> Here you see usb_set_interface() called from the UVC driver under > inappropriate circumstances. To fix the problem it will be necessary > to fix the UVC driver. It should not allow itself to be unbound from > the device while a user-driven operation, such as > uvc_video_start_transfer(), is in progress. Thanks for your explanation, I can see that this is indeed what happens. I produced a small documentation update patch, hopefully I got it right this time. I will notify linux-media about the issue. Thanks, Michal