diff options
| -rw-r--r-- | Documentation/DocBook/media/v4l/vidioc-streamon.xml | 7 |
1 files changed, 6 insertions, 1 deletions
diff --git a/Documentation/DocBook/media/v4l/vidioc-streamon.xml b/Documentation/DocBook/media/v4l/vidioc-streamon.xml index 81cca4569050..716ea15e54a1 100644 --- a/Documentation/DocBook/media/v4l/vidioc-streamon.xml +++ b/Documentation/DocBook/media/v4l/vidioc-streamon.xml | |||
| @@ -74,7 +74,12 @@ not transmitted yet. I/O returns to the same state as after calling | |||
| 74 | stream type. This is the same as &v4l2-requestbuffers; | 74 | stream type. This is the same as &v4l2-requestbuffers; |
| 75 | <structfield>type</structfield>.</para> | 75 | <structfield>type</structfield>.</para> |
| 76 | 76 | ||
| 77 | <para>Note applications can be preempted for unknown periods right | 77 | <para>If <constant>VIDIOC_STREAMON</constant> is called when streaming |
| 78 | is already in progress, or if <constant>VIDIOC_STREAMOFF</constant> is called | ||
| 79 | when streaming is already stopped, then the ioctl does nothing and 0 is | ||
| 80 | returned.</para> | ||
| 81 | |||
| 82 | <para>Note that applications can be preempted for unknown periods right | ||
| 78 | before or after the <constant>VIDIOC_STREAMON</constant> or | 83 | before or after the <constant>VIDIOC_STREAMON</constant> or |
| 79 | <constant>VIDIOC_STREAMOFF</constant> calls, there is no notion of | 84 | <constant>VIDIOC_STREAMOFF</constant> calls, there is no notion of |
| 80 | starting or stopping "now". Buffer timestamps can be used to | 85 | starting or stopping "now". Buffer timestamps can be used to |