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authorHans Verkuil <hverkuil@xs4all.nl>2009-03-08 17:02:10 -0300
committerMauro Carvalho Chehab <mchehab@redhat.com>2009-03-30 12:43:20 -0300
commit98ec633972a70cf71d71bc8762804f0af4792d08 (patch)
tree8f924a6d5804b56a24a58a1e60ea69d53996ece7 /include/media/v4l2-device.h
parent005759613b95264fba9138010f112bc138c857c2 (diff)
downloadop-kernel-dev-98ec633972a70cf71d71bc8762804f0af4792d08.zip
op-kernel-dev-98ec633972a70cf71d71bc8762804f0af4792d08.tar.gz
V4L/DVB (11021): v4l2-device: add a notify callback.
Add a notify callback to v4l2_device to let sub-devices notify their parent of special events. Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl> Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'include/media/v4l2-device.h')
-rw-r--r--include/media/v4l2-device.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/media/v4l2-device.h b/include/media/v4l2-device.h
index 5d7146d..3d8e96f 100644
--- a/include/media/v4l2-device.h
+++ b/include/media/v4l2-device.h
@@ -44,6 +44,9 @@ struct v4l2_device {
spinlock_t lock;
/* unique device name, by default the driver name + bus ID */
char name[V4L2_DEVICE_NAME_SIZE];
+ /* notify callback called by some sub-devices. */
+ void (*notify)(struct v4l2_subdev *sd,
+ unsigned int notification, void *arg);
};
/* Initialize v4l2_dev and make dev->driver_data point to v4l2_dev.
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