On Thu, 22 Aug 2013, Joseph Yasi wrote: > Hi, > > I just recently moved an internal USB card reader from an ehci machine > to an xhci machine, and dmesg is filled with this message over and > over again: > [ 1596.047684] usb 1-8: reset high-speed USB device number 4 using xhci_hcd > [ 1596.090902] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called > with disabled ep ffff88041b06d700 > [ 1596.090904] xhci_hcd 0000:00:14.0: xHCI xhci_drop_endpoint called > with disabled ep ffff88041b06d740 > > This did not happen on the ehci machine. Oddly, the card reader still > works, but it just keeps printing that message in the log. Can you post usbmon traces for the card reader from the two machines? 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
