udev - wrong permissions in udev rules for usb camera

[royden]

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

[Giuseppe Pennisi (giupenni78)]

I have the same problem.
I have a Canon PowerShot A630.
With Gutsy it work.

gp

[ignacio (rozada-math)]

Same problem, Gutsy beta amd64, I have a Canon G9, tried f-spot and gtkam and I couldn't detect the camera, although it shows up in lsusb. In Hardy (32) it worked out of the box.

[chocolatetoothpaste (rpaskett)]

I have a similar problem. I have a Canon PowerShot A570, and have been unsuccessful in finding a way to mount it. I only wish to mount it as a usb drive, and use an arbitrary shell script to transfer my photos. lsusb gives evidence that the camera was detected, but it appears the contrary is true.

[Remke (r-schuurmans)]

this worked for me with Canon A570 (Ubuntu 8.04)
https://bugs.launchpad.net/ubuntu/+source/udev/+bug/206470

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"

Gr.
-remke-