On Wed, 19 Jun 2013, Ming Lei wrote: > > There's a good chance this problem was caused by a change in the > > xhci-hcd driver. > > I am wondering why xhci-hcd may cause the problem since the affected > hub is 'Intel Corp. Integrated Rate Matching Hub' which is connected to > EHCI root hub. It's just a guess. You pointed out that the problem seems to be related to port routing, and the port routing code is part of the xHCI driver. The original bug report on Launchpad doesn't mention any earlier kernels working. Maybe the problem was caused by a change somewhere else, such as a change in the BIOS. Alan Stern -- 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
