Red Hat Bugzilla – Bug 194601
can't use gphoto2 as user
Last modified: 2007-11-30 17:11:35 EST
Description of problem: Access to pictures works as root, but not as user. Version-Release number of selected component (if applicable):2.1.99-8 and 2.1.99-14 (rawhide) How reproducible: always Steps to Reproduce: 1. gphoto2 --get-all-files 2. 3. Actual results: 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. *** Error (-53: 'Could not claim the USB device') *** Expected results: downloading all the pictures; this is what happens when I do this as root. Additional info: This may be a duplicate of bug 189936. This was originally submitted on 2006-06-12 (bug 194926) but lost in a hardware crash. Camera detection works: % gphoto2 --auto-detect Model Port ---------------------------------------------------------- Canon Digital IXUS 55 (PTP mode) usb:
Created attachment 130822 [details] output of gphoto2 --debug --get-all-files
It seems that uour problem and its solution is described in gphoto FAQ. See http://www.gphoto.org/doc/manual/FAQ.html#FAQ-could-not-claim-USB. If it is not that case, please, reopen this bug and we will try to fix that.
The FAQ links to http://www.gphoto.org/doc/manual/permissions-usb.html which talks mainly about using hotplug. As far as I can tell, there is no RPM for Fedora that provides hotplug. The file /proc/sys/kernel/hotplug exists but is empty. Should I use the insecure method: allow a certain user and/or group or the whole world access to all USB devices or is there a more secure alternative in Fedora?