diff options
| author | Guennadi Liakhovetski <g.liakhovetski@gmx.de> | 2011-09-09 13:10:02 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2011-11-03 18:29:02 -0200 |
| commit | 1a99b972a86ba9c3984c042f7f641458ad4812d0 (patch) | |
| tree | 9df50bc45b66553be10aa9843b2467427c038676 /drivers/media | |
| parent | 3e0ec41c5c5ee14e27f65e28d4a616de34f59a97 (diff) | |
[media] V4L: add .g_std() core V4L2 subdevice operation
VIDIOC_G_STD can return the current TV-norm to the user in one of two ways:
if an .vidioc_g_std() ioctl operation is provided by the driver, it is
called, otherwise the value ot the .current_norm field of struct
video_device is returned. Since subdevice drivers currently have no access
to struct video_device objects, the only way to provide this information to
the user is by implementing a .g_std() method.
Signed-off-by: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media')
0 files changed, 0 insertions, 0 deletions