On Mon, May 04, 2009 at 10:15:34PM -0700, Hal Murray wrote: > > Yes, I 've bumped into that once already. It is not a very big deal if > > you don't reboot very often, but I guess I should see if there is any > > way to have somewhat persistent naming for ports based on their > > physical location. I doubt this is implementable with current > > technology though. (At least in a straightforward way) > > Would somebody please say a bit more about this area. What "number" space > are we discussing? > > Do ports get renumbered on booting because of timing issues (race > conditions)? I guess I would expect that if a system had 2 USB host > controllers./hubs on a PCI bus with one type X gizmo on each USB bus. > > Another possibility is that things get assigned numbers in the order they are > plugged in and then get a new set of numbers based on probe order when the > system is rebooted. Both of these can happen. Also PCI buses can enumerate in different ways, as a laptop that I have here likes to do every 3rd boot or so. thanks, greg k-h -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
