[expert] libusb2?

[Digital Wokan]

I'm attempting to use the hackgphoto2 packages, but can't install gtkam
without libusb2.  I have libusb0.1 (making a libusb2 seem more like a
typo).  Any ideas where this can be found and how I can let RPM know
it's being provided?
-- 
Digital Wokan, Tribal Mage of the Electronics Age
Guerilla Linux Warrior