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| author |   Hans Verkuil <hverkuil@xs4all.nl> | 2011-01-08 09:38:02 -0300 |
|---|---|---|
| committer |   Mauro Carvalho Chehab <mchehab@redhat.com> | 2011-03-22 16:37:58 -0300 |
| commit | dfddb2441f39e8c0254504516be35b854addf6fa (patch) | |
| tree | 7fd4bade365e394e38aee0764adca945a5bf394d /drivers/media/video/meye.c | |
| parent | [media] v4l2-fh: add v4l2_fh_open and v4l2_fh_release helper functions (diff) | |
| download | linux-dev-dfddb2441f39e8c0254504516be35b854addf6fa.tar.xz linux-dev-dfddb2441f39e8c0254504516be35b854addf6fa.zip | |
[media] v4l2-fh: add v4l2_fh_is_singular
Several drivers need to do something when the first filehandle is opened
or the last filehandle is closed. Most implement some use count mechanism,
but if they use v4l2_fh, then you can also just check if this is the only
filehandle for the device node. A simple helper function can do this.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/video/meye.c')
0 files changed, 0 insertions, 0 deletions