FreeBSD-5's USB subsystem

[Matthew Dillon <dillon@xxxxxxxxxxxxxxxxxxxx>]

    I've managed to bring in FreeBSD-5's USB subsystem and have gotten it
    to compile.  Since it is basically a port from NetBSD/OpenBSD there
    were not too many 5isms to deal with, fortunately!

    I still have a bunch of work to do but I think I'll be able to commit
    it tonight.

    Cross your fingers!

						-Matt