Hi, On Tue, Jul 23, 2013 at 12:53:53PM -0400, Alan Stern wrote: > > > I see. Doesn't the mass-storage gadget also use delayed status when > > > going into the _un_configured state? > > > > no it doesn't, we bail out early if config number is zero, look at > > composite.c and you'll see in case of configuration zero, we just make > > sure to disable all endpoints and don't call ->set_alt(): > > This is my fault, for not being more familiar with the composite > framework, and no doubt I will regret asking this, but... > > Doesn't that approach leave the function drivers sitting around with > all their resources still allocated? When do those resources get > deallocated? When the gadget disconnects from the host? which resources are you talking about ? Endpoints ? ->disable() should make sure to disable the endpoints, but it will only free the endpoints when the gadget driver is unbound. struct usb_requests will also be freed at ->disable() time. Does this answer your question ? cheers -- balbi
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