On Wed, 7 Jun 2017, Alan Cox wrote: > On Wed, 7 Jun 2017 18:07:44 +0200 > Greg KH <greg@xxxxxxxxx> wrote: > > > On Wed, Jun 07, 2017 at 04:27:30PM +0100, Alan Cox wrote: > > > Booting 4.12-rc gives you a machine where neither the keyboard or the > > > mouse of the base-station work. > > > > > > Other USB devices work - including plugging in an external USB keyboard > > > and mouse. > > > > > > Removing the basestation and replugging it has no effect. > > > > > > The base station is seen in lsusb. > > > > What is the "basestation"? A USB hub? Something else? > > It's mostly USB. It has a non standard connector that plugs into the > T100TA in tablet form. The non standard connector unfortunately means it > can't be plugged into a standard USB hub to detect. > > On unplug it logs the expected > > usb-1-3: USB disconnect, device number 14 > > on reconnect I see > > usb 1-3: new full-speed USB device number 16 using xhci_hcd > usb 1-3: New USB device found, idVendor=0b05, idProduct=17e0 > usb 1-3: New USB device strings: Mfr=1, Product=2, SerialNumber=0 > usb 1-3: Product: ASUS Base Station(T100) > usb 1-3: Manufacturer: ASUSTek COMPUTER INC. > > It's a USB keyboard, touchpad, storage and USB connector for external > device. > > The external device connected through it removes and reconnects just fine. > > On older kernels it's coupled with a message > > input: ASUSTek COMPUTER INC. ASUS Base Station (T100) as /devices/..... / > input# and binds to a HID Keyboard, HID device and HID mouse as 3 input > devices. Normally in this situation I'd recommend bisection. However, this case may be simple enough for a usbmon trace to provide the answer. Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-input" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
