path: root/drivers/media/video/cx18
diff options
authorHans Verkuil <>2011-01-08 09:38:02 -0300
committerMauro Carvalho Chehab <>2011-03-22 16:37:58 -0300
commitdfddb2441f39e8c0254504516be35b854addf6fa (patch)
tree7fd4bade365e394e38aee0764adca945a5bf394d /drivers/media/video/cx18
parent73cb42068cff419e72456940c713ceb5efa68c2a (diff)
[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 <> Signed-off-by: Mauro Carvalho Chehab <>
Diffstat (limited to 'drivers/media/video/cx18')
0 files changed, 0 insertions, 0 deletions