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3 Commits

Author SHA1 Message Date
Sakari Ailus
d3d7c96356 V4L/DVB: V4L: Events: Support event handling in do_ioctl 
Add support for event handling to do_ioctl.

Signed-off-by: Sakari Ailus <sakari.ailus@maxwell.research.nokia.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
 2010-05-19 12:58:07 -03:00
Sakari Ailus
c3b5b0241f V4L/DVB: V4L: Events: Add backend 
Add event handling backend to V4L2. The backend handles event subscription
and delivery to file handles. Event subscriptions are based on file handle.
Events may be delivered to all subscribed file handles on a device
independent of where they originate from.

Signed-off-by: Sakari Ailus <sakari.ailus@maxwell.research.nokia.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
 2010-05-19 12:58:06 -03:00
Sakari Ailus
1babcb460f V4L/DVB: V4L: File handles 
This patch adds a list of v4l2_fh structures to every video_device.
It allows using file handle related information in V4L2. The event interface
is one example of such use.

The use of v4l2_fh is not mandatory for drivers.

Signed-off-by: Sakari Ailus <sakari.ailus@maxwell.research.nokia.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
 2010-05-19 12:58:04 -03:00