Am Dienstag, den 04.02.2020, 19:52 +0200 schrieb Lauri Jakku: > -- v1 ------------------------------------------------------------ > send, 20ms apart, control messages, if error is timeout. > > There is multiple reports of random behaviour of USB HID devices. > > I have mouse that acts sometimes quite randomly, I debugged with > logs others have published that there is HW timeouts that leave > device in state that it is errorneus. > > To fix this I introduced retry mechanism in root of USB HID drivers. > > Fix does not slow down operations at all if there is no -ETIMEDOUT > got from control message sending. If there is one, then sleep 20ms > and try again. Retry count is 20 witch translates maximium of 400ms > before giving up. > > NOTE: This does not sleep anymore then before, if all is golden. This is well if retries help. In case any other form of error handling, such as a reset, are needed, these retries will hamper recovery. It seems to me that you really should use a separate function for this. Regards Oliver
