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3 Commits

Author SHA1 Message Date
Laurent Pinchart
0a4f8d0798 V4L/DVB: event: Export the v4l2_event_init and v4l2_event_dequeue functions 
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Acked-by: Sakari Ailus <sakari.ailus@maxwell.research.nokia.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
 2010-05-19 12:58:24 -03:00
Sakari Ailus
f3cd385a9c V4L/DVB: V4L: Events: Replace bad WARN_ON() with assert_spin_locked() 
spin_is_locked() always returns zero when spinlock debugging is
disabled on a single CPU machine. Replace WARN_ON() with
assert_spin_locked().

Thanks to Laurent Pinchart for spotting this!

Signed-off-by: Sakari Ailus <sakari.ailus@maxwell.research.nokia.com>
Acked-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
 2010-05-19 12:58:23 -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