- Using USB devices as users other then root
- Posted by Alex on February 22nd, 2004
Hi all,
I'm trying to use gtkam as a non-root user, but it won't work. As
root all is great, but when I run gtkam as a non-root user, I get this
error:
** (gtkam:20227): WARNING **: Could not find '' in port info list
(Unknown port)!
How can I determine what the device in /dev is assigned to my digital
camera when it's connected and turned on? I'm assuming this device is
owned by root with 700 or something similarly restrictive.
Suggestions? Thanks.
Alex.
- Posted by Peter Christy on February 22nd, 2004
Is it a USB or serial camera you're trying to install? And are you running
devfs or not?
There is some very good documentation on the gphoto home-page (www.gphoto.org)
which takes you through setting up permissions for both serial and usb
devices......
--
Pete
christy@NOattglobalSPAM.net
(make the obvious amendments to reply!)
- Posted by steelneck on February 22nd, 2004
Alex wrote:
I posted my solution to this problem in the
thread "gtkam and libgphoto" for a couple of
days ago. It is about the permissions to USB.
I solved it by mounting /proc/bus/usb with
umask=022, that gave me the permissions i
needed.
- Posted by Marcel van Osenbruggen on February 27th, 2004
Alex wrote:
I added 2 lines to /etc/hotplug/usb.agent to overcome this problem ...
# change ownership to console-user
console_user=$( stat -c %U /dev/console )
chown $console_user $DEVICE
These lines are at the end of the add) action ...
The one that is on the console will be the one that connected the
usb-cam ...
--
// Marcel van Osenbruggen marcel@panix.nl \\
