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| author | Németh Márton <nm127@freemail.hu> | 2009-04-29 15:57:24 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-06-16 18:20:58 -0300 |
| commit | 925d74ae717c9a12d3618eb4b36b9fb632e2cef3 (patch) | |
| tree | 29ed0bfccb473e9e1eafeb115989190898a4aed3 /include/linux | |
| parent | 3e9a489743ea87663e9ff638cb9b8fe13805a327 (diff) | |
V4L/DVB (11736): videobuf: modify return value of VIDIOC_REQBUFS ioctl
The V4L2 ioctls usually return 0 when the operation was successful
and -1 in case of error. Currently VIDIOC_REQBUFS returns the
number of buffers which is redundant because this information is
available in count field of struct v4l2_requestbuffers. The
V4L2 API specification, revision 0.24 [1] explicitly specifies for
VIDIOC_REQBUFS that the return value shall be 0 on success.
The patch was tested with v4l-test 0.13 [2] with vivi driver.
References:
[1] V4L2 API specification, revision 0.24
http://v4l2spec.bytesex.org/spec/r13696.htm
[2] v4l-test: Test environment for Video For Linux Two API
http://v4l-test.sourceforge.net/
Signed-off-by: Márton Németh <nm127@freemail.hu>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'include/linux')
0 files changed, 0 insertions, 0 deletions