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V4L/DVB (13549): v4l: Add video_device_node_name function

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Many drivers access the device number (video_device::v4l2_devnode::num)
in order to print the video device node name. Add and use a helper
function to retrieve the video_device node name.

Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
This commit is contained in:
Laurent Pinchart 2009-11-27 13:56:50 -03:00 • committed by Mauro Carvalho Chehab
parent a3a9e287da
commit eac8ea536a
3 changed files with 21 additions and 4 deletions
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5
include/media/v4l2-dev.h
View file

@ -141,6 +141,11 @@ static inline void *video_drvdata(struct file *file)
return video_get_drvdata(video_devdata(file));
}
static inline const char *video_device_node_name(struct video_device *vdev)
{
return dev_name(&vdev->dev);
}
static inline int video_is_unregistered(struct video_device *vdev)
{
return test_bit(V4L2_FL_UNREGISTERED, &vdev->flags);