USB scanner permission

Andrea Mastellone andrea.mastellone at
Wed Feb 20 15:00:29 UTC 2008

Mikkel L. Ellertson wrote:
> John Thompson wrote:
>> After one of the latest rounds of updates of FC8 I find I can no 
>> longer use xsane as a normal user: it shows the "Looking for devices" 
>> pop-up but never finds my USB scanner. If I run xsane as "root" it 
>> works fine, so apparently this is a permission problem.
>> How do I determine which device file in /dev is being used for the 
>> scanner? This used to be simple before the days of udev...
> This should be handled by a combination of 
> /etc/udev/rules.d/60-libsane.rules and 
> /etc/security/console.perms.d//etc/security/console.perms.d
> I can not really test it here, as I am using a network scanner, and that 
> is working.
> Mikkel

Simple trick (but not definitive):

As root, find your device and bus id by lsusb. Then, cd to


(xxx being the bus id)

and chmod o+rw the device id.


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