When I upgraded from kernel 2.6.7 to 2.6.8.1 and above, xsane could not recognize my USB scanner anymore (Agfa Snapscan 1212_U, which uses ohci_hcd module (USB 1.0 OHCI) although I still had connection or deconnection messages. Since USB support has been rewritten between these two versions, the solution was to recreate appropriate characters devices.
#cd /dev root@babs1:/dev#/sbin/MAKEDEV usb
Last modification 03.04.2005