USB scanner permission

[John Thompson]

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...

-- 

John (john at os2.dhs.org)