP_RC_OK) {
                  gp_log (GP_LOG_DEBUG, "ptp", "failed get 0xd045\n");
                  return GP_ERROR;
            }
            gp_log (GP_LOG_DEBUG, "ptp","prop 0xd045 value is 0x%4X\n",propval.u16);

            propval.u16=1;
            ret = ptp_setdevicepropvalue(params, 0xd045, &propval, PTP_DTC_UINT16);
            ret = ptp_getdevicepropvalue(params, 0xd02e, &propval, PTP_DTC_UINT32);
            gp_log (GP_LOG_DEBUG, "ptp", "prop 0xd02e value is 0x%8X, ret %d\n",propval.u32, ret);
            ret = ptp_getdevicepropvalue(params, 0xd02f, &propval, PTP_DTC_UINT32);
            gp_log (GP_LOG_DEBUG, "ptp", "prop 0xd02f value is 0x%8X, ret %d\n",propval.u32, ret);

            ret = ptp_getdeviceinfo (params, &params->deviceinfo);
            ret = ptp_getdeviceinfo (params, &params->deviceinfo);

            ret = ptp_getdevicepropvalue(params, 0xd02e, &propval, PTP_DTC_UINT32);
            gp_log (GP_LOG_DEBUG, "ptp", "prop 0xd02e value is 0x%8x, ret %d\n",propval.u32, ret);
            ret = ptp_getdevicepropvalue(params, 0xd02f, &propval, PTP_DTC_UINT32);
            gp_log (GP_LOG_DEBUG, "ptp", "prop 0xd02f value is 0x%8x, ret %d\n",propval.u32,ret);
            ret = ptp_getdeviceinfo (params, &params->deviceinfo);
            ret = ptp_getdevicepropvalue(params, 0xd045, &propval, PTP_DTC_UINT16);
            gp_log (GP_LOG_DEBUG, "ptp","prop 0xd045 value is 0x%4x, ret %d\n",propval.u16,ret);

            gp_log (GP_LOG_DEBUG, "ptp","Magic code ends.\n");
        
            gp_log (GP_LOG_DEBUG, "ptp","Setting prop. 0xd045 to 4\n");
            propval.u16=4;
            ret = ptp_setdevicepropvalue(params, PTP_DPC_CANON_D045, &propval, PTP_DTC_UINT16);

            CPR (context, ptp_canon_startshootingmode (params));

            /* Catch event */
            if (PTP_RC_OK==(val16=ptp_usb_event_wait (params, &evc))) {
                  if (evc.Code==PTP_EC_StorageInfoChanged)
                        gp_log (GP_LOG_DEBUG, "ptp", "Event: entering  shooting mode. \n");
                  else 
                        gp_log (GP_LOG_DEBUG, "ptp", "Event: 0x%X\n", evc.Code);
            } else {
                  printf("No event yet, we'll try later.\n");
            }
    
            /* Emptying event stack */
            for (i=0;i<2;i++) {
                  ret = ptp_canon_checkevent (params,&event,&isevent);
                  if (ret != PTP_RC_OK) {
                        gp_log (GP_LOG_DEBUG, "ptp", "error during check event: %d\n", ret);
                  }
                  if (isevent)
                        gp_log (GP_LOG_DEBUG, "ptp", "evdata: L=0x%X, T=0x%X, C=0x%X, trans_id=0x%X, p1=0x%X, p2=0x%X, p3=0x%X\n",
                              event.length,event.type,event.code,event.trans_id,
                              event.param1, event.param2, event.param3);
            }
            /* Catch event, attempt  2 */
            if (val16!=PTP_RC_OK) {
                  if (PTP_RC_OK==ptp_usb_event_wait (params, &evc)) {
                        if (evc.Code == PTP_EC_StorageInfoChanged)
                              gp_log (GP_LOG_DEBUG, "ptp","Event: entering shooting mode.\n");
                        else
                              gp_log (GP_LOG_DEBUG, "ptp","Event: 0x%X\n", evc.Code);
                  } else
                        gp_log (GP_LOG_DEBUG, "ptp", "No expected mode change event.\n");
            }
            /* Reget device info, they change on the Canons. */
            ptp_getdeviceinfo(&camera->pl->params, &camera->pl->params.deviceinfo);
            return GP_OK;
      default:
            /* generic capture does not need preparation */
            return GP_OK;
      }
      return GP_OK;
}

static int
camera_unprepare_capture (Camera *camera, GPContext *context)
{
      int ret;

      gp_log (GP_LOG_DEBUG, "ptp", "Unprepare_capture\n");
      switch (camera->pl->params.deviceinfo.VendorExtensionID) {
      case PTP_VENDOR_CANON:
            if (!ptp_operation_issupported(&camera->pl->params, PTP_OC_CANON_EndShootingMode)) {
                  gp_context_error(context,
                  _("Sorry, your Canon camera does not support Canon capture"));
                  return GP_ERROR_NOT_SUPPORTED;
            }
            ret = ptp_canon_endshootingmode (&camera->pl->params);
            if (ret != PTP_RC_OK) {
                  gp_log (GP_LOG_DEBUG, "ptp", "end shooting mode error %d\n", ret);
                  return GP_ERROR;
            }
            /* Reget device info, they change on the Canons. */
            ptp_getdeviceinfo(&camera->pl->params, &camera->pl->params.deviceinfo);
            return GP_OK;
      default:
            /* generic capture does not need unpreparation */
            return GP_OK;
      }
      return GP_OK;
}

static int
camera_capture_preview (Camera *camera, CameraFile *file, GPContext *context)
{
      char        *data;
      uint32_t    size;
      int ret;
      PTPParams *params = &camera->pl->params;

      /* Currently disabled, since we must make sure for Canons
       * that prepare capture was called.
       * Enable: remote 0 &&, run 
       *    gphoto2 --set-config capture=on --capture-preview
       */
      if (  EXPERIMENTAL_CANON_CAPTURE &&
            camera->pl->params.deviceinfo.VendorExtensionID == PTP_VENDOR_CANON
      ) {
            if (!ptp_operation_issupported(&camera->pl->params, PTP_OC_CANON_ViewfinderOn)) {
                  gp_context_error (context,
                  _("Sorry, your Canon camera does not support Canon Viewfinder mode"));
                  return GP_ERROR_NOT_SUPPORTED;
            }
            ret = ptp_canon_viewfinderon (params);
            if (ret != PTP_RC_OK) {
                  gp_context_error (context, _("Canon enable viewfinder failed: %d"), ret);
                  return GP_ERROR;
            }
            ret = ptp_canon_getviewfinderimage (params, &data, &size);
            if (ret != PTP_RC_OK) {
                  gp_context_error (context, _("Canon get viewfinder image failed: %d"), ret);
                  return GP_ERROR;
            }
            gp_file_set_data_and_size ( file, data, size );
            gp_file_set_mime_type (file, GP_MIME_JPEG);     /* always */
            /* Add an arbitrary file name so caller won't crash */
            gp_file_set_name (file, "canon_preview.jpg");

            ret = ptp_canon_viewfinderon (params);
            if (ret != PTP_RC_OK) {
                  gp_context_error (context, _("Canon disable viewfinder failed: %d"), ret);
                  return GP_ERROR;
            }
            return GP_OK;
      }
      return GP_ERROR_NOT_SUPPORTED;
}

static int
get_folder_from_handle (Camera *camera, uint32_t storage, uint32_t handle, char *folder) {
      int i, ret;

      if (handle == PTP_HANDLER_ROOT)
            return GP_OK;

      i = storage_handle_to_n (storage, handle, camera);
      if (i == PTP_HANDLER_SPECIAL)
            return (GP_ERROR_BAD_PARAMETERS);

      ret = get_folder_from_handle (camera, storage, camera->pl->params.objectinfo[i].ParentObject, folder);
      if (ret != GP_OK)
            return ret;

      strcat (folder, camera->pl->params.objectinfo[i].Filename);
      strcat (folder, "/");
      return (GP_OK);
}

static int
camera_capture (Camera *camera, CameraCaptureType type, CameraFilePath *path,
            GPContext *context)
{
      PTPContainer event;
      PTPUSBEventContainer usbevent;
      int ret, i, isevent;
      PTPParams *params = &camera->pl->params;
      uint16_t val16;
      uint32_t handle;
      PTPPropertyValue propval;
      uint32_t    newobject = 0x0;

      if (type != GP_CAPTURE_IMAGE)
            return GP_ERROR_NOT_SUPPORTED;

      /* Canon mode disabled until functioning fully */
      /* to enable, remove 0&&, then:
       *    gphoto2 --set-config capture=on --config --capture-image
       *    gphoto2  -f /store_80000001 -p 1
       *          will download a file called "VirtualObject"
       */
      if (  EXPERIMENTAL_CANON_CAPTURE &&
            camera->pl->params.deviceinfo.VendorExtensionID == PTP_VENDOR_CANON
      ) {
            if (!ptp_operation_issupported(&camera->pl->params, PTP_OC_CANON_InitiateCaptureInMemory)) {
                  gp_context_error (context,
                  _("Sorry, your Canon camera does not support Canon Captureinitiation"));
                  return GP_ERROR_NOT_SUPPORTED;
            }
            propval.u16=3; /* 3 */
            ret = ptp_setdevicepropvalue(params, PTP_DPC_CANON_D029, &propval, PTP_DTC_UINT16);
            if (ret != PTP_RC_OK)
                  gp_log (GP_LOG_DEBUG, "ptp", "setdevicepropvalue 0xd029 failed, %d\n", ret);

            /* FIXME: For now, to avoid flash during debug */
            propval.u8 = 0;
            ret = ptp_setdevicepropvalue(params, PTP_DPC_CANON_FlashMode, &propval, PTP_DTC_UINT8);

            ret = ptp_canon_initiatecaptureinmemory (params);
            if (ret != PTP_RC_OK) {
                  gp_context_error (context, _("Canon Capture failed: %d"), ret);
                  return GP_ERROR;
            }
            /* Catch event */
            if (PTP_RC_OK == (val16 = ptp_usb_event_wait (params, &event))) {
                  if (event.Code == PTP_EC_CaptureComplete)
                        gp_log (GP_LOG_DEBUG, "ptp", "Event: capture complete. \n");
                  else
                        gp_log (GP_LOG_DEBUG, "ptp", "Unknown event: 0x%X\n", event.Code);
            } /* else no event yet ... try later. */

              /* checking events in stack. */
            for (i=0;i<100;i++) {
                  ret = ptp_canon_checkevent (params,&usbevent,&isevent);
                  if (ret!=PTP_RC_OK)
                        continue;
                  if (isevent)
                        gp_log (GP_LOG_DEBUG, "ptp","evdata: L=0x%X, T=0x%X, C=0x%X, trans_id=0x%X, p1=0x%X, p2=0x%X, p3=0x%X\n", usbevent.length,usbevent.type,usbevent.code,usbevent.trans_id, usbevent.param1, usbevent.param2, usbevent.param3);
                  if (  isevent  &&
                        (usbevent.type==PTP_USB_CONTAINER_EVENT) &&
                        (usbevent.code==PTP_EC_CANON_RequestObjectTransfer)
                  ) {
                        int j;

                        handle=usbevent.param1;
                        gp_log (GP_LOG_DEBUG, "ptp", "PTP_EC_CANON_RequestObjectTransfer, object handle=0x%X. \n",usbevent.param1);
                        gp_log (GP_LOG_DEBUG, "ptp","evdata: L=0x%X, T=0x%X, C=0x%X, trans_id=0x%X, p1=0x%X, p2=0x%X, p3=0x%X\n", usbevent.length,usbevent.type,usbevent.code,usbevent.trans_id, usbevent.param1, usbevent.param2, usbevent.param3);

                        add_object (camera, usbevent.param1, context);

                        for (j=0;j<2;j++) {
                              ret=ptp_canon_checkevent(params,&usbevent,&isevent);
                              if ((ret==PTP_RC_OK) && isevent)
                                    gp_log (GP_LOG_DEBUG, "ptp", "evdata: L=0x%X, T=0x%X, C=0x%X, trans_id=0x%X, p1=0x%X, p2=0x%X, p3=0x%X\n", usbevent.length,usbevent.type,usbevent.code,usbevent.trans_id, usbevent.param1, usbevent.param2, usbevent.param3);
                        }


                        ret = ptp_canon_reflectchanges(params,7);
                        break;
                  }
            }
            /* Catch event, attempt  2 */
            if (val16!=PTP_RC_OK) {
                  if (PTP_RC_OK==ptp_usb_event_wait (params, &event)) {
                        if (event.Code==PTP_EC_CaptureComplete)
                              printf("Event: capture complete. \n");
                        else
                              printf("Event: 0x%X\n", event.Code);
                  } else
                        printf("No expected capture complete event\n");
            }
            if (i==100)
                gp_log (GP_LOG_DEBUG, "ptp","ERROR: Capture timed out!\n");        
            goto out;
      }

      if (!ptp_operation_issupported(&camera->pl->params,
            PTP_OC_InitiateCapture)) {
            gp_context_error(context,
                  _("Sorry, your camera does not support generic capture"));
            return GP_ERROR_NOT_SUPPORTED;
      }

      /* A capture may take longer than the standard 8 seconds.
       * The G5 for instance does, or in dark rooms ...
       * Even 16 seconds might not be enough. (Marcus)
       */
      /* ptp_initiatecapture() returns immediately, only the event
       * indicating that the capure has been completed may occur after
       * few seconds. moving down the code. (kil3r)
       */
      CPR(context,ptp_initiatecapture(&camera->pl->params, 0x00000000, 0x00000000));
      CR (gp_port_set_timeout (camera->port, USB_TIMEOUT_CAPTURE));
      /* A word of comments is worth here.
       * After InitiateCapture camera should report with ObjectAdded event
       * all newly created objects. However there might be more than one
       * newly created object. There a two scenarios here, which may occur
       * both at the time.
       * 1) InitiateCapture trigers capture of more than one object if the
       * camera is in burst mode for example.
       * 2) InitiateCapture creates a number of objects, but not all
       * objects represents images. This happens when the camera creates a
       * folder for newly captured image(s). This may happen with the
       * fresh, formatted flashcard or in burs mode if the camera is
       * configured to create a dedicated folder for a burst of pictures.
       * The newly created folder (an association object) is reported
       * before the images that are stored after its creation.
       * Thus we set CameraFilePath to the path to last object reported by
       * the camera.
       */
      /* I hate workarounds! Nikon is not 100% PTP compatible here! */
      if (camera->pl->params.deviceinfo.VendorExtensionID==PTP_VENDOR_NIKON) 
            goto out;
      {
            short ret;
            ret=ptp_usb_event_wait(&camera->pl->params,&event);
            CR (gp_port_set_timeout (camera->port, USB_TIMEOUT));
            if (ret!=PTP_RC_OK) goto err;
      }
      while (event.Code==PTP_EC_ObjectAdded) {
            /* add newly created object to internal structures */
            add_object (camera, event.Param1, context);
            newobject = event.Param1;

            if (ptp_usb_event_wait(&camera->pl->params, &event)!=PTP_RC_OK)
            {
                  gp_context_error (context,
                  _("Capture command completed, but no confirmation received"));
                  goto err;
            }
      } 
      if (event.Code==PTP_EC_CaptureComplete) 
            goto out;

      gp_context_error (context,_("Received event 0x%04x"),event.Code);

err:
      /* we're not setting *path on error! */
      return GP_ERROR;

out:
      /* clear path, so we get defined results even without object info */
      path->name[0]='\0';
      path->folder[0]='\0';

      if (newobject != 0) {
            int i;

            for (i = camera->pl->params.handles.n ; i--; ) {
                  PTPObjectInfo     *obinfo;

                  if (camera->pl->params.handles.Handler[i] != newobject)
                        continue;
                  obinfo = &camera->pl->params.objectinfo[i];
                  strcpy  (path->name,  obinfo->Filename);
                  sprintf (path->folder,"/"STORAGE_FOLDER_PREFIX"%08lx/",(unsigned long)obinfo->StorageID);
                  get_folder_from_handle (camera, obinfo->StorageID, obinfo->ParentObject, path->folder);
                  /* delete last / or we get confused later. */
                  path->folder[ strlen(path->folder)-1 ] = '\0';
                  CR (gp_filesystem_append (camera->fs, path->folder,
                        path->name, context));
                  break;
            }
      }
      return GP_OK;
}

static void
_value_to_str(PTPPropertyValue *data, uint16_t dt, char *txt) {
      if (dt == PTP_DTC_STR) {
            sprintf (txt, "'%s'", data->str);
            return;
      }
      if (dt & PTP_DTC_ARRAY_MASK) {
            int i;

            sprintf (txt, "a[%d] ", data->a.count);
            txt += strlen(txt);
            for ( i=0; i<data->a.count; i++) {
                  _value_to_str(&data->a.v[i], dt & ~PTP_DTC_ARRAY_MASK, txt);
                  txt += strlen(txt);
                  if (i!=data->a.count-1) {
                        sprintf (txt, ",");
                        txt++;
                  }
            }
      } else {
            switch (dt) {
            case PTP_DTC_UNDEF: 
                  sprintf (txt, "Undefined");
                  break;
            case PTP_DTC_INT8:
                  sprintf (txt, "%d", data->i8);
                  break;
            case PTP_DTC_UINT8:
                  sprintf (txt, "%u", data->u8);
                  break; 
            case PTP_DTC_INT16:
                  sprintf (txt, "%d", data->i16);
                  break;
            case PTP_DTC_UINT16:
                  sprintf (txt, "%u", data->u16);
                  break;
            case PTP_DTC_INT32:
                  sprintf (txt, "%d", data->i32);
                  break;
            case PTP_DTC_UINT32:
                  sprintf (txt, "%u", data->u32);
                  break;
      /*
            PTP_DTC_INT64           
            PTP_DTC_UINT64         
            PTP_DTC_INT128        
            PTP_DTC_UINT128      
      */
            default:
                  sprintf (txt, "Unknown %x", dt);
                  break;
            }
      }
      return;
}

static const char *
_get_getset(uint8_t gs) {
      switch (gs) {
      case PTP_DPGS_Get: return N_("read only");
      case PTP_DPGS_GetSet: return N_("readwrite");
      default: return N_("Unknown");
      }
      return N_("Unknown");
}

static int
canon_theme_get (CameraFilesystem *fs, const char *folder, const char *filename,
             CameraFileType type, CameraFile *file, void *data,
             GPContext *context)
{
      uint16_t    res;
      Camera            *camera = (Camera*)data;
      PTPParams   *params = &camera->pl->params;
      char        *xdata;
      unsigned int      size;

      ((PTPData *) camera->pl->params.data)->context = context;

      res = ptp_canon_theme_download (params, 1, &xdata, &size);
      if (res != PTP_RC_OK)  {
            report_result(context, res);
            return (translate_ptp_result(res));
      }
      CR (gp_file_set_data_and_size (file, xdata, size));
      return (GP_OK);
}

static int
canon_theme_put (CameraFilesystem *fs, const char *folder, CameraFile *file,
            void *data, GPContext *context)
{
      /* not yet */
      return (GP_OK);
}

static int
camera_summary (Camera* camera, CameraText* summary, GPContext *context)
{
      int n, i, j;
      char *txt;
      PTPParams *params = &(camera->pl->params);
      PTPDeviceInfo pdi;

      n = snprintf (summary->text, sizeof (summary->text),
            _("Model: %s\n"
            "  device version: %s\n"
            "  serial number:  %s\n"
            "Vendor extension ID: 0x%08x\n"
            "Vendor extension description: %s\n"
      ),
            camera->pl->params.deviceinfo.Model,
            camera->pl->params.deviceinfo.DeviceVersion,
            camera->pl->params.deviceinfo.SerialNumber,
            camera->pl->params.deviceinfo.VendorExtensionID,
            camera->pl->params.deviceinfo.VendorExtensionDesc);

      if (n>=sizeof (summary->text))
            return GP_OK;

      txt = summary->text + strlen (summary->text);

      /* The information is cached. However, the canon firmware changes
       * the available properties in capture mode.
       */
      CPR(context, ptp_getdeviceinfo(&camera->pl->params, &pdi));

        for (i=0;i<pdi.DevicePropertiesSupported_len;i++) {
            PTPDevicePropDesc dpd;
            unsigned int dpc = pdi.DevicePropertiesSupported[i];
            const char *propname = ptp_get_property_description (params, dpc);

            if (propname) {
                  /* string registered for i18n in ptp.c. */
                  sprintf(txt, "%s(0x%04x):", _(propname), dpc);
            } else {
                  sprintf(txt, "Property 0x%04x:", dpc);
            }
            txt = txt+strlen(txt);
            
            memset (&dpd, 0, sizeof (dpd));
            ptp_getdevicepropdesc (params, dpc, &dpd);

            sprintf (txt, "(%s) ",_get_getset(dpd.GetSet));txt += strlen (txt);
            sprintf (txt, "(type=0x%x) ",dpd.DataType);txt += strlen (txt);
            switch (dpd.FormFlag) {
            case PTP_DPFF_None:     break;
            case PTP_DPFF_Range: {
                  sprintf (txt, "Range [");txt += strlen(txt);
                  _value_to_str (&dpd.FORM.Range.MinimumValue, dpd.DataType, txt);
                  txt += strlen(txt);
                  sprintf (txt, " - ");txt += strlen(txt);
                  _value_to_str (&dpd.FORM.Range.MaximumValue, dpd.DataType, txt);
                  txt += strlen(txt);
                  sprintf (txt, ", step ");txt += strlen(txt);
                  _value_to_str (&dpd.FORM.Range.StepSize, dpd.DataType, txt);
                  txt += strlen(txt);
                  sprintf (txt, "] value: ");txt += strlen(txt);
                  txt += strlen(txt);
                  break;
            }
            case PTP_DPFF_Enumeration:
                  sprintf (txt, "Enumeration [");txt += strlen(txt);
                  if ((dpd.DataType & PTP_DTC_ARRAY_MASK) == PTP_DTC_ARRAY_MASK)  {
                        sprintf (txt, "\n\t");txt += strlen(txt);
                  }
                  for (j = 0; j<dpd.FORM.Enum.NumberOfValues; j++) {
                        _value_to_str(dpd.FORM.Enum.SupportedValue+j,dpd.DataType,txt);
                        txt += strlen(txt);
                        if (j != dpd.FORM.Enum.NumberOfValues-1) {
                              sprintf (txt, ",");txt += strlen(txt);
                              if ((dpd.DataType & PTP_DTC_ARRAY_MASK) == PTP_DTC_ARRAY_MASK)  {
                                    sprintf (txt, "\n\t");txt += strlen(txt);
                              }
                        }
                  }
                  if ((dpd.DataType & PTP_DTC_ARRAY_MASK) == PTP_DTC_ARRAY_MASK)  {
                        sprintf (txt, "\n\t");txt += strlen(txt);
                  }
                  sprintf (txt, "] value: ");txt += strlen(txt);
                  break;
            }
            txt += strlen (txt);
            ptp_render_property_value(params, dpc, &dpd, sizeof(summary->text) - strlen(summary->text) - 1, txt);
            if (strlen(txt)) {
                  txt += strlen (txt);
                  sprintf(txt, " (");
                  txt+=2;
                  _value_to_str (&dpd.CurrentValue, dpd.DataType, txt);
                  txt += strlen (txt);
                  sprintf(txt, ")");
                  txt++;
            } else {
                  _value_to_str (&dpd.CurrentValue, dpd.DataType, txt);
            }
            txt += strlen(txt);
            sprintf(txt,"\n");
            txt += strlen(txt);
        }
      return (GP_OK);
}

static int
have_prop(Camera *camera, uint16_t vendor, uint16_t prop) {
      int i;

      /* prop 0 matches */
      if (!prop && (camera->pl->params.deviceinfo.VendorExtensionID==vendor))
            return 1;

      for (i=0; i<camera->pl->params.deviceinfo.DevicePropertiesSupported_len; i++) {
            if (prop != camera->pl->params.deviceinfo.DevicePropertiesSupported[i])
                  continue;
            if ((prop & 0xf000) == 0x5000) /* generic property */
                  return 1;
            if (camera->pl->params.deviceinfo.VendorExtensionID==vendor)
                  return 1;
      }
      return 0;
}

struct submenu;
typedef int (*get_func)(Camera *camera, CameraWidget **widget, struct submenu* menu, PTPDevicePropDesc *dpd);
typedef int (*put_func)(Camera *camera, CameraWidget *widget, PTPPropertyValue *propval);

struct submenu {
      char        *label;
      char        *name;
      uint16_t    propid;
      uint16_t    vendorid;
      uint16_t    type;
      get_func    getfunc;
      put_func    putfunc;
};

struct menu {
      char        *label;
      char        *name;
      struct      submenu     *submenus;
};

struct deviceproptableu8 {
      char        *label;
      uint8_t           value;
      uint16_t    vendor_id;
};

struct deviceproptableu16 {
      char        *label;
      uint16_t    value;
      uint16_t    vendor_id;
};


static int
_get_AUINT8_as_CHAR_ARRAY(Camera* camera, CameraWidget **widget, struct submenu *menu, PTPDevicePropDesc *dpd) {
      int   j;
      char  value[128];

      gp_widget_new (GP_WIDGET_TEXT, _(menu->label), widget);
      gp_widget_set_name (*widget, menu->name);
      if (dpd->DataType != PTP_DTC_AUINT8) {
            sprintf (value,_("unexpected datatype %i"),dpd->DataType);
      } else {
            memset(value,0,sizeof(value));
            for (j=0;j<dpd->CurrentValue.a.count;j++)
                  value[j] = dpd->CurrentValue.a.v[j].u8;
      }
      gp_widget_set_value (*widget,value);
      return (GP_OK);
}

static int
_get_STR(Camera* camera, CameraWidget **widget, struct submenu *menu, PTPDevicePropDesc *dpd) {
      char value[64];

      gp_widget_new (GP_WIDGET_TEXT, _(menu->label), widget);
      gp_widget_set_name (*widget, menu->name);
      if (dpd->DataType != PTP_DTC_STR) {
            sprintf (value,_("unexpected datatype %i"),dpd->DataType);
            gp_widget_set_value (*widget,value);
      } else {
            gp_widget_set_value (*widget,dpd->CurrentValue.str);
      }
      return (GP_OK);
}

static int
_put_STR(Camera* camera, CameraWidget *widget, PTPPropertyValue *propval) {
        const char *string;
        int ret;
        ret = gp_widget_get_value (widget,&string);
        if (ret != GP_OK)
                return ret;
        propval->str = strdup (string);
        return (GP_OK);
}

static int
_put_AUINT8_as_CHAR_ARRAY(Camera* camera, CameraWidget *widget, PTPPropertyValue *propval) {
      char  *value;
      int   i, ret;

      ret = gp_widget_get_value (widget, &value);
      if (ret != GP_OK)
            return ret;
      memset(propval,0,sizeof(PTPPropertyValue));
      /* add \0 ? */
      propval->a.v = malloc((strlen(value)+1)*sizeof(PTPPropertyValue));
      propval->a.count = strlen(value)+1;
      for (i=0;i<strlen(value)+1;i++)
            propval->a.v[i].u8 = value[i];
      return (GP_OK);
}

#if 0
static int
_get_Range_INT8(Camera* camera, CameraWidget **widget, struct submenu *menu, PTPDevicePropDesc *dpd) {
      float CurrentValue;
      
      gp_widget_new (GP_WIDGET_RANGE, _(menu->label), widget);
      gp_widget_set_name ( *widget, menu->name);
      if (dpd->FormFlag != PTP_DPFF_Range)
            return (GP_ERROR_NOT_SUPPORTED);
      if (dpd->DataType != PTP_DTC_INT8)
            return (GP_ERROR_NOT_SUPPORTED);
      CurrentValue = (float) dpd->CurrentValue.i8;
      gp_widget_set_range ( *widget, (float) dpd->FORM.Range.MinimumValue.i8, (float) dpd->FORM.Range.MaximumValue.i8, (float) dpd->FORM.Range.StepSize.i8);
      gp_widget_set_value ( *widget, &CurrentValue);
      return (GP_OK);
}


static int
_put_Range_INT8(Camera* camera, CameraWidget *widget, PTPPropertyValue *propval) {
      int ret;
      float f;
      ret = gp_widget_get_value (widget, &f);
      if (ret != GP_OK) 
            return ret;
      propval->i8 = (int) f;
      return (GP_OK);
}
#endif

static int
_get_Nikon_OnOff_UINT8(Camera* camera, CameraWidget **widget, struct submenu *menu, PTPDevicePropDesc *dpd) {
      gp_widget_new (GP_WIDGET_RADIO, _(menu->label), widget);
      gp_widget_set_name ( *widget, menu->name);
      if (dpd->FormFlag != PTP_DPFF_Range)
                return (GP_ERROR_NOT_SUPPORTED);
        if (dpd->DataType != PTP_DTC_UINT8)
                return (GP_ERROR_NOT_SUPPORTED);
      gp_widget_add_choice (*widget,_("On"));
      gp_widget_add_choice (*widget,_("Off"));
      gp_widget_set_value ( *widget, (dpd->CurrentValue.u8?_("On"):_("Off")));
      return (GP_OK);
}

static int
_put_Nikon_OnOff_UINT8(Camera* camera, CameraWidget *widget, PTPPropertyValue *propval) {
      int ret;
      char *value;

      ret = gp_widget_get_value (widget, &value);
      if (ret != GP_OK) 
            return ret;
      if(!strcmp(value,_("On"))) {
            propval->u8 = 1;
            return (GP_OK);
      }
      if(!strcmp(value,_("Off"))) {
            propval->u8 = 0;
            return (GP_OK);
      }
      return (GP_ERROR);
}

static int
_get_UINT32_as_MB(Camera* camera, CameraWidget **widget, struct submenu *menu, PTPDevicePropDesc *dpd) {
      char value[64];

      gp_widget_new (GP_WIDGET_TEXT, _(menu->label), widget);
      gp_widget_set_name (*widget, menu->name);
      if (dpd->DataType != PTP_DTC_UINT32) {
            sprintf (value,_("unexpected datatype %i"),dpd->DataType);
      } else {
            sprintf (value,"%i",dpd->CurrentValue.u32/1024/1024);
      }
      gp_widget_set_value (*widget,value);
      return (GP_OK);
}

static struct deviceproptableu16 whitebalance[] = {
      { N_("Manual"), 0x0001, 0 },
      { N_("Automatic"), 0x0002, 0 },
      { N_("One-push Automatic"), 0x0003, 0 },
      { N_("Daylight"), 0x0004, 0 },
      { N_("Fluorescent"), 0x0005, 0 },
      { N_("Tungsten"), 0x0006, 0 },
      { N_("Flash"), 0x0007, 0 },
      { N_("Cloudy"), 0x8010, PTP_VENDOR_NIKON },
      { N_("Shade"), 0x8011, PTP_VENDOR_NIKON },
      { N_("Preset"), 0x8013, PTP_VENDOR_NIKON },
      { NULL },
};


static int
_get_WhiteBalance (Camera* camera, CameraWidget **widget, struct submenu *menu, PTPDevicePropDesc *dpd) {
      int i, j, value=-1;
      gp_widget_new (GP_WIDGET_MENU, _(menu->label), widget);
      gp_widget_set_name (*widget, menu->name);
      if (!(dpd->FormFlag & PTP_DPFF_Enumeration))
            return(GP_ERROR);
      if (dpd->DataType != PTP_DTC_UINT16)
            return(GP_ERROR);
      /* Run through all the supported values and all the values known to
         the camera, and see which values that matches */
      for (j=0;j<dpd->FORM.Enum.NumberOfValues; j++) {
            for (i=0;whitebalance[i].label;i++) {
                  if ((dpd->FORM.Enum.SupportedValue[j].u16 == whitebalance[i].value) && ((whitebalance[i].vendor_id == 0) || (whitebalance[i].vendor_id == camera->pl->params.deviceinfo.VendorExtensionID))) {
                        gp_widget_add_choice (*widget, _(whitebalance[i].label));
                        /* Might as well take note here if this value
                        is the one currently set. */
                        if (dpd->CurrentValue.u16 == whitebalance[i].value)
                              value = i;
                        /* Make sure at least a known value is set
                           as chosen initially */
                        if (value==-1)
                              value = i;
                  }
            }
      }
      if (value>=0)
            gp_widget_set_value ( *widget, _(whitebalance[value].label));
      return GP_OK;
}

static int
_put_WhiteBalance(Camera* camera, CameraWidget *widget, PTPPropertyValue *propval) {
      int i;
      char *value;
      int ret;
      int retval = -1;

      ret = gp_widget_get_value (widget, &value);
      if(ret != GP_OK)
            return ret;
      for (i=0; (whitebalance[i].label && (retval<0));i++) {
            if (!strcmp ( _(whitebalance[i].label),value))
                  retval = i;
      }
      if (retval>=0) 
            propval->u16 = whitebalance[retval].value;
      else
            return GP_ERROR;
      return GP_OK;
}
      
/* Everything is camera specific. */
static struct deviceproptableu8 compression[] = {
      { N_("JPEG Basic"), 0x00, PTP_VENDOR_NIKON },
      { N_("JPEG Normal"), 0x01, PTP_VENDOR_NIKON },
      { N_("JPEG Fine"), 0x02, PTP_VENDOR_NIKON },
      { N_("NEF (Raw)"), 0x04, PTP_VENDOR_NIKON },
      { N_("NEF+BASIC"), 0x05, PTP_VENDOR_NIKON },
      { NULL },
};

static int
_get_Compression (Camera* camera, CameraWidget **widget, struct submenu *menu, PTPDevicePropDesc *dpd) {
      int i, j, value=-1;
      gp_widget_new (GP_WIDGET_MENU, _(menu->label), widget);
      gp_widget_set_name (*widget, menu->name);
      if (!(dpd->FormFlag & PTP_DPFF_Enumeration))
            return(GP_ERROR);
      if (dpd->DataType != PTP_DTC_UINT8)
            return(GP_ERROR);
      /* Run through all the supported values and all the values known to
         the camera, and see which values that matches */
      for (j=0;j<dpd->FORM.Enum.NumberOfValues; j++) {
            for (i=0;compression[i].label;i++) {
                  if ((dpd->FORM.Enum.SupportedValue[j].u8 == compression[i].value) && ((compression[i].vendor_id == 0) || (compression[i].vendor_id == camera->pl->params.deviceinfo.VendorExtensionID))) {
                        gp_widget_add_choice (*widget, _(compression[i].label));
                        /* Might as well take note here if this value
                        is the one currently set. */
                        if (dpd->CurrentValue.u8 == compression[i].value)
                              value = i;
                        /* Make sure at least a known value is set
                           as chosen initially */
                        if (value==-1)
                              value = i;
                  }
            }
      }
      if (value>=0)
            gp_widget_set_value ( *widget, _(compression[value].label));
      return GP_OK;
}

static int
_put_Compression(Camera* camera, CameraWidget *widget, PTPPropertyValue *propval) {
      int i;
      char *value;
      int ret;
      int retval = -1;

      ret = gp_widget_get_value (widget, &value);
      if(ret != GP_OK)
            return ret;
      for (i=0; (compression[i].label && (retval<0));i++) {
            if (!strcmp ( _(compression[i].label),value))
                  retval = i;
      }
      if (retval>=0) 
            propval->u8 = compression[retval].value;
      else
            return GP_ERROR;
      return GP_OK;
}

static int
_get_ImageSize(Camera* camera, CameraWidget **widget, struct submenu *menu, PTPDevicePropDesc *dpd) {
        int j;

        gp_widget_new (GP_WIDGET_MENU, _(menu->label), widget);
        gp_widget_set_name (*widget, menu->name);
        if (!(dpd->FormFlag & PTP_DPFF_Enumeration))
                return(GP_ERROR);
        if (dpd->DataType != PTP_DTC_STR)
                return(GP_ERROR);
        for (j=0;j<dpd->FORM.Enum.NumberOfValues; j++) {
                gp_widget_add_choice (*widget,dpd->FORM.Enum.SupportedValue[j].str);
        }
        gp_widget_set_value (*widget,dpd->CurrentValue.str);
        return GP_OK;
}

static int
_put_ImageSize(Camera* camera, CameraWidget *widget, PTPPropertyValue *propval) {
        char *value;
        int ret;

        ret = gp_widget_get_value (widget,&value);
        if(ret != GP_OK)
                return ret;
        propval->str = strdup (value);
        return(GP_OK);
}


static int
_get_Canon_AssistLight(Camera* camera, CameraWidget **widget, struct submenu *menu, PTPDevicePropDesc *dpd) {
      gp_widget_new (GP_WIDGET_RADIO, _(menu->label), widget);
      gp_widget_set_name (*widget, menu->name);
      if (!(dpd->FormFlag & PTP_DPFF_Enumeration))
            return (GP_ERROR);
      if (dpd->DataType != PTP_DTC_UINT16)
            return (GP_ERROR);
      gp_widget_add_choice (*widget,_("On"));
      gp_widget_add_choice (*widget,_("Off"));
      gp_widget_set_value (*widget,(dpd->CurrentValue.u16?_("On"):_("Off")));
      return (GP_OK);
}

static int
_put_Canon_AssistLight(Camera* camera, CameraWidget *widget, PTPPropertyValue *propval) {
      char *value;
      int ret;

      ret = gp_widget_get_value (widget, &value);
      if (ret != GP_OK)
            return ret;
      if (!strcmp (value, _("On"))) {
            propval->u16 = 1;
            return (GP_OK);
      }
      if (!strcmp (value, _("Off"))) {
            propval->u16 = 0;
            return (GP_OK);
      }
      return (GP_ERROR);
}

static int
_get_Canon_BeepMode(Camera* camera, CameraWidget **widget, struct submenu *menu, PTPDevicePropDesc *dpd) {
      gp_widget_new (GP_WIDGET_RADIO, _(menu->label), widget);
      gp_widget_set_name (*widget, menu->name);
      if (!(dpd->FormFlag & PTP_DPFF_Enumeration))
            return (GP_ERROR);
      if (dpd->DataType != PTP_DTC_UINT8)
            return (GP_ERROR);
      gp_widget_add_choice (*widget,_("On"));
      gp_widget_add_choice (*widget,_("Off"));
      gp_widget_set_value (*widget,(dpd->CurrentValue.u8?_("On"):_("Off")));
      return (GP_OK);
}

static int
_put_Canon_BeepMode(Camera* camera, CameraWidget *widget, PTPPropertyValue *propval) {
      char *value;
      int ret;

      ret = gp_widget_get_value (widget, &value);
      if (ret != GP_OK)
            return ret;
      if (!strcmp (value, _("On"))) {
            propval->u8 = 1;
            return (GP_OK);
      }
      if (!strcmp (value, _("Off"))) {
            propval->u8 = 0;
            return (GP_OK);
      }
      return (GP_ERROR);
}

static int
_get_Canon_ZoomRange(Camera* camera, CameraWidget **widget, struct submenu *menu, PTPDevicePropDesc *dpd) {
      float f, t, b, s;

      gp_widget_new (GP_WIDGET_RANGE, _(menu->label), widget);
      gp_widget_set_name (*widget,menu->name);
      f = (float)dpd->CurrentValue.u16;
      if (!(dpd->FormFlag & PTP_DPFF_Range))
            return (GP_ERROR);
      b = (float)dpd->FORM.Range.MinimumValue.u16;
      t = (float)dpd->FORM.Range.MaximumValue.u16;
      s = (float)dpd->FORM.Range.StepSize.u16;
      gp_widget_set_range (*widget, b, t, s);
      gp_widget_set_value (*widget, &f);
      return (GP_OK);
}

static int
_put_Canon_ZoomRange(Camera* camera, CameraWidget *widget, PTPPropertyValue *propval)
{
      float f;
      int   ret;

      f = 0.0;
      ret = gp_widget_get_value (widget,&f);
      if (ret != GP_OK) return ret;
      propval->u16 = (unsigned short)f;
      return (GP_OK);
}

static struct deviceproptableu8 canon_quality[] = {
      { N_("normal"),         0x02, 0 },
      { N_("fine"),           0x03, 0 },
      { N_("super fine"),     0x05, 0 },
      { NULL },
};

static int
_get_Canon_Quality(Camera* camera, CameraWidget **widget, struct submenu *menu, PTPDevicePropDesc *dpd) {
      int i;

      gp_widget_new (GP_WIDGET_RADIO, _(menu->label), widget);
      gp_widget_set_name (*widget, menu->name);
      if (!(dpd->FormFlag & PTP_DPFF_Enumeration))
            return (GP_ERROR);
      if (dpd->DataType != PTP_DTC_UINT8)
            return (GP_ERROR);
      for (i=0;i<sizeof (canon_quality)/sizeof (canon_quality[0]);i++) {
            gp_widget_add_choice (*widget, _(canon_quality[i].label));
            if (canon_quality[i].value == dpd->CurrentValue.u8)
                  gp_widget_set_value (*widget, _(canon_quality[i].label));
      }
      return (GP_OK);
}

static int
_put_Canon_Quality(Camera* camera, CameraWidget *widget, PTPPropertyValue *propval) {
      char *value;
      int i, ret;

      ret = gp_widget_get_value (widget, &value);
      if (ret != GP_OK)
            return ret;
      for (i=0;i<sizeof (canon_quality)/sizeof (canon_quality[0]);i++) {
            if (!strcmp (value, _(canon_quality[i].label))) {
                  propval->u8 = canon_quality[i].value;
                  return (GP_OK);
            }
      }
      return (GP_ERROR);
}

static struct deviceproptableu8 canon_flash[] = {
      { N_("off"),      0, 0 },
      { N_("auto"),     1, 0 },
      { N_("on"), 2, 0 },
      { N_("auto red eye"), 5, 0 },
      { N_("on red eye"), 6, 0 },
};

static int
_get_Canon_FlashMode(Camera* camera, CameraWidget **widget, struct submenu *menu, PTPDevicePropDesc *dpd) {
      int i;

      gp_widget_new (GP_WIDGET_RADIO, _(menu->label), widget);
      gp_widget_set_name (*widget, menu->name);
      if (!(dpd->FormFlag & PTP_DPFF_Enumeration))
            return (GP_ERROR);
      if (dpd->DataType != PTP_DTC_UINT8)
            return (GP_ERROR);
      for (i=0;i<sizeof (canon_flash)/sizeof (canon_flash[0]);i++) {
            gp_widget_add_choice (*widget, _(canon_flash[i].label));
            if (canon_flash[i].value == dpd->CurrentValue.u8)
                  gp_widget_set_value (*widget, _(canon_flash[i].label));
      }
      return (GP_OK);
}

static int
_put_Canon_FlashMode(Camera* camera, CameraWidget *widget, PTPPropertyValue *propval) {
      char *value;
      int i, ret;

      ret = gp_widget_get_value (widget, &value);
      if (ret != GP_OK)
            return ret;
      for (i=0;i<sizeof (canon_flash)/sizeof (canon_flash[0]);i++) {
            if (!strcmp (value, _(canon_flash[i].label))) {
                  propval->u8 = canon_flash[i].value;
                  return (GP_OK);
            }
      }
      return (GP_ERROR);
}

static struct deviceproptableu8 canon_meteringmode[] = {
      { "center weighted(?)", 0, 0 },
      { N_("spot"),           1, 0 },
      { "integral(?)",  3, 0 },
};

static int
_get_Canon_MeteringMode(Camera* camera, CameraWidget **widget, struct submenu *menu, PTPDevicePropDesc *dpd) {
      int i;

      gp_widget_new (GP_WIDGET_RADIO, _(menu->label), widget);
      gp_widget_set_name (*widget, menu->name);
      if (!(dpd->FormFlag & PTP_DPFF_Enumeration))
            return (GP_ERROR);
      if (dpd->DataType != PTP_DTC_UINT8)
            return (GP_ERROR);
      for (i=0;i<sizeof (canon_meteringmode)/sizeof (canon_meteringmode[0]);i++) {
            gp_widget_add_choice (*widget, _(canon_meteringmode[i].label));
            if (canon_meteringmode[i].value == dpd->CurrentValue.u8)
                  gp_widget_set_value (*widget, _(canon_meteringmode[i].label));
      }
      return (GP_OK);
}

static int
_put_Canon_MeteringMode(Camera* camera, CameraWidget *widget, PTPPropertyValue *propval) {
      char *value;
      int i, ret;

      ret = gp_widget_get_value (widget, &value);
      if (ret != GP_OK)
            return ret;
      for (i=0;i<sizeof (canon_meteringmode)/sizeof (canon_meteringmode[0]);i++) {
            if (!strcmp (value, _(canon_meteringmode[i].label))) {
                  propval->u8 = canon_meteringmode[i].value;
                  return (GP_OK);
            }
      }
      return (GP_ERROR);
}

static struct deviceproptableu16 canon_shutterspeed[] = {
      {  "auto",0x0000,0 },
      {  "15\"",0x0018,0 },
      {  "13\"",0x001b,0 },
      {  "10\"",0x001d,0 },
      {  "8\"",0x0020,0 },
      {  "6\"",0x0023,0 },
      {  "5\"",0x0025,0 },
      {  "4\"",0x0028,0 },
      {  "3\"2",0x002b,0 },
      {  "2\"5",0x002d,0 },
      {  "2\"",0x0030,0 },
      {  "1\"6",0x0033,0 },
      {  "1\"3",0x0035,0 },
      {  "1\"",0x0038,0 },
      {  "0\"8",0x003b,0 },
      {  "0\"6",0x003d,0 },
      {  "0\"5",0x0040,0 },
      {  "0\"4",0x0043,0 },
      {  "0\"3",0x0045,0 },
      {  "1/4",0x0048,0 },
      {  "1/5",0x004b,0 },
      {  "1/6",0x004d,0 },
      {  "1/8",0x0050,0 },
      {  "1/10",0x0053,0 },
      {  "1/13",0x0055,0 },
      {  "1/15",0x0058,0 },
      {  "1/20",0x005b,0 },
      {  "1/25",0x005d,0 },
      {  "1/30",0x0060,0 },
      {  "1/40",0x0063,0 },
      {  "1/50",0x0065,0 },
      {  "1/60",0x0068,0 },
      {  "1/80",0x006b,0 },
      {  "1/100",0x006d,0 },
      {  "1/125",0x0070,0 },
      {  "1/160",0x0073,0 },
      {  "1/200",0x0075,0 },
      {  "1/250",0x0078,0 },
      {  "1/320",0x007b,0 },
      {  "1/400",0x007d,0 },
      {  "1/500",0x0080,0 },
      {  "1/640",0x0083,0 },
      {  "1/800",0x0085,0 },
      {  "1/1000",0x0088,0 },
      {  "1/1250",0x008b,0 },
      {  "1/1600",0x008d,0 },
      {  "1/2000",0x0090,0 },
};

static int
_get_Canon_ShutterSpeed(Camera* camera, CameraWidget **widget, struct submenu *menu, PTPDevicePropDesc *dpd) {
      int i;

      gp_widget_new (GP_WIDGET_RADIO, _(menu->label), widget);
      gp_widget_set_name (*widget, menu->name);
      if (!(dpd->FormFlag & PTP_DPFF_Enumeration))
            return (GP_ERROR);
      if (dpd->DataType != PTP_DTC_UINT16)
            return (GP_ERROR);
      for (i=0;i<sizeof (canon_shutterspeed)/sizeof (canon_shutterspeed[0]);i++) {
            gp_widget_add_choice (*widget, _(canon_shutterspeed[i].label));
            if (canon_shutterspeed[i].value == dpd->CurrentValue.u16)
                  gp_widget_set_value (*widget, _(canon_shutterspeed[i].label));
      }
      return (GP_OK);
}

static int
_put_Canon_ShutterSpeed(Camera* camera, CameraWidget *widget, PTPPropertyValue *propval) {
      char *value;
      int i, ret;

      ret = gp_widget_get_value (widget, &value);
      if (ret != GP_OK)
            return ret;
      for (i=0;i<sizeof (canon_shutterspeed)/sizeof (canon_shutterspeed[0]);i++) {
            if (!strcmp (value, _(canon_shutterspeed[i].label))) {
                  propval->u16 = canon_shutterspeed[i].value;
                  return (GP_OK);
            }
      }
      return (GP_ERROR);
}

static struct deviceproptableu16 canon_focuspoints[] = {
      { N_("center"),   0x3003, 0 },
      { N_("auto"),     0x3001, 0 },
};

static int
_get_Canon_FocusingPoint(Camera* camera, CameraWidget **widget, struct submenu *menu, PTPDevicePropDesc *dpd) {
      int i;

      gp_widget_new (GP_WIDGET_RADIO, _(menu->label), widget);
      gp_widget_set_name (*widget, menu->name);
      if (!(dpd->FormFlag & PTP_DPFF_Enumeration))
            return (GP_ERROR);
      if (dpd->DataType != PTP_DTC_UINT16)
            return (GP_ERROR);
      for (i=0;i<sizeof (canon_focuspoints)/sizeof (canon_focuspoints[0]);i++) {
            gp_widget_add_choice (*widget, _(canon_focuspoints[i].label));
            if (canon_focuspoints[i].value == dpd->CurrentValue.u16)
                  gp_widget_set_value (*widget, _(canon_focuspoints[i].label));
      }
      return (GP_OK);
}

static int
_put_Canon_FocusingPoint(Camera* camera, CameraWidget *widget, PTPPropertyValue *propval) {
      char *value;
      int i, ret;

      ret = gp_widget_get_value (widget, &value);
      if (ret != GP_OK)
            return ret;
      for (i=0;i<sizeof (canon_focuspoints)/sizeof (canon_focuspoints[0]);i++) {
            if (!strcmp (value, _(canon_focuspoints[i].label))) {
                  propval->u16 = canon_focuspoints[i].value;
                  return (GP_OK);
            }
      }
      return (GP_ERROR);
}

static struct deviceproptableu8 canon_size[] = {
      { N_("large"),          0x00, 0 },
      { N_("medium 1"), 0x01, 0 },
      { N_("medium 2"), 0x03, 0 },
      { N_("small"),          0x02, 0 },
      { NULL },
};

static int
_get_Canon_Size(Camera* camera, CameraWidget **widget, struct submenu *menu, PTPDevicePropDesc *dpd) {
      int i;

      gp_widget_new (GP_WIDGET_RADIO, _(menu->label), widget);
      gp_widget_set_name (*widget, menu->name);
      if (!(dpd->FormFlag & PTP_DPFF_Enumeration))
            return (GP_ERROR);
      if (dpd->DataType != PTP_DTC_UINT8)
            return (GP_ERROR);
      for (i=0;i<sizeof (canon_size)/sizeof (canon_size[0]);i++) {
            gp_widget_add_choice (*widget, _(canon_size[i].label));
            if (canon_size[i].value == dpd->CurrentValue.u8)
                  gp_widget_set_value (*widget, _(canon_size[i].label));
      }
      return (GP_OK);
}

static int
_put_Canon_Size(Camera* camera, CameraWidget *widget, PTPPropertyValue *propval) {
      char *value;
      int i, ret;

      ret = gp_widget_get_value (widget, &value);
      if (ret != GP_OK)
            return ret;
      for (i=0;i<sizeof (canon_size)/sizeof (canon_size[0]);i++) {
            if (!strcmp (value, _(canon_size[i].label))) {
                  propval->u8 = canon_size[i].value;
                  return (GP_OK);
            }
      }
      return (GP_ERROR);
}

static struct deviceproptableu16 canon_isospeed[] = {
      { N_("Factory Default"),0xffff, 0 },
      { "50",                 0x0040, 0 },
      { "100",          0x0048, 0 },
      { "200",          0x0050, 0 },
      { "400",          0x0058, 0 },
      { N_("Auto"),           0x0000, 0 },
};

static int
_get_Canon_ISO(Camera* camera, CameraWidget **widget, struct submenu *menu, PTPDevicePropDesc *dpd) {
      int i;

      gp_widget_new (GP_WIDGET_RADIO, _(menu->label), widget);
      gp_widget_set_name (*widget, menu->name);
      if (!(dpd->FormFlag & PTP_DPFF_Enumeration))
            return (GP_ERROR);
      if (dpd->DataType != PTP_DTC_UINT16)
            return (GP_ERROR);
      for (i=0;i<sizeof (canon_isospeed)/sizeof (canon_isospeed[0]);i++) {
            gp_widget_add_choice (*widget, _(canon_isospeed[i].label));
            if (canon_isospeed[i].value == dpd->CurrentValue.u16)
                  gp_widget_set_value (*widget, _(canon_isospeed[i].label));
      }
      return (GP_OK);
}

static int
_put_Canon_ISO(Camera* camera, CameraWidget *widget, PTPPropertyValue *propval) {
      char *value;
      int i, ret;

      ret = gp_widget_get_value (widget, &value);
      if (ret != GP_OK)
            return ret;
      for (i=0;i<sizeof (canon_isospeed)/sizeof (canon_isospeed[0]);i++) {
            if (!strcmp (value, _(canon_isospeed[i].label))) {
                  propval->u16 = canon_isospeed[i].value;
                  return (GP_OK);
            }
      }
      return (GP_ERROR);
}

static struct deviceproptableu8 canon_macromode[] = {
      { N_("Off"),            0x01, 0 },
      { N_("Macro"),          0x03, 0 },
      { N_("Long distance"),  0x07, 0 }, /* Unchecked. */
};

static int
_get_Canon_Macro(Camera* camera, CameraWidget **widget, struct submenu *menu, PTPDevicePropDesc *dpd) {
      int i;

      gp_widget_new (GP_WIDGET_RADIO, _(menu->label), widget);
      gp_widget_set_name (*widget, menu->name);
      if (!(dpd->FormFlag & PTP_DPFF_Enumeration))
            return (GP_ERROR);
      if (dpd->DataType != PTP_DTC_UINT8)
            return (GP_ERROR);
      for (i=0;i<sizeof (canon_macromode)/sizeof (canon_macromode[0]);i++) {
            gp_widget_add_choice (*widget, _(canon_macromode[i].label));
            if (canon_macromode[i].value == dpd->CurrentValue.u8)
                  gp_widget_set_value (*widget, _(canon_macromode[i].label));
      }
      return (GP_OK);
}

static int
_put_Canon_Macro(Camera* camera, CameraWidget *widget, PTPPropertyValue *propval) {
      char *value;
      int i, ret;

      ret = gp_widget_get_value (widget, &value);
      if (ret != GP_OK)
            return ret;
      for (i=0;i<sizeof (canon_macromode)/sizeof (canon_macromode[0]);i++) {
            if (!strcmp (value, _(canon_macromode[i].label))) {
                  propval->u8 = canon_macromode[i].value;
                  return (GP_OK);
            }
      }
      return (GP_ERROR);
}

static struct deviceproptableu8 canon_whitebalance[] = {
      { N_("Auto"),           0, 0 },
      { N_("Daylight"),       1, 0 },
      { N_("Cloudy"),         2, 0 },
      { N_("Tungsten"),       3, 0 },
      { N_("Fluorescent"),    4, 0 },
      { N_("Fluorescent H"),  7, 0 },
      { N_("Custom"),         6, 0 },
};

static int
_get_Canon_WhiteBalance(Camera* camera, CameraWidget **widget, struct submenu *menu, PTPDevicePropDesc *dpd) {
      int i;

      gp_widget_new (GP_WIDGET_RADIO, _(menu->label), widget);
      gp_widget_set_name (*widget, menu->name);
      if (!(dpd->FormFlag & PTP_DPFF_Enumeration))
            return (GP_ERROR);
      if (dpd->DataType != PTP_DTC_UINT8)
            return (GP_ERROR);
      for (i=0;i<sizeof (canon_whitebalance)/sizeof (canon_whitebalance[0]);i++) {
            gp_widget_add_choice (*widget, _(canon_whitebalance[i].label));
            if (canon_whitebalance[i].value == dpd->CurrentValue.u8)
                  gp_widget_set_value (*widget, _(canon_whitebalance[i].label));
      }
      return (GP_OK);
}

static int
_put_Canon_WhiteBalance(Camera* camera, CameraWidget *widget, PTPPropertyValue *propval) {
      char *value;
      int i, ret;

      ret = gp_widget_get_value (widget, &value);
      if (ret != GP_OK)
            return ret;
      for (i=0;i<sizeof (canon_whitebalance)/sizeof (canon_whitebalance[0]);i++) {
            if (!strcmp (value, _(canon_whitebalance[i].label))) {
                  propval->u8 = canon_whitebalance[i].value;
                  return (GP_OK);
            }
      }
      return (GP_ERROR);
}

static struct deviceproptableu8 canon_expcompensation[] = {
      { N_("Factory Default"),      0xff, 0 },
      { "+2",                 0x08, 0 },
      { "+1 2/3",       0x0b, 0 },
      { "+1 1/3",       0x0d, 0 },
      { "+1",                 0x10, 0 },
      { "+2/3",               0x13, 0 },
      { "+1/3",               0x15, 0 },
      { "0",                  0x18, 0 },
      { "-1/3",               0x1b, 0 },
      { "-2/3",               0x1d, 0 },
      { "-1",                 0x20, 0 },
      { "-1 1/3",       0x23, 0 },
      { "-1 2/3",       0x25, 0 },
      { "-2",                 0x28, 0 },
};

static int
_get_Canon_ExpCompensation(Camera* camera, CameraWidget **widget, struct submenu *menu, PTPDevicePropDesc *dpd) {
      int i;

      gp_widget_new (GP_WIDGET_RADIO, _(menu->label), widget);
      gp_widget_set_name (*widget, menu->name);
      if (!(dpd->FormFlag & PTP_DPFF_Enumeration))
            return (GP_ERROR);
      if (dpd->DataType != PTP_DTC_UINT8)
            return (GP_ERROR);
      for (i=0;i<sizeof (canon_expcompensation)/sizeof (canon_expcompensation[0]);i++) {
            gp_widget_add_choice (*widget, _(canon_expcompensation[i].label));
            if (canon_expcompensation[i].value == dpd->CurrentValue.u8)
                  gp_widget_set_value (*widget, _(canon_expcompensation[i].label));
      }
      return (GP_OK);
}

static int
_put_Canon_ExpCompensation(Camera* camera, CameraWidget *widget, PTPPropertyValue *propval) {
      char *value;
      int i, ret;

      ret = gp_widget_get_value (widget, &value);
      if (ret != GP_OK)
            return ret;
      for (i=0;i<sizeof (canon_expcompensation)/sizeof (canon_expcompensation[0]);i++) {
            if (!strcmp (value, _(canon_expcompensation[i].label))) {
                  propval->u8 = canon_expcompensation[i].value;
                  return (GP_OK);
            }
      }
      return (GP_ERROR);
}

static struct deviceproptableu16 canon_photoeffect[] = {
      { N_("Off"),            0, 0 },
      { N_("Vivid"),          1, 0 },
      { N_("Neutral"),        2, 0 },
      { N_("Low sharpening"), 3, 0 },
      { N_("Sepia"),          4, 0 },
      { N_("Black & white"),  5, 0 },
};

static int
_get_Canon_PhotoEffect(Camera* camera, CameraWidget **widget, struct submenu *menu, PTPDevicePropDesc *dpd) {
      int i;

      gp_widget_new (GP_WIDGET_RADIO, _(menu->label), widget);
      gp_widget_set_name (*widget, menu->name);
      if (!(dpd->FormFlag & PTP_DPFF_Enumeration))
            return (GP_ERROR);
      if (dpd->DataType != PTP_DTC_UINT16)
            return (GP_ERROR);
      for (i=0;i<sizeof (canon_photoeffect)/sizeof (canon_photoeffect[0]);i++) {
            gp_widget_add_choice (*widget, _(canon_photoeffect[i].label));
            if (canon_photoeffect[i].value == dpd->CurrentValue.u16)
                  gp_widget_set_value (*widget, _(canon_photoeffect[i].label));
      }
      return (GP_OK);
}

static int
_put_Canon_PhotoEffect(Camera* camera, CameraWidget *widget, PTPPropertyValue *propval) {
      char *value;
      int i, ret;

      ret = gp_widget_get_value (widget, &value);
      if (ret != GP_OK)
            return ret;
      for (i=0;i<sizeof (canon_photoeffect)/sizeof (canon_photoeffect[0]);i++) {
            if (!strcmp (value, _(canon_photoeffect[i].label))) {
                  propval->u16 = canon_photoeffect[i].value;
                  return (GP_OK);
            }
      }
      return (GP_ERROR);
}

static struct deviceproptableu16 canon_aperture[] = {
      { N_("auto"),     0xffff, 0 },
      { "2.8",          0x0020, 0 },
      { "3.2",          0x0023, 0 },
      { "3.5",          0x0025, 0 },
      { "4.0",          0x0028, 0 },
      { "4.5",          0x002b, 0 },
      { "5",            0x002d, 0 },
      { "5.6",          0x0030, 0 },
      { "6.3",          0x0033, 0 },
      { "7.1",          0x0035, 0 },
      { "8.0",          0x0038, 0 },
};

static int
_get_Canon_Aperture(Camera* camera, CameraWidget **widget, struct submenu *menu, PTPDevicePropDesc *dpd) {
      int i;

      gp_widget_new (GP_WIDGET_RADIO, _(menu->label), widget);
      gp_widget_set_name (*widget, menu->name);
      if (!(dpd->FormFlag & PTP_DPFF_Enumeration))
            return (GP_ERROR);
      if (dpd->DataType != PTP_DTC_UINT16)
            return (GP_ERROR);
      for (i=0;i<sizeof (canon_aperture)/sizeof (canon_aperture[0]);i++) {
            gp_widget_add_choice (*widget, _(canon_aperture[i].label));
            if (canon_aperture[i].value == dpd->CurrentValue.u16)
                  gp_widget_set_value (*widget, _(canon_aperture[i].label));
      }
      return (GP_OK);
}

static int
_put_Canon_Aperture(Camera* camera, CameraWidget *widget, PTPPropertyValue *propval) {
      char *value;
      int i, ret;

      ret = gp_widget_get_value (widget, &value);
      if (ret != GP_OK)
            return ret;
      for (i=0;i<sizeof (canon_aperture)/sizeof (canon_aperture[0]);i++) {
            if (!strcmp (value, _(canon_aperture[i].label))) {
                  propval->u16 = canon_aperture[i].value;
                  return (GP_OK);
            }
      }
      return (GP_ERROR);
}

static int
_get_UINT32_as_time(Camera* camera, CameraWidget **widget, struct submenu *menu, PTPDevicePropDesc *dpd) {
      time_t      camtime;

      gp_widget_new (GP_WIDGET_DATE, _(menu->label), widget);
      gp_widget_set_name (*widget,menu->name);
      camtime = dpd->CurrentValue.u32;
      gp_widget_set_value (*widget,&camtime);
      return (GP_OK);
}

static int
_put_UINT32_as_time(Camera* camera, CameraWidget *widget, PTPPropertyValue *propval) {
      time_t      camtime;
      int   ret;

      camtime = 0;
      ret = gp_widget_get_value (widget,&camtime);
      if (ret != GP_OK)
            return ret;
      propval->u32 = camtime;
      return (GP_OK);
}

static int
_get_STR_as_time(Camera* camera, CameraWidget **widget, struct submenu *menu, PTPDevicePropDesc *dpd) {
      time_t            camtime;
      struct tm   tm;
      char        capture_date[64],tmp[5];

      /* strptime() is not widely accepted enough to use yet */
      memset(&tm,0,sizeof(tm));
      gp_widget_new (GP_WIDGET_DATE, _(menu->label), widget);
      gp_widget_set_name (*widget, menu->name);
      strncpy(capture_date,dpd->CurrentValue.str,sizeof(capture_date));
      strncpy (tmp, capture_date, 4);
      tmp[4] = 0;
      tm.tm_year=atoi (tmp) - 1900;
      strncpy (tmp, capture_date + 4, 2);
      tmp[2] = 0;
      tm.tm_mon = atoi (tmp) - 1;
      strncpy (tmp, capture_date + 6, 2);
      tmp[2] = 0;
      tm.tm_mday = atoi (tmp);
      strncpy (tmp, capture_date + 9, 2);
      tmp[2] = 0;
      tm.tm_hour = atoi (tmp);
      strncpy (tmp, capture_date + 11, 2);
      tmp[2] = 0;
      tm.tm_min = atoi (tmp);
      strncpy (tmp, capture_date + 13, 2);
      tmp[2] = 0;
      tm.tm_sec = atoi (tmp);
      camtime = mktime(&tm);
      gp_widget_set_value (*widget,&camtime);
      return (GP_OK);
}

static int
_put_STR_as_time(Camera* camera, CameraWidget *widget, PTPPropertyValue *propval) {
      time_t            camtime;
#ifdef HAVE_GMTIME_R
      struct tm   xtm;
#endif
      struct tm   *pxtm;
      int         ret;
      char        asctime[64];

      camtime = 0;
      ret = gp_widget_get_value (widget,&camtime);
      if (ret != GP_OK)
            return ret;
#ifdef HAVE_GMTIME_R
      pxtm = gmtime_r (&camtime, &xtm);
#else
      pxtm = gmtime (&camtime);
#endif
      /* 20020101T123400.0 is returned by the HP Photosmart */
      sprintf(asctime,"%04d%02d%02dT%02d%02d%02d.0",pxtm->tm_year+1900,pxtm->tm_mon+1,pxtm->tm_mday,pxtm->tm_hour,pxtm->tm_min,pxtm->tm_sec);
      propval->str = strdup(asctime);
      return (GP_OK);
}

static int
_put_None(Camera* camera, CameraWidget *widget, PTPPropertyValue *dpd) {
      return (GP_ERROR_NOT_SUPPORTED);
}

static int
_get_Canon_CaptureMode(Camera* camera, CameraWidget **widget, struct submenu *menu, PTPDevicePropDesc *dpd) {
      int val;

      gp_widget_new (GP_WIDGET_TOGGLE, _(menu->label), widget);
      gp_widget_set_name (*widget, menu->name);
      val = 0;
      gp_widget_set_value  (*widget, &val);
      return (GP_OK);
}

static int
_put_Canon_CaptureMode(Camera* camera, CameraWidget *widget, PTPPropertyValue *dpd) {
      int val, ret;

      ret = gp_widget_get_value (widget, &val);
      if (ret != GP_OK)
            return ret;

      if (!EXPERIMENTAL_CANON_CAPTURE)
            return GP_ERROR;

      if (val)
            return camera_prepare_capture (camera, NULL);
      else
            return camera_unprepare_capture (camera, NULL);
}

static struct submenu camera_settings_menu[] = {
      { N_("Camera Owner"), "owner", PTP_DPC_CANON_CameraOwner, PTP_VENDOR_CANON, PTP_DTC_AUINT8, _get_AUINT8_as_CHAR_ARRAY, _put_AUINT8_as_CHAR_ARRAY },
      { N_("Camera Model"), "model", PTP_DPC_CANON_CameraModel, PTP_VENDOR_CANON, PTP_DTC_STR, _get_STR, _put_None },
      { N_("Flash Memory"), "internalmemory", PTP_DPC_CANON_FlashMemory, PTP_VENDOR_CANON, PTP_DTC_UINT32, _get_UINT32_as_MB, _put_None },
      { N_("Camera Time"),  "time", PTP_DPC_CANON_UnixTime,     PTP_VENDOR_CANON, PTP_DTC_UINT32, _get_UINT32_as_time, _put_UINT32_as_time },
      { N_("Camera Time"),  "time", PTP_DPC_DateTime,           0,                PTP_DTC_STR, _get_STR_as_time, _put_STR_as_time },
      { N_("Beep Mode"),  "beep",   PTP_DPC_CANON_BeepMode,     PTP_VENDOR_CANON, PTP_DTC_UINT8, _get_Canon_BeepMode, _put_Canon_BeepMode },
        { N_("Image Comment"), "imgcomment", PTP_DPC_NIKON_ImageCommentString, PTP_VENDOR_NIKON, PTP_DTC_STR, _get_STR, _put_STR },

/* virtual */
      { N_("Capture"), "capture", 0, PTP_VENDOR_CANON, 0, _get_Canon_CaptureMode, _put_Canon_CaptureMode},
      { NULL },
};

static struct submenu image_settings_menu[] = {
        { N_("Long Exp Noise Reduction"), "longexpnr", PTP_DPC_NIKON_D4LongExposureNoiseReduction, PTP_VENDOR_NIKON, PTP_DTC_UINT8, _get_Nikon_OnOff_UINT8, _put_Nikon_OnOff_UINT8},
        { N_("Image Quality"), "imgquality", PTP_DPC_CompressionSetting, PTP_VENDOR_NIKON, PTP_DTC_UINT8, _get_Compression, _put_Compression},
        { N_("Image Quality"), "imgquality", PTP_DPC_CANON_ImageQuality, PTP_VENDOR_CANON, PTP_DTC_UINT8, _get_Canon_Quality, _put_Canon_Quality},
        { N_("Image Size"), "imgsize", PTP_DPC_ImageSize, 0, PTP_DTC_STR, _get_ImageSize, _put_ImageSize},
        { N_("Image Size"), "imgsize", PTP_DPC_CANON_ImageSize, PTP_VENDOR_CANON, PTP_DTC_UINT8, _get_Canon_Size, _put_Canon_Size},
        { N_("ISO Speed"), "iso", PTP_DPC_CANON_ISOSpeed, PTP_VENDOR_CANON, PTP_DTC_UINT16, _get_Canon_ISO, _put_Canon_ISO},
        { N_("Macro Mode"), "macromode", PTP_DPC_CANON_MacroMode, PTP_VENDOR_CANON, PTP_DTC_UINT8, _get_Canon_Macro, _put_Canon_Macro},
      { N_("WhiteBalance"), "whitebalance", PTP_DPC_CANON_WhiteBalance, PTP_VENDOR_CANON, PTP_DTC_UINT8, _get_Canon_WhiteBalance, _put_Canon_WhiteBalance},
      { N_("Metering Mode"), "meteringmode", PTP_DPC_CANON_MeteringMode, PTP_VENDOR_CANON, PTP_DTC_UINT8, _get_Canon_MeteringMode, _put_Canon_MeteringMode},
      { N_("WhiteBalance"), "whitebalance", PTP_DPC_WhiteBalance, 0, PTP_DTC_UINT16, _get_WhiteBalance, _put_WhiteBalance},
      { N_("Photo Effect"), "photoeffect", PTP_DPC_CANON_PhotoEffect, PTP_VENDOR_CANON, PTP_DTC_UINT16, _get_Canon_PhotoEffect, _put_Canon_PhotoEffect},
      { N_("Aperture"), "aperture", PTP_DPC_CANON_Aperture, PTP_VENDOR_CANON, PTP_DTC_UINT16, _get_Canon_Aperture, _put_Canon_Aperture},
      { N_("Focusing Point"), "focusingpoint", PTP_DPC_CANON_FocusingPoint, PTP_VENDOR_CANON, PTP_DTC_UINT16, _get_Canon_FocusingPoint, _put_Canon_FocusingPoint},
      { N_("Shutter Speed"), "shutterspeed", PTP_DPC_CANON_ShutterSpeed, PTP_VENDOR_CANON, PTP_DTC_UINT16, _get_Canon_ShutterSpeed, _put_Canon_ShutterSpeed},
        { NULL },
};

static struct submenu capture_settings_menu[] = {
      { N_("Zoom"), "zoom", PTP_DPC_CANON_Zoom, PTP_VENDOR_CANON, PTP_DTC_UINT16, _get_Canon_ZoomRange, _put_Canon_ZoomRange},
      { N_("Assist Light"), "assistlight", PTP_DPC_CANON_AssistLight, PTP_VENDOR_CANON, PTP_DTC_UINT16, _get_Canon_AssistLight, _put_Canon_AssistLight},
      { N_("Exposure Compensation"), "exposurecompensation", PTP_DPC_CANON_ExpCompensation, PTP_VENDOR_CANON, PTP_DTC_UINT8, _get_Canon_ExpCompensation, _put_Canon_ExpCompensation},
      { N_("Flash"), "flash", PTP_DPC_CANON_FlashMode, PTP_VENDOR_CANON, PTP_DTC_UINT8, _get_Canon_FlashMode, _put_Canon_FlashMode},
      /* { N_("Viewfinder Mode"), "viewfinder", PTP_DPC_CANON_ViewFinderMode, PTP_VENDOR_CANON, PTP_DTC_UINT32, _get_Canon_ViewFinderMode, _put_Canon_ViewFinderMode}, */
      { NULL },
};

static struct menu menus[] = {
      { N_("Camera Settings"), "settings", camera_settings_menu },
      { N_("Image Settings"), "imgsettings", image_settings_menu },
      { N_("Capture Settings"), "capturesettings", capture_settings_menu },
};

static int
camera_get_config (Camera *camera, CameraWidget **window, GPContext *context)
{
      CameraWidget *section, *widget;
      PTPDevicePropDesc dpd;
      int menuno, submenuno;

      gp_widget_new (GP_WIDGET_WINDOW, _("Camera and Driver Configuration"), window);
      gp_widget_set_name (*window, "main");
      for (menuno = 0; menuno < sizeof(menus)/sizeof(menus[0]) ; menuno++ ) {
            gp_widget_new (GP_WIDGET_SECTION, _(menus[menuno].label), &section);
            gp_widget_set_name (section, menus[menuno].name);
            gp_widget_append (*window, section);

            for (submenuno = 0; menus[menuno].submenus[submenuno].name ; submenuno++ ) {
                  struct submenu *cursub = menus[menuno].submenus+submenuno;

                  if (!have_prop(camera,cursub->vendorid,cursub->propid))
                        continue;
                  if (cursub->propid) {
                        memset(&dpd,0,sizeof(dpd));
                        ptp_getdevicepropdesc(&camera->pl->params,cursub->propid,&dpd);
                        cursub->getfunc (camera, &widget, cursub, &dpd);
                        ptp_free_devicepropdesc(&dpd);
                  } else {
                        cursub->getfunc (camera, &widget, cursub, NULL);
                  }
                  gp_widget_append (section, widget);
            }
      }
#if 0
      char value[255];
      if (have_prop(camera,0,PTP_DPC_BatteryLevel)) {
            memset(&dpd,0,sizeof(dpd));
            ptp_getdevicepropdesc(&camera->pl->params,PTP_DPC_BatteryLevel,&dpd);
            GP_DEBUG ("Data Type = 0x%04x",dpd.DataType);
            GP_DEBUG ("Get/Set = 0x%02x",dpd.GetSet);
            GP_DEBUG ("Form Flag = 0x%02x",dpd.FormFlag);
            if (dpd.DataType!=PTP_DTC_UINT8) {
                  ptp_free_devicepropdesc(&dpd);
                  return GP_ERROR_NOT_SUPPORTED;
            }
            GP_DEBUG ("Factory Default Value = %0.2x",dpd.FactoryDefaultValue.u8);
            GP_DEBUG ("Current Value = %0.2x",dpd.CurrentValue.u8);

            gp_widget_new (GP_WIDGET_SECTION, _("Power (readonly)"), &section);
            gp_widget_append (*window, section);
            switch (dpd.FormFlag) {
            case PTP_DPFF_Enumeration: {
                  uint16_t i;
                  char tmp[64];

                  GP_DEBUG ("Number of values %i",
                        dpd.FORM.Enum.NumberOfValues);
                  gp_widget_new (GP_WIDGET_TEXT, _("Number of values"),&widget);
                  snprintf (value,255,"%i",dpd.FORM.Enum.NumberOfValues);
                  gp_widget_set_value (widget,value);
                  gp_widget_append (section,widget);
                  gp_widget_new (GP_WIDGET_TEXT, _("Supported values"),&widget);
                  value[0]='\0';
                  for (i=0;i<dpd.FORM.Enum.NumberOfValues;i++){
                        snprintf (tmp,6,"|%.3i|",dpd.FORM.Enum.SupportedValue[i].u8);
                        strncat(value,tmp,6);
                  }
                  gp_widget_set_value (widget,value);
                  gp_widget_append (section,widget);
                  gp_widget_new (GP_WIDGET_TEXT, _("Current value"),&widget);
                  snprintf (value,255,"%i",dpd.CurrentValue.u8);
                  gp_widget_set_value (widget,value);
                  gp_widget_append (section,widget);
                  break;
            }
            case PTP_DPFF_Range: {
                  float value_float;
                  gp_widget_new (GP_WIDGET_RANGE, _("Power (readonly)"), &widget);
                  gp_widget_append (section,widget);
                  gp_widget_set_range (widget, dpd.FORM.Range.MinimumValue.u8, dpd.FORM.Range.MaximumValue.u8, dpd.FORM.Range.StepSize.u8);
                  /* this is a write only capability */
                  value_float = dpd.CurrentValue.u8;
                  gp_widget_set_value (widget, &value_float);
                  gp_widget_changed(widget);
                  break;
            }
            case PTP_DPFF_None:
                  break;
            default: break;
            }
      }
#endif
      return GP_OK;
}

static int
camera_set_config (Camera *camera, CameraWidget *window, GPContext *context)
{
      CameraWidget *section, *widget, *subwindow;
      int menuno, submenuno, ret;

      ret = gp_widget_get_child_by_label (window, _("Camera and Driver Configuration"), &subwindow);
      if (ret != GP_OK)
            return ret;
      for (menuno = 0; menuno < sizeof(menus)/sizeof(menus[0]) ; menuno++ ) {
            ret = gp_widget_get_child_by_label (subwindow, _(menus[menuno].label), &section);
            if (ret != GP_OK)
                  continue;
            for (submenuno = 0; menus[menuno].submenus[submenuno].label ; submenuno++ ) {
                  PTPPropertyValue  propval;

                  struct submenu *cursub = menus[menuno].submenus+submenuno;
                  if (!have_prop(camera,cursub->vendorid,cursub->propid))
                        continue;

                  ret = gp_widget_get_child_by_label (section, _(cursub->label), &widget);
                  if (ret != GP_OK)
                        continue;

                  if (!gp_widget_changed (widget))
                        continue;

                  if (cursub->propid) {
                        ret = cursub->putfunc (camera, widget, &propval);
                        if (ret == GP_OK)
                              ptp_setdevicepropvalue (&camera->pl->params, cursub->propid, &propval, cursub->type);
                        ptp_free_devicepropvalue (cursub->type, &propval);
                  } else {
                        ret = cursub->putfunc (camera, widget, NULL);
                  }
            }
      }
      return GP_OK;
}

/* following functions are used for fs testing only */
#if 0
static void
add_dir (Camera *camera, uint32_t parent, uint32_t handle, const char *foldername)
{
      int n;
      n=camera->pl->params.handles.n++;
      camera->pl->params.objectinfo = (PTPObjectInfo*)
            realloc(camera->pl->params.objectinfo,
            sizeof(PTPObjectInfo)*(n+1));
      camera->pl->params.handles.handler[n]=handle;

      camera->pl->params.objectinfo[n].Filename=malloc(strlen(foldername)+1);
      strcpy(camera->pl->params.objectinfo[n].Filename, foldername);
      camera->pl->params.objectinfo[n].ObjectFormat=PTP_OFC_Association;
      camera->pl->params.objectinfo[n].AssociationType=PTP_AT_GenericFolder;
      
      camera->pl->params.objectinfo[n].ParentObject=parent;
}
#endif 

#if 0
static void
move_object_by_handle (Camera *camera, uint32_t parent, uint32_t handle)
{
      int n;

      for (n=0; n<camera->pl->params.handles.n; n++)
            if (camera->pl->params.handles.handler[n]==handle) break;
      if (n==camera->pl->params.handles.n) return;
      camera->pl->params.objectinfo[n].ParentObject=parent;
}
#endif

#if 0
static void
move_object_by_number (Camera *camera, uint32_t parent, int n)
{
      if (n>=camera->pl->params.handles.n) return;
      camera->pl->params.objectinfo[n].ParentObject=parent;
}
#endif

static uint32_t
find_child (const char *file, uint32_t storage, uint32_t handle, Camera *camera)
{
      int i;
      PTPObjectInfo *oi = camera->pl->params.objectinfo;

      for (i = 0; i < camera->pl->params.handles.n; i++) {
            if ((oi[i].StorageID==storage) && (oi[i].ParentObject==handle))
                  if (!strcmp(oi[i].Filename,file))
                        return (camera->pl->params.handles.Handler[i]);
      }
      /* else not found */
      return (PTP_HANDLER_SPECIAL);
}


static uint32_t
folder_to_handle(const char *folder, uint32_t storage, uint32_t parent, Camera *camera)
{
      char *c;
      if (!strlen(folder)) return PTP_HANDLER_ROOT;
      if (!strcmp(folder,"/")) return PTP_HANDLER_ROOT;

      c=strchr(folder,'/');
      if (c!=NULL) {
            *c=0;
            parent=find_child (folder, storage, parent, camera);
            return folder_to_handle(c+1, storage, parent, camera);
      } else  {
            return find_child (folder, storage, parent, camera);
      }
}
      

static int
file_list_func (CameraFilesystem *fs, const char *folder, CameraList *list,
            void *data, GPContext *context)
{
    Camera *camera = (Camera *)data;
    PTPParams *params = &camera->pl->params;
    uint32_t parent, storage=0x0000000;
    int i;
    
    /*((PTPData *)((Camera *)data)->pl->params.data)->context = context;*/
    
    /* There should be NO files in root folder */
    if (!strcmp(folder, "/"))
        return (GP_OK);

    if (!strcmp(folder, "/special")) {
      for (i=0; i<nrofspecial_files; i++)
            CR (gp_list_append (list, special_files[i].name, NULL));
      return (GP_OK);
    }

    /* compute storage ID value from folder patch */
    folder_to_storage(folder,storage);
    
    /* Get (parent) folder handle omiting storage pseudofolder */
    find_folder_handle(folder,storage,parent,data);
    
    for (i = 0; i < params->handles.n; i++) {
      if (params->objectinfo[i].ParentObject==parent) {
            if (params->objectinfo[i].ObjectFormat != PTP_OFC_Association) {
                if (!ptp_operation_issupported(params,PTP_OC_GetStorageIDs)
                    || (params->objectinfo[i].StorageID == storage)) {
                    CR (gp_list_append (list, params->objectinfo[i].Filename, NULL));
                }
            }
        }
    }
    
    return GP_OK;
}

static int
folder_list_func (CameraFilesystem *fs, const char *folder, CameraList *list,
            void *data, GPContext *context)
{
      PTPParams *params = &((Camera *)data)->pl->params;
      int i;
      uint32_t handler,storage;

      /*((PTPData *)((Camera *)data)->pl->params.data)->context = context;*/

      /* add storage pseudofolders in root folder */
      if (!strcmp(folder, "/")) {
            PTPStorageIDs storageids;

            if (ptp_operation_issupported(params,PTP_OC_GetStorageIDs)) {
                  CPR (context, ptp_getstorageids(params,
                        &storageids));
            } else {
                  storageids.n = 1;
                  storageids.Storage[0]=0xdeadbeef;
            }
            for (i=0; i<storageids.n; i++) {
                  char fname[PTP_MAXSTRLEN];
                  PTPStorageInfo storageinfo;
                  if ((storageids.Storage[i]&0x0000ffff)==0) continue;
                  if (ptp_operation_issupported(params,PTP_OC_GetStorageInfo)) {
                        CPR (context, ptp_getstorageinfo(params,
                              storageids.Storage[i], &storageinfo));
                  }
                  snprintf(fname, strlen(STORAGE_FOLDER_PREFIX)+9,
                        STORAGE_FOLDER_PREFIX"%08x",
                        storageids.Storage[i]);
                  CR (gp_list_append (list, fname, NULL));
            }

            if (nrofspecial_files)
                  CR (gp_list_append (list, "special", NULL));

            return (GP_OK);
      }

      if (!strcmp(folder, "/special")) {
            /* no folders in here */
            return (GP_OK);
      }

      /* compute storage ID value from folder path */
      folder_to_storage(folder,storage);

      /* Get folder handle omiting storage pseudofolder */
      find_folder_handle(folder,storage,handler,data);

      for (i = 0; i < params->handles.n; i++) {
      if (params->objectinfo[i].ParentObject==handler)
      if ((!ptp_operation_issupported(params,PTP_OC_GetStorageIDs)) || 
            (params->objectinfo[i].StorageID == storage))
      if (params->objectinfo[i].ObjectFormat==PTP_OFC_Association &&
            params->objectinfo[i].AssociationType!=PTP_AT_Undefined)
            CR (gp_list_append (list, params->objectinfo[i].Filename, NULL));
      }
      return (GP_OK);
}

static int
get_file_func (CameraFilesystem *fs, const char *folder, const char *filename,
             CameraFileType type, CameraFile *file, void *data,
             GPContext *context)
{
      Camera *camera = data;
      /* Note that "image" points to unsigned chars whereas all the other
       * functions which set image return pointers to chars.
       * However, we calculate a number of unsigned values in this function, 
       * so we cannot make it signed either.
       * Therefore, sometimes a "ximage" char* helper, since wild casts of pointers
       * confuse the compilers aliasing mechanisms.
       * If you do not like that, feel free to clean up the datatypes.
       * (TODO for Marcus and 2.2 ;)
       */
      unsigned char * image=NULL;
      uint32_t object_id;
      uint32_t size;
      uint32_t storage;
      PTPObjectInfo * oi;

      ((PTPData *) camera->pl->params.data)->context = context;

      if (!strcmp (folder, "/special")) {
            int i;

            for (i=0;i<nrofspecial_files;i++)
                  if (!strcmp (special_files[i].name, filename))
                        return special_files[i].getfunc (fs, folder, filename, type, file, data, context);
            return (GP_ERROR_BAD_PARAMETERS); /* file not found */
      }

      /* compute storage ID value from folder patch */
      folder_to_storage(folder,storage);

      /* Get file number omiting storage pseudofolder */
      find_folder_handle(folder, storage, object_id, data);
      object_id = find_child(filename, storage, object_id, camera);
      if ((object_id=handle_to_n(object_id, camera))==PTP_HANDLER_SPECIAL)
            return (GP_ERROR_BAD_PARAMETERS);

      oi=&camera->pl->params.objectinfo[object_id];

      GP_DEBUG ("Getting file.");
      switch (type) {

      case  GP_FILE_TYPE_EXIF: {
            uint32_t offset;
            uint32_t maxbytes;
            char  *ximage = NULL;

            /* Check if we have partial downloads. Otherwise we can just hope
             * upstream downloads the whole image to get EXIF data. */
            if (!ptp_operation_issupported(&camera->pl->params, PTP_OC_GetPartialObject))
                  return (GP_ERROR_NOT_SUPPORTED);
            /* could also use Canon partial downloads */
            CPR (context, ptp_getpartialobject (&camera->pl->params,
                  camera->pl->params.handles.Handler[object_id],
                  0, 10, &ximage));
            image = (unsigned char*)ximage;

            if (!((image[0] == 0xff) && (image[1] == 0xd8))) {    /* SOI */
                  free (image);
                  return (GP_ERROR_NOT_SUPPORTED);
            }
            if (!((image[2] == 0xff) && (image[3] == 0xe1))) {    /* App0 */
                  free (image);
                  return (GP_ERROR_NOT_SUPPORTED);
            }
            if (0 != memcmp(image+6, "Exif", 4)) {
                  free (image);
                  return (GP_ERROR_NOT_SUPPORTED);
            }
            offset = 2;
            maxbytes = (image[4] << 8 ) + image[5];
            free (image);
            ximage = NULL;
            CPR (context, ptp_getpartialobject (&camera->pl->params,
                  camera->pl->params.handles.Handler[object_id],
                  offset, maxbytes, &ximage));
            CR (gp_file_set_data_and_size (file, ximage, maxbytes));
            break;
      }
      case  GP_FILE_TYPE_PREVIEW: {
            char *ximage = NULL;

            /* If thumb size is 0 then there is no thumbnail at all... */
            if((size=oi->ThumbCompressedSize)==0) return (GP_ERROR_NOT_SUPPORTED);
            CPR (context, ptp_getthumb(&camera->pl->params,
                  camera->pl->params.handles.Handler[object_id],
                  &ximage));
            CR (gp_file_set_data_and_size (file, ximage, size));
            /* XXX does gp_file_set_data_and_size free() image ptr upon
               failure?? */
            break;
      }
      default: {
            char *ximage = NULL;

            /* we do not allow downloading unknown type files as in most
            cases they are special file (like firmware or control) which
            sometimes _cannot_ be downloaded. doing so we avoid errors.*/
            if (oi->ObjectFormat == PTP_OFC_Association ||
                  (oi->ObjectFormat == PTP_OFC_Undefined &&
                        oi->ThumbFormat == PTP_OFC_Undefined))
                  return (GP_ERROR_NOT_SUPPORTED);

            size=oi->ObjectCompressedSize;
            CPR (context, ptp_getobject(&camera->pl->params,
                  camera->pl->params.handles.Handler[object_id],
                  &ximage));
            CR (gp_file_set_data_and_size (file, ximage, size));
            /* XXX does gp_file_set_data_and_size free() image ptr upon
               failure?? */
            break;
      }
      }
      CR (set_mimetype (camera, file, oi->ObjectFormat));

      return (GP_OK);
}

static int
put_file_func (CameraFilesystem *fs, const char *folder, CameraFile *file,
            void *data, GPContext *context)
{
      Camera *camera = data;
      PTPObjectInfo oi;
      const char *filename;
      char *object;
      uint32_t parent;
      uint32_t storage;
      uint32_t handle;
      long int intsize;
      uint32_t size;
      PTPParams* params=&camera->pl->params;

      ((PTPData *) camera->pl->params.data)->context = context;

      if (!strcmp (folder, "/special")) {
            int i;

            for (i=0;i<nrofspecial_files;i++)
                  if (!strcmp (special_files[i].name, filename))
                        return special_files[i].putfunc (fs, folder, file, data, context);
            return (GP_ERROR_BAD_PARAMETERS); /* file not found */
      }

      memset(&oi, 0, sizeof (PTPObjectInfo));
      gp_file_get_name (file, &filename); 
      gp_file_get_data_and_size (file, (const char **)&object, &intsize);
      size=(uint32_t)intsize;

      /* compute storage ID value from folder patch */
      folder_to_storage(folder,storage);

      /* get parent folder id omiting storage pseudofolder */
      find_folder_handle(folder,storage,parent,data);

      /* if you desire to put file to root folder, you have to use 
       * 0xffffffff instead of 0x00000000 (which means responder decide).
       */
      if (parent==PTP_HANDLER_ROOT) parent=PTP_HANDLER_SPECIAL;

      oi.Filename=(char *)filename;
      oi.ObjectFormat=get_mimetype(camera, file);
      oi.ObjectCompressedSize=size;
      gp_file_get_mtime(file, &oi.ModificationDate);
      /* if the device is usign PTP_VENDOR_EASTMAN_KODAK extension try
       * PTP_OC_EK_SendFileObject
       */
      if ((params->deviceinfo.VendorExtensionID==PTP_VENDOR_EASTMAN_KODAK) &&
            (ptp_operation_issupported(params, PTP_OC_EK_SendFileObject)))
      {
            CPR (context, ptp_ek_sendfileobjectinfo (params, &storage,
                  &parent, &handle, &oi));
            CPR (context, ptp_ek_sendfileobject (params, object, size));
      } else if (ptp_operation_issupported(params, PTP_OC_SendObjectInfo)) {
            CPR (context, ptp_sendobjectinfo (params, &storage,
                  &parent, &handle, &oi));
            CPR (context, ptp_sendobject (params, object, size));
      } else {
            GP_DEBUG ("The device does not support uploading files!");
            return GP_ERROR_NOT_SUPPORTED;
      }
      /* update internal structures */
      add_object(camera, handle, context);
      return (GP_OK);
}

static int
delete_file_func (CameraFilesystem *fs, const char *folder,
                  const char *filename, void *data, GPContext *context)
{
      Camera *camera = data;
      unsigned long object_id;
      uint32_t storage;

      ((PTPData *) camera->pl->params.data)->context = context;

      if (!ptp_operation_issupported(&camera->pl->params, PTP_OC_DeleteObject))
            return GP_ERROR_NOT_SUPPORTED;

      if (!strcmp (folder, "/special"))
            return GP_ERROR_NOT_SUPPORTED;

      /* compute storage ID value from folder patch */
      folder_to_storage(folder,storage);

      /* Get file number omiting storage pseudofolder */
      find_folder_handle(folder, storage, object_id, data);
      object_id = find_child(filename, storage, object_id, camera);
      if ((object_id=handle_to_n(object_id, camera))==PTP_HANDLER_SPECIAL)
            return (GP_ERROR_BAD_PARAMETERS);

      CPR (context, ptp_deleteobject(&camera->pl->params,
            camera->pl->params.handles.Handler[object_id],0));

      /* On Canon firmwares, a DeleteObject causes a ObjectRemoved event
       * to be sent. At least on Digital IXUS II and PowerShot A85.
       */
      if ((camera->pl->params.deviceinfo.VendorExtensionID == PTP_VENDOR_CANON) &&
          ptp_event_issupported(&camera->pl->params, PTP_EC_ObjectRemoved)) {
            PTPContainer event;
            int ret;

            do {
                  ret = ptp_usb_event_wait (&camera->pl->params, &event);
                  if (  (ret == PTP_RC_OK) &&
                        (event.Code == PTP_EC_ObjectRemoved)
                  )
                        break;
            } while (ret == PTP_RC_OK);
      }
      return (GP_OK);
}

static int
remove_dir_func (CameraFilesystem *fs, const char *folder,
                  const char *foldername, void *data, GPContext *context)
{
      Camera *camera = data;
      unsigned long object_id;
      uint32_t storage;

      ((PTPData *) camera->pl->params.data)->context = context;

      if (!ptp_operation_issupported(&camera->pl->params, PTP_OC_DeleteObject))
            return GP_ERROR_NOT_SUPPORTED;

      /* compute storage ID value from folder patch */
      folder_to_storage(folder,storage);

      /* Get file number omiting storage pseudofolder */
      find_folder_handle(folder, storage, object_id, data);
      object_id = find_child(foldername, storage, object_id, camera);
      if ((object_id=handle_to_n(object_id, camera))==PTP_HANDLER_SPECIAL)
            return (GP_ERROR_BAD_PARAMETERS);

      CPR (context, ptp_deleteobject(&camera->pl->params,
            camera->pl->params.handles.Handler[object_id],0));

      return (GP_OK);
}

static int
get_info_func (CameraFilesystem *fs, const char *folder, const char *filename,
             CameraFileInfo *info, void *data, GPContext *context)
{
      Camera *camera = data;
      PTPObjectInfo *oi;
      uint32_t object_id;
      uint32_t storage;

      ((PTPData *) camera->pl->params.data)->context = context;
      
      if (!strcmp (folder, "/special"))
            return (GP_ERROR_BAD_PARAMETERS); /* for now */

      /* compute storage ID value from folder patch */
      folder_to_storage(folder,storage);

      /* Get file number omiting storage pseudofolder */
      find_folder_handle(folder, storage, object_id, data);
      object_id = find_child(filename, storage, object_id, camera);
      if ((object_id=handle_to_n(object_id, camera))==PTP_HANDLER_SPECIAL)
            return (GP_ERROR_BAD_PARAMETERS);

      oi=&camera->pl->params.objectinfo[object_id];

      info->file.fields = GP_FILE_INFO_SIZE|GP_FILE_INFO_TYPE|GP_FILE_INFO_MTIME;
      if (oi->Filename) {
            strcpy(info->file.name, oi->Filename);
            info->file.fields |= GP_FILE_INFO_NAME;
      }
      info->file.size   = oi->ObjectCompressedSize;
      strcpy_mime (info->file.type, oi->ObjectFormat);
      if (oi->ModificationDate != 0) {
            info->file.mtime = oi->ModificationDate;
      } else {
            info->file.mtime = oi->CaptureDate;
      }

      /* if object is an image */
      if ((oi->ObjectFormat & 0x0800) != 0) {
            info->preview.fields = GP_FILE_INFO_SIZE|GP_FILE_INFO_WIDTH
                        |GP_FILE_INFO_HEIGHT|GP_FILE_INFO_TYPE;
            strcpy_mime(info->preview.type, oi->ThumbFormat);
            info->preview.size   = oi->ThumbCompressedSize;
            info->preview.width  = oi->ThumbPixWidth;
            info->preview.height = oi->ThumbPixHeight;

            info->file.fields = info->file.fields |
                        GP_FILE_INFO_WIDTH  |
                        GP_FILE_INFO_HEIGHT;

            info->file.width  = oi->ImagePixWidth;
            info->file.height = oi->ImagePixHeight;
      }

            return (GP_OK);
}

static int
make_dir_func (CameraFilesystem *fs, const char *folder, const char *foldername,
             void *data, GPContext *context)
{
      Camera *camera = data;
      PTPObjectInfo oi;
      uint32_t parent;
      uint32_t storage;
      uint32_t handle;
      PTPParams* params=&camera->pl->params;

      if (!strcmp (folder, "/special"))
            return GP_ERROR_NOT_SUPPORTED;

      ((PTPData *) camera->pl->params.data)->context = context;
      memset(&oi, 0, sizeof (PTPObjectInfo));

      /* compute storage ID value from folder patch */
      folder_to_storage(folder,storage);

      /* get parent folder id omiting storage pseudofolder */
      find_folder_handle(folder,storage,parent,data);

      /* if you desire to make dir in 'root' folder, you have to use
       * 0xffffffff instead of 0x00000000 (which means responder decide).
       */
      if (parent==PTP_HANDLER_ROOT) parent=PTP_HANDLER_SPECIAL;

      oi.Filename=(char *)foldername;

      oi.ObjectFormat=PTP_OFC_Association;
      oi.ProtectionStatus=PTP_PS_NoProtection;
      oi.AssociationType=PTP_AT_GenericFolder;

      if ((params->deviceinfo.VendorExtensionID==
                  PTP_VENDOR_EASTMAN_KODAK) &&
            (ptp_operation_issupported(params,
                  PTP_OC_EK_SendFileObjectInfo)))
      {
            CPR (context, ptp_ek_sendfileobjectinfo (params, &storage,
                  &parent, &handle, &oi));
      } else if (ptp_operation_issupported(params, PTP_OC_SendObjectInfo)) {
            CPR (context, ptp_sendobjectinfo (params, &storage,
                  &parent, &handle, &oi));
      } else {
            GP_DEBUG ("The device does not support make folder!");
            return GP_ERROR_NOT_SUPPORTED;
      }
      /* update internal structures */
      add_object(camera, handle, context);
      return (GP_OK);
}

static int
init_ptp_fs (Camera *camera, GPContext *context)
{
      int i,id,nroot;

      ((PTPData *) camera->pl->params.data)->context = context;

      /* Get file handles array for filesystem */
      id = gp_context_progress_start (context, 100, _("Initializing Camera"));
      /* be paranoid!!! */
      memset (&camera->pl->params.handles, 0, sizeof(PTPObjectHandles));
      /* get objecthandles of all objects from all stores */
      CPR (context, ptp_getobjecthandles
      (&camera->pl->params, 0xffffffff, 0x000000, 0x000000,
      &camera->pl->params.handles));

      gp_context_progress_update (context, id, 10);
      /* wee need that for fileststem */
      camera->pl->params.objectinfo =
            (PTPObjectInfo*)malloc(sizeof(PTPObjectInfo)*
            camera->pl->params.handles.n);
      memset (camera->pl->params.objectinfo,0,sizeof(PTPObjectInfo)
            *camera->pl->params.handles.n);
      for (i = 0; i < camera->pl->params.handles.n; i++) {
            CPR (context, ptp_getobjectinfo(&camera->pl->params,
                  camera->pl->params.handles.Handler[i],
                  &camera->pl->params.objectinfo[i]));
#if 1
            {
            PTPObjectInfo *oi;

            oi=&camera->pl->params.objectinfo[i];
            GP_DEBUG ("ObjectInfo for '%s':", oi->Filename);
            GP_DEBUG ("  Object ID: 0x%08x",
                  camera->pl->params.handles.Handler[i]);
            GP_DEBUG ("  StorageID: 0x%08x", oi->StorageID);
            GP_DEBUG ("  ObjectFormat: 0x%04x", oi->ObjectFormat);
            GP_DEBUG ("  ProtectionStatus: 0x%04x", oi->ProtectionStatus);
            GP_DEBUG ("  ObjectCompressedSize: %d",
                  oi->ObjectCompressedSize);
            GP_DEBUG ("  ThumbFormat: 0x%04x", oi->ThumbFormat);
            GP_DEBUG ("  ThumbCompressedSize: %d",
                  oi->ThumbCompressedSize);
            GP_DEBUG ("  ThumbPixWidth: %d", oi->ThumbPixWidth);
            GP_DEBUG ("  ThumbPixHeight: %d", oi->ThumbPixHeight);
            GP_DEBUG ("  ImagePixWidth: %d", oi->ImagePixWidth);
            GP_DEBUG ("  ImagePixHeight: %d", oi->ImagePixHeight);
            GP_DEBUG ("  ImageBitDepth: %d", oi->ImageBitDepth);
            GP_DEBUG ("  ParentObject: 0x%08x", oi->ParentObject);
            GP_DEBUG ("  AssociationType: 0x%04x", oi->AssociationType);
            GP_DEBUG ("  AssociationDesc: 0x%08x", oi->AssociationDesc);
            GP_DEBUG ("  SequenceNumber: 0x%08x", oi->SequenceNumber);
            }
#endif
            gp_context_progress_update (context, id,
            10+(90*i)/camera->pl->params.handles.n);
      }
      gp_context_progress_stop (context, id);

        if (DCIM_WRONG_PARENT_BUG(camera->pl))
        {
            GP_DEBUG("PTPBUG_DCIM_WRONG_PARENT bug workaround");
            /* Count number of root directory objects */
            nroot = 0;
            for (i = 0; i < camera->pl->params.handles.n; i++) {
            if (camera->pl->params.objectinfo[i].ParentObject == 0) {
                    nroot++;
                }
            }
            
            GP_DEBUG("Found %d root directory objects", nroot);
            
            /* If no root directory objects, look for "DCIM".  This way, we can
             * handle cameras that report the wrong ParentObject ID for root
             */
            if (nroot == 0 && camera->pl->params.handles.n > 0) {
            for (i = 0; i < camera->pl->params.handles.n; i++)
            {
                    PTPObjectInfo *oi = &camera->pl->params.objectinfo[i];
                    
                    if (strcmp(oi->Filename, "DCIM") == 0)
                    {
                        GP_DEBUG("Changing DCIM ParentObject ID from 0x%x to 0",
                                 oi->ParentObject);
                        oi->ParentObject = 0;
                    }
            }
            }
        }
#if 0
      add_dir (camera, 0x00000000, 0xff000000, "DIR1");
      add_dir (camera, 0x00000000, 0xff000001, "DIR20");
      add_dir (camera, 0xff000000, 0xff000002, "subDIR1");
      add_dir (camera, 0xff000002, 0xff000003, "subsubDIR1");
      move_object_by_number (camera, 0xff000002, 2);
      move_object_by_number (camera, 0xff000001, 3);
      move_object_by_number (camera, 0xff000002, 4);
      /* Used for testing with my camera, which does not support subdirs */
#endif
      return (GP_OK);
}


int
camera_init (Camera *camera, GPContext *context)
{
      CameraAbilities a;
      int ret, i, retried = 0;

      /* Make sure our port is a USB port */
      if (camera->port->type != GP_PORT_USB) {
            gp_context_error (context, _("PTP is implemented for "
                  "USB cameras only."));
            return (GP_ERROR_UNKNOWN_PORT);
      }

      camera->functions->about = camera_about;
      camera->functions->exit = camera_exit;
      camera->functions->capture = camera_capture;
      camera->functions->capture_preview = camera_capture_preview;
      camera->functions->summary = camera_summary;
      camera->functions->get_config = camera_get_config;
      camera->functions->set_config = camera_set_config;

      /* We need some data that we pass around */
      camera->pl = malloc (sizeof (CameraPrivateLibrary));
      if (!camera->pl)
            return (GP_ERROR_NO_MEMORY);
      camera->pl->params.sendreq_func=ptp_usb_sendreq;
      camera->pl->params.senddata_func=ptp_usb_senddata;
      camera->pl->params.getresp_func=ptp_usb_getresp;
      camera->pl->params.getdata_func=ptp_usb_getdata;
      camera->pl->params.write_func = ptp_write_func;
      camera->pl->params.read_func  = ptp_read_func;
      camera->pl->params.check_int_func = ptp_check_int;
      camera->pl->params.check_int_fast_func = ptp_check_int_fast;
      camera->pl->params.debug_func = ptp_debug_func;
      camera->pl->params.error_func = ptp_error_func;
      camera->pl->params.data = malloc (sizeof (PTPData));
      memset (camera->pl->params.data, 0, sizeof (PTPData));
      ((PTPData *) camera->pl->params.data)->camera = camera;
      camera->pl->params.byteorder = PTP_DL_LE;

        gp_camera_get_abilities(camera, &a);
        for (i = 0; models[i].model; i++) {
            if ((a.usb_vendor == models[i].usb_vendor) &&
                (a.usb_product == models[i].usb_product)){
                camera->pl->bugs = models[i].known_bugs;
                break;
            }
        }


      /* On large fiels (over 50M) deletion takes over 3 seconds,
       * waiting for event after capture may take some time also
       */
      CR (gp_port_set_timeout (camera->port, USB_TIMEOUT));
      /* do we configure port ???*/

      /* Establish a connection to the camera */
      ((PTPData *) camera->pl->params.data)->context = context;

      retried = 0;
      while (1) {
            ret=ptp_opensession (&camera->pl->params, 1);
            while (ret==PTP_RC_InvalidTransactionID) {
                  camera->pl->params.transaction_id+=10;
                  ret=ptp_opensession (&camera->pl->params, 1);
            }
            if (ret!=PTP_RC_SessionAlreadyOpened && ret!=PTP_RC_OK) {
                  if (retried < 2) { /* try again */
                        retried++;
                        continue;
                  }
                  report_result(context, ret);
                  return (translate_ptp_result(ret));
            }
            break;
      }

      /* Seems HP does not like getdevinfo outside of session 
         although it's legal to do so */
      /* get device info */
      CPR(context, ptp_getdeviceinfo(&camera->pl->params,
      &camera->pl->params.deviceinfo));

      GP_DEBUG ("Device info:");
      GP_DEBUG ("Manufacturer: %s",camera->pl->params.deviceinfo.Manufacturer);
      GP_DEBUG ("  model: %s", camera->pl->params.deviceinfo.Model);
      GP_DEBUG ("  device version: %s", camera->pl->params.deviceinfo.DeviceVersion);
      GP_DEBUG ("  serial number: '%s'",camera->pl->params.deviceinfo.SerialNumber);
      GP_DEBUG ("Vendor extension ID: 0x%08x",camera->pl->params.deviceinfo.VendorExtensionID);
      GP_DEBUG ("Vendor extension description: %s",camera->pl->params.deviceinfo.VendorExtensionDesc);
      GP_DEBUG ("Supported operations:");
      for (i=0; i<camera->pl->params.deviceinfo.OperationsSupported_len; i++)
            GP_DEBUG ("  0x%04x",
                  camera->pl->params.deviceinfo.OperationsSupported[i]);
      GP_DEBUG ("Events Supported:");
      for (i=0; i<camera->pl->params.deviceinfo.EventsSupported_len; i++)
            GP_DEBUG ("  0x%04x",
                  camera->pl->params.deviceinfo.EventsSupported[i]);
      GP_DEBUG ("Device Properties Supported:");
      for (i=0; i<camera->pl->params.deviceinfo.DevicePropertiesSupported_len;
            i++)
            GP_DEBUG ("  0x%04x",
                  camera->pl->params.deviceinfo.DevicePropertiesSupported[i]);

      /* init internal ptp objectfiles (required for fs implementation) */
      init_ptp_fs (camera, context);

      switch (camera->pl->params.deviceinfo.VendorExtensionID) {
      case PTP_VENDOR_CANON:
            if (ptp_operation_issupported(&camera->pl->params, PTP_OC_CANON_ThemeDownload))
                  add_special_file("theme.dat", canon_theme_get, canon_theme_put);
            break;
      case PTP_VENDOR_NIKON:
      /* Veggen: add curve magic command here: 
            if (ptp_operation_issupported(&camera->pl->params, PTP_OC_CANON_ThemeDownload))
                  add_special_file("curve.ntc", nikon_curve_get, nikon_curve_put);
            break;e
      */
      default:
            break;
      }

      /* Configure the CameraFilesystem */
      CR (gp_filesystem_set_list_funcs (camera->fs, file_list_func,
                                folder_list_func, camera));
      CR (gp_filesystem_set_info_funcs (camera->fs, get_info_func, NULL,
                                camera));
      CR (gp_filesystem_set_file_funcs (camera->fs, get_file_func,
                                delete_file_func, camera));
      CR (gp_filesystem_set_folder_funcs (camera->fs, put_file_func,
                                  NULL, make_dir_func,
                                  remove_dir_func, camera));
      return (GP_OK);
}

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