On Wed, 24 Oct 2012, Matthias Schniedermeyer wrote: > > According to this, it should work if you do: > > > > echo 1 >/sys/bus/usb/devices/2-3/bConfigurationValue > > > > Note that the "2-3" part may change from time to time. Always use the > > values the showed up in the log when the device was turned on. > > This didn't work: > > I tried it twice, with a few minutes wait in between: > - snip - > leeloo:~ # echo 1 >/sys/bus/usb/devices/2-3/bConfigurationValue > -bash: echo: write error: Invalid argument > leeloo:~ # echo 1 >/sys/bus/usb/devices/2-3/bConfigurationValue > -bash: echo: write error: Invalid argument > - snip - > > The syslog-lines: > Oct 24 18:09:11 leeloo kernel: [930673.742358] usb 2-3: new SuperSpeed USB device number 13 using xhci_hcd > Oct 24 18:09:21 leeloo kernel: [930683.743447] usb 2-3: New USB device found, idVendor=174c, idProduct=5106 > Oct 24 18:09:21 leeloo kernel: [930683.743452] usb 2-3: New USB device strings: Mfr=2, Product=3, SerialNumber=1 > Oct 24 18:09:21 leeloo kernel: [930683.743454] usb 2-3: Product: AS2105 > Oct 24 18:09:21 leeloo kernel: [930683.743456] usb 2-3: Manufacturer: ASMedia > Oct 24 18:09:26 leeloo kernel: [930688.738595] usb 2-3: can't set config #1, error -110 > > First-Try: > Oct 24 18:09:51 leeloo kernel: [930713.543126] xhci_hcd 0000:00:14.0: Trying to add endpoint 0x81 without dropping it. Okay, this looks like a bug in the xhci-hcd driver. It may possibly have been fixed already in the 3.7-rc2 kernel; you could try out that version. If that also gives the same error message about adding endpoint 0x81, maybe Sarah can take a look at the problem. 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
