> >Would you please share the use case how to reproduce it? > We checked again and found NCM gadget driver should not have this issue. > Please ignore this patch. > > However, we still observe similar issue in ECM and RNDIS gadget driver. Take > ECM as example, if we plug ECM gadget in high-speed host port first. And, the host > only set interface with alternate setting != 1 (alt != 1 in ecm_set_alt()) for ECM > gadget. Then, if we unplug gadget from high-speed host port to another super- > speed host port afterwards, we will see both in_ep->desc and out_ep->desc in ecm- > >port keep values for high-speed endpoints. Although NCM's implementation is > similar to ECM in this part, NCM doesn't have same issue as it only does > config_ep_by_speed() under if alt is 1. Does your UDC driver call composite_disconnect when disconnect from the host? It should set all desc to NULL at related function ->disable. Peter
