USB support works on alpha. (At least UHCI works fine) Reorganize usb devices to be like i386/GENERIC
USB support works on alpha. (At least UHCI works fine)
Reorganize usb devices to be like i386/GENERIC

orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars,orumin/openbsd-efivars