On Mon, Aug 11, 2014 at 09:44:05AM -0400, Alan Stern wrote: > On Mon, 11 Aug 2014, Felipe Balbi wrote: > > > > > I don't know what exactly problem you met, but current pullup dp during loading > > > > gadget driver behavior is not suitable for webcam and android use case even vbus > > > > is there. > > > > > > Why not? What's wrong with it? > > > > g_uvc needs a userspace counterpart. If we connect to the host before > > userspace is ready, we might connect as a non-usable function. > > Okay, but can't that be fixed in g_uvc? Have it disable the pullup > until the userspace component is ready, then enable the pullup. that might be too late, although propbably not catastrophic. > I'm not sure how this could be made to work in a composite gadget, > though. What if there were two uvc functions? The pullup would have you can refcount the disables, right ? > to remain disabled until both userspace components were ready. right -- balbi
Attachment:
signature.asc
Description: Digital signature
