[media] DocBook/media/v4l: il_* fields always 0 for progressive formats

Clarify that the il_vfrontporch, il_vsync and il_vbackporch fields must
always be 0 for progressive formats.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <m.chehab@samsung.com>
This commit is contained in:
Hans Verkuil 2013-07-29 08:40:57 -03:00 committed by Mauro Carvalho Chehab
parent 2576415846
commit 5d2db817df

View File

@ -156,19 +156,19 @@ bit 0 (V4L2_DV_VSYNC_POS_POL) is for vertical sync polarity and bit 1 (V4L2_DV_H
<entry>__u32</entry>
<entry><structfield>il_vfrontporch</structfield></entry>
<entry>Vertical front porch in lines for the even field (aka field 2) of
interlaced field formats.</entry>
interlaced field formats. Must be 0 for progressive formats.</entry>
</row>
<row>
<entry>__u32</entry>
<entry><structfield>il_vsync</structfield></entry>
<entry>Vertical sync length in lines for the even field (aka field 2) of
interlaced field formats.</entry>
interlaced field formats. Must be 0 for progressive formats.</entry>
</row>
<row>
<entry>__u32</entry>
<entry><structfield>il_vbackporch</structfield></entry>
<entry>Vertical back porch in lines for the even field (aka field 2) of
interlaced field formats.</entry>
interlaced field formats. Must be 0 for progressive formats.</entry>
</row>
<row>
<entry>__u32</entry>