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path: root/drivers/media/video/v4l2-event.c
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2010-05-19V4L/DVB: event: Export the v4l2_event_init and v4l2_event_dequeue functionsLaurent Pinchart
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>
2010-05-19V4L/DVB: V4L: Events: Replace bad WARN_ON() with assert_spin_locked()Sakari Ailus
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>
2010-05-19V4L/DVB: V4L: Events: Add backendSakari Ailus
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>