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Commit dfa9a5ae authored by Hans Verkuil's avatar Hans Verkuil Committed by Mauro Carvalho Chehab
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V4L/DVB (10134): v4l2 doc: set v4l2_dev instead of parent. 



Update the documentation now that the v4l2_dev field is in.

Signed-off-by: default avatarHans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: default avatarMauro Carvalho Chehab <mchehab@redhat.com>
parent 50a2a8b3

Documentation/video4linux/v4l2-framework.txt

+2 −4
Original line number Original line Diff line number Diff line
@@ -390,8 +390,7 @@ allocated memory. 




You should also set these fields:

You should also set these fields:





- parent: set to the parent device (same device as was used to register

- v4l2_dev: set to the v4l2_device parent device.

  v4l2_device).

- name: set to something descriptive and unique.

- name: set to something descriptive and unique.

- fops: set to the file_operations struct.

- fops: set to the file_operations struct.

- ioctl_ops: if you use the v4l2_ioctl_ops to simplify ioctl maintenance

- ioctl_ops: if you use the v4l2_ioctl_ops to simplify ioctl maintenance
@@ -516,5 +515,4 @@ void *video_drvdata(struct file *file); 




You can go from a video_device struct to the v4l2_device struct using:

You can go from a video_device struct to the v4l2_device struct using:





struct v4l2_device *v4l2_dev = dev_get_drvdata(vdev->parent);

struct v4l2_device *v4l2_dev = vdev->v4l2_dev;