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| author | Hans Verkuil <hans.verkuil@cisco.com> | 2014-07-18 07:58:42 +0200 |
|---|---|---|
| committer | Mauro Carvalho Chehab <m.chehab@samsung.com> | 2014-07-22 05:41:23 +0200 |
| commit | 12c78e665f96b3f73dc0b6a6190a4871fe526293 (patch) | |
| tree | bf763f92203365e81ae31abfd0bb919ee96769e3 /Documentation/DocBook/media/v4l/dev-sliced-vbi.xml | |
| parent | [media] videodev2.h: add defines for the VBI field start lines (diff) | |
| download | linux-12c78e665f96b3f73dc0b6a6190a4871fe526293.tar.xz linux-12c78e665f96b3f73dc0b6a6190a4871fe526293.zip | |
[media] DocBook media: document new VBI defines
Add defines for the start line numbers of each field for both
525 and 625 line formats.
Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
Diffstat (limited to 'Documentation/DocBook/media/v4l/dev-sliced-vbi.xml')
| -rw-r--r-- | Documentation/DocBook/media/v4l/dev-sliced-vbi.xml | 9 |
1 files changed, 8 insertions, 1 deletions
diff --git a/Documentation/DocBook/media/v4l/dev-sliced-vbi.xml b/Documentation/DocBook/media/v4l/dev-sliced-vbi.xml index 548f8ea28dee..7a8bf3011ee9 100644 --- a/Documentation/DocBook/media/v4l/dev-sliced-vbi.xml +++ b/Documentation/DocBook/media/v4l/dev-sliced-vbi.xml @@ -185,7 +185,14 @@ tables, sigh. --></para></entry> <entry></entry> <entry spanname="hspan">Drivers must set <structfield>service_lines</structfield>[0][0] and -<structfield>service_lines</structfield>[1][0] to zero.</entry> +<structfield>service_lines</structfield>[1][0] to zero. +The <constant>V4L2_VBI_ITU_525_F1_START</constant>, +<constant>V4L2_VBI_ITU_525_F2_START</constant>, +<constant>V4L2_VBI_ITU_625_F1_START</constant> and +<constant>V4L2_VBI_ITU_625_F2_START</constant> defines give the start +line numbers for each field for each 525 or 625 line format as a +convenience. Don't forget that ITU line numbering starts at 1, not 0. +</entry> </row> <row> <entry>__u32</entry> |