Hi Felipe, On Friday 23 Sep 2016 11:27:26 Felipe Balbi wrote: > yfw <nh26223@xxxxxxxxx> writes: > >>>>>> Here's one that actually compiles, sorry about that. > >>>>> > >>>>> No worries, I was sleeping ;-) > >>>>> > >>>>> I will test it out early next week. Thanks. > >>>> > >>>> meanwhile, how about some instructions on how to test this out myself? > >>>> How are you using g_webcam and what are you running on host side? Got a > >>>> nice list of commands there I can use? I think I can get to bottom of > >>>> this much quicker if I can reproduce it locally ;-) > >>> > >>> On device side: > >>> - first patch g_webcam as in my first email in this thread to enable > >>> 640x480@30fps; > >>> - # modprobe g_webcam streaming_maxpacket=3072 > >>> - then run uvc-gadget to feed the YUV frames; > >>> http://git.ideasonboard.org/uvc-gadget.git > >> > >> as is, g_webcam never enumerates to the host. It's calls to > >> usb_function_active() and usb_function_deactivate() are unbalanced. Do > >> you have any other changes to g_webcam? > > > > With uvc function gadget driver, user daemon uvc-gadget must be started > > before connect to host. Not sure whether g_webcam has same requirement. > > f_uvc.c should be handling that by means for usb_function_deactivate(). > > I'll try keeping cable disconnected until uvc-gadget is running. Things might have changed since we've discussed the issue several years ago, but back then at least the musb UDC started unconditionally connected. -- Regards, Laurent Pinchart -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
