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[media] v4l2-core: add code to check for specific ops
authorHans Verkuil <hans.verkuil@cisco.com>
Sun, 3 Mar 2013 23:12:31 +0000 (20:12 -0300)
committerMauro Carvalho Chehab <mchehab@redhat.com>
Sun, 24 Mar 2013 14:59:02 +0000 (11:59 -0300)
commit2180f92def1921397f422f278b3cc65751b749cc
tree3bf6090c56cd6eb0fc85107b8f6f17b1f9c80979tree | snapshot (tar.gz zip)
parent6cd247ef22e493e1884e576c066661538b031981commit | 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>
include/media/v4l2-device.h diff | blob | blame | history
include/media/v4l2-subdev.h diff | blob | blame | history