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authorHans Verkuil <hans.verkuil@cisco.com>2013-03-03 20:12:31 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2013-03-24 11:59:02 -0300
commit2180f92def1921397f422f278b3cc65751b749cc (patch)
tree3bf6090c56cd6eb0fc85107b8f6f17b1f9c80979 /Documentation
parent6cd247ef22e493e1884e576c066661538b031981 (diff)
[media] v4l2-core: add code to check for specific ops
This patch adds a v4l2_subdev_has_op() macro and a v4l2_device_has_op macro to quickly check if a specific subdev or any subdev supports a particular subdev operation. This makes it easy for drivers to disable certain ioctls if none of the subdevs supports the necessary functionality. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
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