Public bug reported:
Binary package hint: udev
OS: Hardy (fully updated)
Package: udev 117-4ubuntu1
Actions: plug in Canon D-Ixus 400 to usb port, switch camera on. "lsusb"
confirms camera found.
Result: (f-prot does not run automatically) A manual run of f-prot
cannot find camera, with message "cannot claim usb...".
Workarounds: 1) (f-prot segfaults when run as sudo) At CLI "sudo gtkam"
results in camera being correctly read.
2) Edit /etc/udev/rules.d/40-permissions.rules - replace:
SUBSYSTEM=="usb", ENV{DEVTYPE}=="usb_device", MODE="0664"
SUBSYSTEM=="usb_device", MODE="0664"
with
SUBSYSTEM=="usb", ENV{DEVTYPE}=="usb_device", GROUP="plugdev"
SUBSYSTEM=="usb_device", GROUP="plugdev"
f-prot now finds camera (tho' still does not run automatically upon
inserting camera).
Similar bug reports:
https://bugs.launchpad.net/ubuntu/+source/udev/+bug/196743
Realted forum reports:
http://ubuntuforums.org/showpost.php?p=4232045
http://ubuntuforums.org/showthread.php?t=733508
Comments:
I note that /etc/udev/rules.d/45-libgphoto2.rules no longer exists and am
unsure if the above edits are safe for all usb devices excl block, printers
etc.
Will attach udevmonitor etc.output shortly
** Affects: udev (Ubuntu)
Importance: Undecided
Status: New
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udev - wrong permissions in udev rules for usb camera
https://bugs.launchpad.net/bugs/206470
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