Andrew Gillis wrote: > Sep 17 10:07:38 sonicorbiter kernel: xhci_hcd 0000:06:00.0: ERROR: unexpected command completion code 0x11. This means that the USB controller does not like what the controller driver has told it to do. This could be a bug in some driver, but if it happens only with that NEC controller, the bug is likely to be there. > Sep 17 10:07:38 sonicorbiter kernel: usb 1-2: Warning! Unlikely big volume range (=32767), cval->res is proba This is a firmware bug, but probably unrelated. > Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub This is not the sound device. > Sep 17 10:07:39 sonicorbiter kernel: usb 1-2: USB disconnect, device number 3 Either the USB controller or the device got really confused. Try to get the "lsusb -v" output on some other controller/PC. Regards, Clemens -- 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