I have an external cd-rw, and a scanner attached to my laptop.
USBview doesn't list any device's, here is the result's of: /sbin/lspci -v
00:07.2 USB Controller: Intel Corp. 82371AB/EB/MB PIIX4 USB (rev 01) (prog-if 00 [UHCI])
Flags: medium devsel, IRQ 9
I/O ports at fcc0 [disabled] [size=32]
hopefully this help's.
chopp