[CentOS] Determine what physical port a USB device is attatched to

Wed Jun 4 04:02:53 UTC 2008
Joseph L. Casale <JCasale at activenetwerx.com>

>the UPS isn't a PCI device. the USB channels on the motherboard are,
>however, thats what you see.

I think I worded this bad :) I want to know what USB controller (it is a PCI device)
that the USB based UPS is attached to. Its only a coincidence, but it is attached to
the USB port belonging to a PCI device that I want to passthrough in Xen.

Thanks!
jlc