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| author | Laurent Pinchart <laurent.pinchart@ideasonboard.com> | 2009-12-09 08:38:49 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2011-03-21 20:32:42 -0300 |
| commit | 2096a5dcf9704f5a86ecba37169eb813aaf0431c (patch) | |
| tree | 21e7d870302a7c6748667a785b465a7a84805228 /include/media/v4l2-device.h | |
| parent | 0070d91e5b5ae594116202ab7d62d8264830b1cd (diff) | |
| download | linux-stable-2096a5dcf9704f5a86ecba37169eb813aaf0431c.tar.gz linux-stable-2096a5dcf9704f5a86ecba37169eb813aaf0431c.tar.bz2 linux-stable-2096a5dcf9704f5a86ecba37169eb813aaf0431c.zip | |
[media] v4l: subdev: Add device node support
Create a device node named subdevX for every registered subdev.
As the device node is registered before the subdev core::s_config
function is called, return -EGAIN on open until initialization
completes.
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Vimarsh Zutshi <vimarsh.zutshi@gmail.com>
Acked-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'include/media/v4l2-device.h')
| -rw-r--r-- | include/media/v4l2-device.h | 6 |
1 files changed, 6 insertions, 0 deletions
diff --git a/include/media/v4l2-device.h b/include/media/v4l2-device.h index b16f307d471a..78b11e5a6db7 100644 --- a/include/media/v4l2-device.h +++ b/include/media/v4l2-device.h @@ -96,6 +96,12 @@ int __must_check v4l2_device_register_subdev(struct v4l2_device *v4l2_dev, wasn't registered. In that case it will do nothing. */ void v4l2_device_unregister_subdev(struct v4l2_subdev *sd); +/* Register device nodes for all subdev of the v4l2 device that are marked with + * the V4L2_SUBDEV_FL_HAS_DEVNODE flag. + */ +int __must_check +v4l2_device_register_subdev_nodes(struct v4l2_device *v4l2_dev); + /* Iterate over all subdevs. */ #define v4l2_device_for_each_subdev(sd, v4l2_dev) \ list_for_each_entry(sd, &(v4l2_dev)->subdevs, list) |