ubuntu@arm:~$ export LIBV4L2_LOG_FILENAME=libv4l2_debug.log ubuntu@arm:~$ octave GNU Octave, version 3.8.1 Copyright (C) 2014 John W. Eaton and others. This is free software; see the source code for copying conditions. There is ABSOLUTELY NO WARRANTY; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. For details, type 'warranty'. Octave was configured for "arm-unknown-linux-gnueabihf". Additional information about Octave is available at http://www.octave.org. Please contribute if you find this software useful. For more information, visit http://www.octave.org/get-involved.html Read http://www.octave.org/bugs.html to learn how to submit bug reports. For information about changes from previous versions, type 'news'. octave:1> test @videoinput/videoinput Failed to query video capabilities: Inappropriate ioctl for device PASSES 3 out of 3 tests octave:2> test @videoinput/get ***** xtest obj = videoinput("v4l2", __test__device__); f = get(obj, "VideoFormat"); !!!!! known failure TODO not implemented PASSES 4 out of 4 tests (1 expected failure) octave:3> test @videoinput/set ***** xtest obj = videoinput ("v4l2", __test__device__); fmts = set (obj, 'VideoFormat'); set (obj, 'VideoFormat', 'RGB3'); set (obj, 'VideoFormat', fmts(2).pixelformat); !!!!! known failure not implemented (fixed to V4L2_PIX_FMT_RGB24 warning: V4L2_CAP_TIMEPERFRAME is not supported warning: V4L2_CAP_TIMEPERFRAME is not supported PASSES 6 out of 6 tests (1 expected failure) octave:4> test @videoinput/getsnapshot ^C^C^C^C^CPress Control-C again to abort. ^Cpanic: Interrupt -- stopping myself...