On Mon, Nov 14, 2011 at 11:56:33PM -0800, Kuninori Morimoto wrote: > > Hi Felipe > > > > Some USB driver call usb_ep_disable() without calling usb_ep_enable(). > > > > isn't the fix on "some USB driver" then ? I can take this one in just to > > be safe, but I would like to see a WARN_ON_ONCE() so that we catch such > > drivers :-) > > Thank you. I thought it is my drivers side issue. > Below is WARN_ON_ONCE() result. > I can got it by... > > 1) insmod g_mass_storage.ko > 2) connect cable > 3) disconnect cable aren't you lacking something here ? Whenever the cable is disconnected, you should signal that to gadget driver so that it has the oportunity to cancel pending transfers and disable endpoints. > 4) re-connect cable => WARN why are you disabling endpoints when you reconnect the cable ? -- balbi
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