[media] Documentation: v4l: Add hw_seek spacing and two TUNER_RDS_CAP flags

Add a couple of words about the spacing field in the HW seek struct,
also a few words about the new RDS tuner capability flags
V4L2_TUNER_CAP_RDS_BLOCK-IO and V4L2_TUNER_CAP_RDS_CONTROLS.

Signed-off-by: Matti J. Aaltonen <matti.j.aaltonen@nokia.com>
Acked-by: Hans Verkuil <hverkuil@xs4all.nl>
Signed-off-by: Mauro Carvalho Chehab <mchehab@redhat.com>

1 files changed, 8 insertions, 2 deletions

diff --git a/Documentation/DocBook/v4l/vidioc-s-hw-freq-seek.xml b/Documentation/DocBook/v4l/vidioc-s-hw-freq-seek.xml
index 14b3ec7ed75b..c30dcc4232c0 100644
--- a/Documentation/DocBook/v4l/vidioc-s-hw-freq-seek.xml
+++ b/Documentation/DocBook/v4l/vidioc-s-hw-freq-seek.xml
@@ -51,7 +51,8 @@
 
     <para>Start a hardware frequency seek from the current frequency.
 To do this applications initialize the <structfield>tuner</structfield>,
-<structfield>type</structfield>, <structfield>seek_upward</structfield> and
+<structfield>type</structfield>, <structfield>seek_upward</structfield>,
+<structfield>spacing</structfield> and
 <structfield>wrap_around</structfield> fields, and zero out the
 <structfield>reserved</structfield> array of a &v4l2-hw-freq-seek; and
 call the <constant>VIDIOC_S_HW_FREQ_SEEK</constant> ioctl with a pointer
@@ -89,7 +90,12 @@ field and the &v4l2-tuner; <structfield>index</structfield> field.</entry>
           </row>
           <row>
             <entry>__u32</entry>
-            <entry><structfield>reserved</structfield>[8]</entry>
+            <entry><structfield>spacing</structfield></entry>
+            <entry>If non-zero, defines the hardware seek resolution in Hz. The driver selects the nearest value that is supported by the device. If spacing is zero a reasonable default value is used.</entry>
+          </row>
+          <row>
+            <entry>__u32</entry>
+            <entry><structfield>reserved</structfield>[7]</entry>
             <entry>Reserved for future extensions. Drivers and
             applications must set the array to zero.</entry>
           </row>