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Canon camera problem




On 4/19/07, Jan Willem Stumpel < jstumpel@planet.nl> wrote:
Although I did "nothing" to the system (apart from regular Sid
upgrades) I suddenly cannot download pictures anymore (using
gtkam) from my Canon (powershot A420) camera. This is not a
"mounted storage", but a "PTP" type camera.

The system can "see" the camera alright (it is listed in
/proc/bus/usb/devices; when it is switched on a message in
/var/log/syslog appears, etc.) but apparently cannot "open" it
anymore.

In gtkam a message appears:

   Could not get file list for folder '/'

  An error occurred in the io-library ('Could not claim the USB
  device'): Could not claim interface 0 (Operation not permitted).
  Make sure no other program or kernel module (such as sdc2xx,
  stv680, spca50x) is using the device and you have read/write
  access to the device.

The trouble is that I do not understand anything of this.

Any suggestions? 

crap didnt check who i was sending too :/

i have the exact same model and never had problems like the ones you describe.
what app are you using to access the camera ?
gtkam ?
picasa ?
something else ?
both (picasa and gtkam) of these work perfectly on my box (both use libgphoto2 iirc to access the camera).
maybe check your (the users) permissions to /proc/bus/usb and/or /dev/bus/usb ?
the 'operation not permitted' message would suggest a perm issue so checking the perms to the dirs mentioned (make sure you have read/write access) might fix it.

--
Pozdrawiam

Łukasz Andrzejak


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