Using kernel 3.2.0 on ti am3354 , Kernel 2.6.35.7 on samsung s5pv210, Kernel 3.0.8 on samsung s5pv210, Linux ubuntu 3.13.0-24-generic #46-Ubuntu SMP Thu Apr 10 19:08:14 UTC 2014 i686 i686 i686 GNU/Linux Ubuntu 14.04 on x86 I find it impossible to start motion with two UVC cameras: uvcvideo: Failed to submit URB 0 (-28). Error starting stream. VIDIOC_STREAMON: No space left on device ioctl(VIDIOCGMBUF) - Error device does not support memory map When using one UVC camera with the same configuration it works fine. Is there a limitation in the UVC driver regarding simultaneous camera. Lowering the resolution on both two cameras to the minimum (160x120) open simultaneously doesn't help. However with the same camera of two UVC at 1280x720 open simultaneously on windows xp software platform it works fine. So it doesn't seem to be a USB bandwidth problem -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
