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[media] DocBook/media: improve timestamp documentation 

Explain which clock was used to make the timestamp.

Signed-off-by: Hans Verkuil <hans.verkuil@cisco.com>
Signed-off-by: Mauro Carvalho Chehab <mchehab@osg.samsung.com>
This commit is contained in:
Hans Verkuil 2015-05-08 07:55:01 -03:00 committed by Mauro Carvalho Chehab
parent ffe2a8536c
commit 200a280509
1 changed files with 4 additions and 1 deletions
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5
Documentation/DocBook/media/v4l/vidioc-dqevent.xml
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@ -133,7 +133,10 @@
<entry>struct timespec</entry>
<entry><structfield>timestamp</structfield></entry>
<entry></entry>
<entry>Event timestamp.</entry>
<entry>Event timestamp. The timestamp has been taken from the
<constant>CLOCK_MONOTONIC</constant> clock. To access the
same clock outside V4L2, use <function>clock_gettime(2)</function>.
</entry>
</row>
<row>
<entry>u32</entry>