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| author | Hans Verkuil <hverkuil@xs4all.nl> | 2008-12-23 13:42:25 -0300 |
|---|---|---|
| committer | Mauro Carvalho Chehab <mchehab@redhat.com> | 2009-01-02 17:11:19 -0200 |
| commit | c7dd09dabc278b03980c8e93d0eee3843b5ad514 (patch) | |
| tree | c03ba0b990e588da7b34365dc8efe4300e55408a /Documentation/video4linux/v4l2-framework.txt | |
| parent | bec43661b1dc0075b7445223ba775674133b164d (diff) | |
| download | lwn-c7dd09dabc278b03980c8e93d0eee3843b5ad514.tar.gz lwn-c7dd09dabc278b03980c8e93d0eee3843b5ad514.zip | |
V4L/DVB (10136): v4l2 doc: update v4l2-framework.txt
Mention the new v4l2_file_operations struct.
Signed-off-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>
Diffstat (limited to 'Documentation/video4linux/v4l2-framework.txt')
| -rw-r--r-- | Documentation/video4linux/v4l2-framework.txt | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/Documentation/video4linux/v4l2-framework.txt b/Documentation/video4linux/v4l2-framework.txt index 38d054aa0e0f..3b483c1e0124 100644 --- a/Documentation/video4linux/v4l2-framework.txt +++ b/Documentation/video4linux/v4l2-framework.txt @@ -392,13 +392,16 @@ You should also set these fields: - v4l2_dev: set to the v4l2_device parent device. - name: set to something descriptive and unique. -- fops: set to the file_operations struct. +- fops: set to the v4l2_file_operations struct. - ioctl_ops: if you use the v4l2_ioctl_ops to simplify ioctl maintenance (highly recommended to use this and it might become compulsory in the future!), then set this to your v4l2_ioctl_ops struct. -If you use v4l2_ioctl_ops, then you should set .unlocked_ioctl to -__video_ioctl2 or .ioctl to video_ioctl2 in your file_operations struct. +If you use v4l2_ioctl_ops, then you should set either .unlocked_ioctl or +.ioctl to video_ioctl2 in your v4l2_file_operations struct. + +The v4l2_file_operations struct is a subset of file_operations. The main +difference is that the inode argument is omitted since it is never used. video_device registration |