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| /linux/include/media/ |
| H A D | v4l2-fh.h | diff dfddb2441f39e8c0254504516be35b854addf6fa Sat Jan 08 13:38:02 CET 2011 Hans Verkuil <hverkuil@xs4all.nl> [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>
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