Using a scanner (USB) as user and not as root

Roland Smith rsmith at xs4all.nl
Wed Apr 28 18:22:25 UTC 2010


On Wed, Apr 28, 2010 at 07:50:04PM +0200, Marco Beishuizen wrote:
> Hi,
> 
> I have a flatbed scanner (a HP ScanJet 4400c) that works with SANE (and 
> Xsane), but only as root and I want to access it as user. After some 
> googling and reading the handbook I copied the default file 
> /etc/defaults/devfs.rules to /etc/ and added the lines:
> 
> [system=5]
> add path 'ugen*' mode 0664 group usb
> add path 'usb/*' mode 0666 group usb
> 
> and also made the group usb with root and the user in /etc/group.
> I also added devfs_system_ruleset="system" to /etc/rc.conf.
> 
> After a reboot, USB and the scanner are still only accessible as root and 
> not as user. What am I doing wrong?

Are the permissions correct? Check with 'ls -l /dev/usb/ /dev/ugen*'.
Is your user-id in the usb group? Check by running 'id' as the normal user.

If all that is in order, remove all lines except the three above from
/etc/devfs.rules, and try again.

-- 
R.F.Smith                                   http://www.xs4all.nl/~rsmith/
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