CentOS

sane-find-scanner -v
Returns
libusb not available
lsusb
[root@rose sane.d]# lsusb
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 002: ID 0557:7000 ATEN International Co., Ltd Hub
Bus 005 Device 003: ID 0557:2233 ATEN International Co., Ltd
Bus 005 Device 004: ID 046d:c52b Logitech, Inc. Unifying Receiver
Bus 005 Device 005: ID 050d:0234 Belkin Components F5U234 USB 2.0 4-Port Hub
Bus 005 Device 006: ID 413c:2003 Dell Computer Corp. Keyboard
Bus 005 Device 007: ID 0430:0005 Sun Microsystems, Inc. Type 6 Keyboard
Bus 005 Device 008: ID 04a9:1909 Canon, Inc. CanoScan LiDE 110


Sadly I had this scanner working, but I had to re-install my OS and can't remember how I did it.

Thanks,
Gene

See if yum install libusb helps.