linux/Documentation
Hans Verkuil 583aa3a9b5 [media] V4L2: Add per-device-node capabilities
If V4L2_CAP_DEVICE_CAPS is set, then the new device_caps field is filled with
the capabilities of the opened device node.

The capabilities field traditionally contains the capabilities of the physical
device, being a superset of all capabilities available at the several device
nodes. E.g., if you open /dev/video0, then if it contains VBI caps then that means
that there is a corresponding vbi node as well. And the capabilities field of
both the video and vbi nodes should contain identical caps.

However, it would be very useful to also have a capabilities field that contains
just the caps for the currently open device, hence the new CAP bit and field.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
2012-01-23 16:34:27 -02:00
..
2011-09-27 18:08:04 +02:00
2011-09-27 18:08:04 +02:00
2010-02-24 13:51:32 +01:00
2011-09-27 18:08:04 +02:00
2011-06-07 16:06:01 +02:00
2011-03-31 11:26:23 -03:00
2011-11-04 15:52:51 -04:00
2011-06-13 13:43:05 +02:00
2011-03-31 11:26:23 -03:00
2011-03-31 11:26:23 -03:00
2011-09-27 18:08:04 +02:00
2011-03-31 11:26:23 -03:00
2011-11-02 16:07:02 -07:00
2011-12-11 10:32:23 -08:00
2011-12-27 11:27:12 +01:00
2012-01-16 12:34:12 +04:00
2011-09-27 18:08:04 +02:00
2011-03-31 11:26:23 -03:00
2011-09-27 18:08:04 +02:00
2012-01-04 16:04:30 -08:00
2011-03-31 11:26:23 -03:00
2010-04-08 11:34:34 +02:00
2011-03-31 11:26:23 -03:00
2011-03-31 11:26:23 -03:00
2012-01-13 10:12:23 -08:00
2011-12-27 11:27:12 +01:00
2011-03-31 11:26:23 -03:00
2011-12-12 14:14:31 -08:00
2011-03-31 11:26:23 -03:00
2011-09-27 18:08:04 +02:00
2009-07-01 22:36:22 +02:00
2011-03-07 13:20:05 -08:00
2009-04-27 12:00:27 -07:00
2009-04-27 12:00:27 -07:00
2011-06-13 13:43:05 +02:00
2011-09-27 18:08:04 +02:00
2011-09-27 18:08:04 +02:00
2012-01-03 09:10:08 +01:00
2011-09-27 18:08:04 +02:00
2011-03-31 11:26:23 -03:00
2010-07-19 10:56:54 +02:00
2010-03-16 11:47:56 +01:00
2012-01-02 13:04:55 +01:00