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authorHans Verkuil <hans.verkuil@cisco.com>2012-09-14 07:15:03 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2012-10-01 17:07:07 -0300
commit34a6b7d093d8fe738ada191b36648d00bc18b7eb (patch)
tree854584731068996a381af03b95884911c07074b5 /drivers/media/v4l2-core/v4l2-device.c
parenta4f64407b9b33122a58cb78afd73f86d4bb022c4 (diff)
[media] v4l2-ctrls: add a filter function to v4l2_ctrl_add_handler
With a filter function you can control more precisely which controls are added. This is useful in particular for radio device nodes for combined TV/Radio cards where you want to show just the radio-specific controls and not controls like brightness. Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'drivers/media/v4l2-core/v4l2-device.c')
-rw-r--r--drivers/media/v4l2-core/v4l2-device.c2
1 files changed, 1 insertions, 1 deletions
diff --git a/drivers/media/v4l2-core/v4l2-device.c b/drivers/media/v4l2-core/v4l2-device.c
index 1f203b85a637..513969fa695d 100644
--- a/drivers/media/v4l2-core/v4l2-device.c
+++ b/drivers/media/v4l2-core/v4l2-device.c
@@ -166,7 +166,7 @@ int v4l2_device_register_subdev(struct v4l2_device *v4l2_dev,
}
/* This just returns 0 if either of the two args is NULL */
- err = v4l2_ctrl_add_handler(v4l2_dev->ctrl_handler, sd->ctrl_handler);
+ err = v4l2_ctrl_add_handler(v4l2_dev->ctrl_handler, sd->ctrl_handler, NULL);
if (err) {
if (sd->internal_ops && sd->internal_ops->unregistered)
sd->internal_ops->unregistered(sd);

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