# env LANG=C gphoto2 --debug --camera "USB PTP Class Camera" --port "usb:" --capture-image -f "/store_80000001" -p "capt0000.jpg" 0.000039 main(2): ALWAYS INCLUDE THE FOLLOWING LINES WHEN SENDING DEBUG MESSAGES TO THE MAILING LIST: 0.032323 main(2): gphoto2 2.2.0 0.055502 main(2): gphoto2 has been compiled with the following options: 0.055812 main(2): + mipsel-linux-uclibc-gcc (C compiler used) 0.056117 main(2): + popt (for handling command-line parameters) 0.056419 main(2): + exif (for displaying EXIF information) 0.056721 main(2): + no cdk (for accessing configuration options) 0.057021 main(2): + no aa (for displaying live previews) 0.057323 main(2): + no jpeg (for displaying live previews in JPEG format) 0.057627 main(2): + no readline (for easy navigation in the shell) 0.057932 main(2): libgphoto2 2.2.1 0.058253 main(2): libgphoto2 has been compiled with the following options: 0.058553 main(2): + mipsel-linux-uclibc-gcc (C compiler used) 0.058857 main(2): + EXIF (for special handling of EXIF files) 0.059160 main(2): + no /proc/meminfo (adapts cache size to memory available) 0.059467 main(2): libgphoto2_port 0.6.1 0.059789 main(2): libgphoto2_port has been compiled with the following options: 0.060089 main(2): + mipsel-linux-uclibc-gcc (C compiler used) 0.060389 main(2): + USB (libusb, for USB cameras) 0.060689 main(2): + serial (for serial cameras) 0.060987 main(2): + no resmgr (serial port access and locking) 0.061291 main(2): + no baudboy (serial port locking) 0.061591 main(2): + no ttylock (serial port locking) 0.061890 main(2): + no lockdev (serial port locking) 0.062642 main(2): Processing 'model' option ('USB PTP Class Camera')... 0.063545 gphoto2-camera(2): Setting abilities ('USB PTP Class Camera')... 0.064030 setting/gphoto2-setting.c(2): Creating $HOME/.gphoto 0.065077 setting/gphoto2-setting.c(2): Loading settings from file "/tmp/.gphoto/settings" 0.065736 gphoto2-setting(2): Setting key 'model' to value 'USB PTP Class Camera' (gphoto2) 0.066201 gphoto2-setting(2): Saving 2 setting(s) to file "/tmp/.gphoto/settings" 0.067103 main(2): Processing 'port' option ('usb:')... 0.067588 gphoto2-port-info-list(2): Using ltdl to load io-drivers from '/usr/lib/libgphoto2_port/0.6.1'... 0.068442 gphoto2-port-info-list(2): Called for filename '/usr/lib/libgphoto2_port/0.6.1/disk'. 0.072630 gphoto2-port-info-list(2): Could not load port driver list: 'Unspecified error'. 0.073006 gphoto2-port-info-list(2): Called for filename '/usr/lib/libgphoto2_port/0.6.1/ptpip'. 0.075246 gphoto2-port-info-list(2): Loaded 'PTP/IP Connection' ('ptpip:') from '/usr/lib/libgphoto2_port/0.6.1/ptpip'. 0.075729 gphoto2-port-info-list(2): Loaded '' ('^ptpip') from '/usr/lib/libgphoto2_port/0.6.1/ptpip'. 0.076123 gphoto2-port-info-list(2): Called for filename '/usr/lib/libgphoto2_port/0.6.1/serial'. 0.078185 gphoto2-port-serial(2): Trying to lock '/dev/tts/0'... 0.078936 gphoto2-port-serial(2): Trying to lock '/dev/tts/1'... 0.086498 gphoto2-port-info-list(2): Loaded 'Serial Port 0' ('serial:/dev/tts/0') from '/usr/lib/libgphoto2_port/0.6.1/serial'. 0.096084 gphoto2-port-info-list(2): Loaded 'Serial Port 1' ('serial:/dev/tts/1') from '/usr/lib/libgphoto2_port/0.6.1/serial'. 0.096499 gphoto2-port-info-list(2): Loaded '' ('^serial') from '/usr/lib/libgphoto2_port/0.6.1/serial'. 0.096897 gphoto2-port-info-list(2): Called for filename '/usr/lib/libgphoto2_port/0.6.1/usb'. 0.109063 gphoto2-port-info-list(2): Loaded 'Universal Serial Bus' ('usb:') from '/usr/lib/libgphoto2_port/0.6.1/usb'. 0.109510 gphoto2-port-info-list(2): Loaded '' ('^usb:') from '/usr/lib/libgphoto2_port/0.6.1/usb'. 0.109939 gphoto2-port-info-list(2): Counting entries (8 available)... 0.110252 gphoto2-port-info-list(2): 4 regular entries available. 0.110548 gphoto2-port-info-list(2): Looking for path 'usb:' (8 entries available)... 0.110936 gphoto2-port-info-list(2): Getting info of entry 3 (8 available)... 0.111343 gphoto2-camera(2): Setting port info for port 'Universal Serial Bus' at 'usb:'... 0.122878 gphoto2-port(2): Setting timeout to 5000 millisecond(s)... 0.123222 gphoto2-port(2): Setting settings... 0.123473 gphoto2-setting(2): Setting key 'port' to value 'usb:' (gphoto2) 0.134066 gphoto2-setting(2): Saving 2 setting(s) to file "/tmp/.gphoto/settings" 0.137094 gphoto2-camera(2): Initializing camera... 0.137592 gphoto2-port(0): The supplied vendor or product id (0x0,0x0) is not valid. 0.137938 gphoto2-port-usb(1): Looking for USB device (class 0x6, subclass, 0x1, protocol 0x1)... found. 0.138350 gphoto2-port-usb(1): Detected defaults: config 1, interface 0, altsetting 0, idVendor ID 04a9, idProduct 30b1, inep 81, outep 02, intep 83 0.138984 gphoto2-camera(2): Loading '/usr/lib/libgphoto2/2.2.1/ptp2'... 0.142563 gphoto2-port(2): Opening USB port... 0.143273 gphoto2-port(0): Could not query kernel driver of device. 0.144041 gphoto2-port(2): Setting timeout to 8000 millisecond(s)... 0.144553 ptp(2): PTP: Opening session 0.145027 gphoto2-port(2): Writing 16=0x10 byte(s) to port... 0.145425 gphoto2-port(3): Hexdump of 16 = 0x10 bytes follows: 0000 10 00 00 00 01 00 02 10-00 00 00 00 01 00 00 00 ................ 0.148979 gphoto2-port(2): Reading 4096=0x1000 bytes from port... 0.157742 gphoto2-port(2): Could only read 12 out of 4096 byte(s) 0.158171 gphoto2-port(3): Hexdump of 12 = 0xc bytes follows: 0000 0c 00 00 00 03 00 01 20-00 00 00 00 ....... .... 0.158630 gphoto2-port(2): Writing 12=0xc byte(s) to port... 0.159008 gphoto2-port(3): Hexdump of 12 = 0xc bytes follows: 0000 0c 00 00 00 01 00 01 10-01 00 00 00 ............ 8.164011 PTP2/library.c(2): PTP: gp_port_* function returned 0xffffffdd -35 8.164490 context(0): PTP I/O error *** Error *** PTP I/O error 8.165117 gphoto2-port(2): Closing port... 8.165940 context(0): An error occurred in the io-library ('Unspecified error'): Could not query kernel driver of device. *** Error *** An error occurred in the io-library ('Unspecified error'): Could not query kernel driver of device. ERROR: Could not capture. 8.166944 main(2): Getting 'capt0000.jpg'... 8.167406 gphoto2-camera(2): Getting file 'capt0000.jpg' in folder '/store_80000001'... 8.167798 gphoto2-camera(2): Initializing camera... 8.168090 gphoto2-port(0): The supplied vendor or product id (0x0,0x0) is not valid. 8.168371 gphoto2-port-usb(1): Looking for USB device (class 0x6, subclass, 0x1, protocol 0x1)... found. 8.168763 gphoto2-port-usb(1): Detected defaults: config 1, interface 0, altsetting 0, idVendor ID 04a9, idProduct 30b1, inep 81, outep 02, intep 83 8.169384 gphoto2-camera(2): Loading '/usr/lib/libgphoto2/2.2.1/ptp2'... 8.172930 gphoto2-port(2): Opening USB port... 8.173533 gphoto2-port(0): Could not query kernel driver of device. 8.174267 gphoto2-port(2): Setting timeout to 8000 millisecond(s)... 8.174776 ptp(2): PTP: Opening session 8.175255 gphoto2-port(2): Writing 16=0x10 byte(s) to port... 8.175653 gphoto2-port(3): Hexdump of 16 = 0x10 bytes follows: 0000 10 00 00 00 01 00 02 10-00 00 00 00 01 00 00 00 ................ 16.183999 PTP2/library.c(2): PTP: gp_port_* function returned 0xffffffdd -35 16.195941 ptp(2): PTP: Opening session 16.196207 gphoto2-port(2): Writing 16=0x10 byte(s) to port... 16.196569 gphoto2-port(3): Hexdump of 16 = 0x10 bytes follows: 0000 10 00 00 00 01 00 02 10-00 00 00 00 01 00 00 00 ................ 24.203904 PTP2/library.c(2): PTP: gp_port_* function returned 0xffffffdd -35 24.204320 ptp(2): PTP: Opening session 24.204576 gphoto2-port(2): Writing 16=0x10 byte(s) to port... 24.204929 gphoto2-port(3): Hexdump of 16 = 0x10 bytes follows: 0000 10 00 00 00 01 00 02 10-00 00 00 00 01 00 00 00 ................ 32.213917 PTP2/library.c(2): PTP: gp_port_* function returned 0xffffffdd -35 32.214360 context(0): PTP I/O error *** Error *** PTP I/O error 32.214940 gphoto2-port(2): Closing port... 32.215698 context(0): An error occurred in the io-library ('Unspecified error'): Could not query kernel driver of device. *** Error *** An error occurred in the io-library ('Unspecified error'): Could not query kernel driver of device. *** Error (-1: 'Unspecified error') *** For debugging messages, please use the --debug option. Debugging messages may help finding a solution to your problem. If you intend to send any error or debug messages to the gphoto developer mailing list , please run gphoto2 as follows: env LANG=C gphoto2 --debug --debug --camera "USB PTP Class Camera" --port "usb:" --capture-image -f "/store_80000001" -p "capt0000.jpg" Please make sure there is sufficient quoting around the arguments. 32.218143 gp-camera(2): Freeing camera... 32.218466 gphoto2-port(2): Freeing port... 32.218727 gphoto2-port(2): Closing port... 32.219669 libgphoto2/gphoto2-filesys.c(2): Clearing fscache LRU list... 32.219985 libgphoto2/gphoto2-filesys.c(2): fscache LRU list already empty 32.220243 gphoto2-filesystem(2): Internally deleting all folders from '/'... root@OpenWrt:~#