By changing some uvc_trace(UVC_TRACE_VIDEO.... to uvc_trace(UVC_TRACE_IOCTL.... I was able to get out this message:
uvcvideo: No fast enough alt setting for requested bandwidth. That gets printed the line before the return -EIO. I had options trace=255 from earlier. Hunted a bit and figured I could probably just set options trace=65535 to get UVC_TRACE_VIDEO to work too. Yep, one of the calls whose param I didn't change came out this time: uvcvideo: Device requested 5767680 B/frame bandwidth. Doesn't seem to make any difference whether I leave quirks=16 in or remove it. What are "alt settings"? Where can I go from here? _______________________________________________ Linux-uvc-devel mailing list [email protected] https://lists.berlios.de/mailman/listinfo/linux-uvc-devel
