USB problem

[Robert Huff]

	On a machine running:

FreeBSD 8.0-CURRENT #0: Tue Jan 20 10:40:57 EST 2009 i386 

	one of the USB hubs has decided not to play nice with others.
	There are device attached to this hub, but none in use.  Is it
possible to "reset" the hub and all downstream devices, hopefully to
be re-scanned, recognized and re-attached?
	(It looks like "usbconfig" might be the right tool ... but the
documentation has no examples and I don't want to make things
worse.)

	Respectfully,


			Robert Huff