On Mon, Jul 01, 2013 at 11:36:08PM +0000, Sultana wrote: > Hi, > > I am running Ubuntu 13.04 with Kernel 3.9.4 and working on usb drivers. I > find that the usb devices are getting loaded with default 'ehci-pci', but I > want to make them work through 'xhci-hcd'. Currently, xhci-hcd is configured > as a loadable module. If it's a loadable module, and it's not being loaded, then that usually means you don't have xhci hardware on your system. If you run 'lspci' does it show a XHCI controller? What is the output of that command? 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