diff options
1 files changed, 4 insertions, 2 deletions
diff --git a/Documentation/DocBook/v4l/vidioc-query-dv-preset.xml b/Documentation/DocBook/v4l/vidioc-query-dv-preset.xml
index 87e4f0f6151..402229ee06f 100644
--- a/Documentation/DocBook/v4l/vidioc-query-dv-preset.xml
+++ b/Documentation/DocBook/v4l/vidioc-query-dv-preset.xml
@@ -53,8 +53,10 @@ input</refpurpose>
automatically, similar to sensing the video standard. To do so, applications
call <constant> VIDIOC_QUERY_DV_PRESET</constant> with a pointer to a
&v4l2-dv-preset; type. Once the hardware detects a preset, that preset is
-returned in the preset field of &v4l2-dv-preset;. When detection is not
-possible or fails, the value V4L2_DV_INVALID is returned.</para>
+returned in the preset field of &v4l2-dv-preset;. If the preset could not be
+detected because there was no signal, or the signal was unreliable, or the
+signal did not map to a supported preset, then the value V4L2_DV_INVALID is