When two devices are connected at the same time, there is a probabilistic identification of the device. If the other device is removed, it can be recognized normally. At present, three roads are used. If the second road and the third road are simultaneously mounted, the third road will have a high probability of not identifying the equipment. Remove the second device, the third channel can be recognized normally. The plug-in module is a full-speed HID device
pls help check it and review the SCH and give some suggestions how to debug it, tks!
