litmus-rt.git/Documentation/video4linux, branch linux-tip

[media] Support for Elgato Video Capture

2010-10-22T22:55:43+00:00

This patch allows this device successfully to show video, at least from
its composite input.

I have no information about the true hardware contents of this device and so
this patch is based solely on fiddling with things until it worked. The
chip appears to be em2860, and the closest device with equivalent inputs
is the Typhoon DVD Maker. Copying the settings for that device appears
to do the trick. That's what this patch does.

[mchehab@redhat.com: update CARDLIST.em28xx accordingly, via script]
Signed-off-by: Adrian Taylor 
Reviewed-by: Jarod Wilson 
Signed-off-by: Mauro Carvalho Chehab

[media] Documentation/video4linux/CARDLIST.[cx88|saa7134]

2010-10-22T22:50:50+00:00

Fix a few troubles at the card entries

Signed-off-by: Mauro Carvalho Chehab

[media] radio-mr800: fix locking order

2010-10-21T03:18:15+00:00

Don't hold the lock before unregistering the device, since when the
device is unregistered the datastruct containing the lock may be freed
(if the refcount went to 0).

Also fixed the framework documentation that erroneously suggested the
wrong locking order as well.

Reported-by: David Ellingsworth 
Signed-off-by: Hans Verkuil 
Acked-by: David Ellingsworth 
Signed-off-by: Mauro Carvalho Chehab

V4L/DVB: v4l2: add core serialization lock

2010-10-21T03:06:14+00:00

Drivers can optionally set a pointer to a mutex in struct video_device.
The core will use that to lock before calling open, read, write, unlocked_ioctl,
poll, mmap or release.

Updated the documentation as well and ensure that v4l2-event knows about the
lock: it will unlock it before doing a blocking wait on an event and relock it
afterwards.

Ensure that the 'video_is_registered' check is done when the lock is held:
a typical disconnect will take the lock as well before unregistering the
device nodes, so to prevent race conditions the video_is_registered check
should also be done with the lock held.

Signed-off-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab

V4L/DVB: v4l2-dev: after a disconnect any ioctl call will be blocked

2010-10-21T03:06:14+00:00

Until now all fops except release and (unlocked_)ioctl returned an error
after the device node was unregistered. Extend this as well to the ioctl
fops. There is nothing useful that an application can do here and it
complicates the driver code unnecessarily.

Signed-off-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab

V4L/DVB: gspca - sonixj: Add webcam 0c45:612b

2010-10-21T03:05:54+00:00

Signed-off-by: Alexander Goncharov 
Signed-off-by: Jean-François Moine 
Signed-off-by: Mauro Carvalho Chehab

V4L/DVB: gspca - sonixj: Webcam 0c45:6102 added

2010-10-21T03:05:54+00:00

Tested-by: Simon Danner 
Signed-off-by: Jean-François Moine 
Signed-off-by: Mauro Carvalho Chehab

V4L/DVB: Documentation: update now that the vtx/videotext API has been removed

2010-10-21T03:05:48+00:00

Remove all references to /dev/vtx in the documentation, except for
some historical comments in dev-teletext.xml.

Documentation/devices.txt is not updated, this will go through Alan Cox
who maintains this file.

Signed-off-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab

V4L/DVB: v4l: Add a v4l2_subdev host private data field

2010-10-21T03:04:52+00:00

The existing priv field stores subdev private data owned by the subdev
driver. Host (bridge) drivers might need to store per-subdev
host-specific data, such as a pointer to platform data.

Add a v4l2_subdev host_priv field to store host-specific data, and
rename the existing priv field to dev_priv.

Signed-off-by: Laurent Pinchart 
Acked-by: Hans Verkuil 
Signed-off-by: Mauro Carvalho Chehab

V4L/DVB: Documentation: add v4l2-controls.txt documenting the new controls API

2010-08-09T02:43:04+00:00

Signed-off-by: Hans Verkuil 
Reviewed-by: Laurent Pinchart 
Signed-off-by: Mauro Carvalho Chehab