On Thu, Mar 21, 2019 at 03:42:46PM +0100, Paul Cercueil wrote: > When the musb is shutdown, for instance when the driver is unloaded, > force-disable the pullup. Otherwise, the host will still see the gadget > device even after the shutdown. how would this happen? when musb-hdrc driver is unloaded, udc core removes the bound gadget driver which calls musb_gadget_pullup() to disable the pullup. Regards, -Bin.