Merge git://www.linux-watchdog.org/linux-watchdog

[cascardo/linux.git] / Documentation / DocBook / media / v4l / vidioc-dv-timings-cap.xml

diff --git a/Documentation/DocBook/media/v4l/vidioc-dv-timings-cap.xml b/Documentation/DocBook/media/v4l/vidioc-dv-timings-cap.xml
index a2017bf..ca9ffce 100644 (file)
--- a/Documentation/DocBook/media/v4l/vidioc-dv-timings-cap.xml
+++ b/Documentation/DocBook/media/v4l/vidioc-dv-timings-cap.xml
@@ -49,14 +49,9 @@
   <refsect1>
     <title>Description</title>
 
-    <note>
-      <title>Experimental</title>
-      <para>This is an <link linkend="experimental"> experimental </link>
-      interface and may change in the future.</para>
-    </note>
-
-    <para>To query the capabilities of the DV receiver/transmitter applications
-can call the <constant>VIDIOC_DV_TIMINGS_CAP</constant> ioctl on a video node
+    <para>To query the capabilities of the DV receiver/transmitter applications initialize the
+<structfield>pad</structfield> field to 0, zero the reserved array of &v4l2-dv-timings-cap;
+and call the <constant>VIDIOC_DV_TIMINGS_CAP</constant> ioctl on a video node
 and the driver will fill in the structure. Note that drivers may return
 different values after switching the video input or output.</para>
 
@@ -65,8 +60,8 @@ queried by calling the <constant>VIDIOC_SUBDEV_DV_TIMINGS_CAP</constant> ioctl
 directly on a subdevice node. The capabilities are specific to inputs (for DV
 receivers) or outputs (for DV transmitters), applications must specify the
 desired pad number in the &v4l2-dv-timings-cap; <structfield>pad</structfield>
-field. Attempts to query capabilities on a pad that doesn't support them will
-return an &EINVAL;.</para>
+field and zero the <structfield>reserved</structfield> array. Attempts to query
+capabilities on a pad that doesn't support them will return an &EINVAL;.</para>
 
     <table pgwide="1" frame="none" id="v4l2-bt-timings-cap">
       <title>struct <structname>v4l2_bt_timings_cap</structname></title>
@@ -145,7 +140,8 @@ return an &EINVAL;.</para>
          <row>
            <entry>__u32</entry>
            <entry><structfield>reserved</structfield>[2]</entry>
-           <entry>Reserved for future extensions. Drivers must set the array to zero.</entry>
+           <entry>Reserved for future extensions. Drivers and applications must
+           set the array to zero.</entry>
          </row>
          <row>
            <entry>union</entry>