2010/9/23 Alan Stern <stern@xxxxxxxxxxxxxxxxxxx>: >> >I think so too. But I am not sure, since I don't know why the >> >request->length check is introduced, so I don't remove the check in >> >the patch and just fix the ZLP issue only. > > The check is there in order to prevent the controller driver from > sending _two_ ZLPs when the gadget driver queues a request with > request.length == 0 and request.zero set. Seems there is no such problem of sending _two_ ZLPs in the case. The request will be giveback immediately after the 1st ZLP is sent since request.length == request.actual == 0 will trigger giveback. -- Lei Ming -- 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
