Abraham van der Merwe wrote:
You can't. The type is not a bitfield: struct v4l2_capability #define V4L2_TYPE_CAPTURE 0
I suspect you're using an outdated v4l2 spec, i.e. from before the re-design. Latest videodev2.h lists types as bitfield: /* Values for 'capabilities' field */ #define V4L2_CAP_VIDEO_CAPTURE 0x00000001 #define V4L2_CAP_VIDEO_OUTPUT 0x00000002 #define V4L2_CAP_VIDEO_OVERLAY 0x00000004 #define V4L2_CAP_VBI_CAPTURE 0x00000010 /*...*/ See also the current v4l2 draft at http://bytesex.org/v4l/spec/ bye, -tom
