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yaml --- r: 331089 b: refs/heads/master c: 6bd4dd2 h: refs/heads/master i: 331087: dbe78d5 v: v3
git-mirror · Sep 26, 2012 · 0074bf5 · 0074bf5
1 parent abbf80a
commit 0074bf5
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Showing 2 changed files with 7 additions and 2 deletions.
diff --git a/[refs] b/[refs]
@@ -1,2 +1,2 @@
 ---
-refs/heads/master: 8e19b3475072682312de71f4dddf6d4f4081e143
+refs/heads/master: 6bd4dd27f926519527b9c39709df13ad120d63f9
diff --git a/trunk/Documentation/DocBook/media/v4l/vidioc-streamon.xml b/trunk/Documentation/DocBook/media/v4l/vidioc-streamon.xml
@@ -74,7 +74,12 @@ not transmitted yet. I/O returns to the same state as after calling
 stream type. This is the same as &v4l2-requestbuffers;
 <structfield>type</structfield>.</para>
 
-    <para>Note applications can be preempted for unknown periods right
+    <para>If <constant>VIDIOC_STREAMON</constant> is called when streaming
+is already in progress, or if <constant>VIDIOC_STREAMOFF</constant> is called
+when streaming is already stopped, then the ioctl does nothing and 0 is
+returned.</para>
+
+    <para>Note that applications can be preempted for unknown periods right
 before or after the <constant>VIDIOC_STREAMON</constant> or
 <constant>VIDIOC_STREAMOFF</constant> calls, there is no notion of
 starting or stopping "now". Buffer timestamps can be used to