From: Hans Verkuil <hans.verkuil@xxxxxxxxx>
- Remove the "On failure the structure remains unchanged." part since
that isn't necessarily true.
- Document the 'size' field.
Signed-off-by: Hans Verkuil <hans.verkuil@xxxxxxxxx>
---
.../DocBook/media/v4l/vidioc-dbg-g-chip-info.xml | 3 +--
.../DocBook/media/v4l/vidioc-dbg-g-register.xml | 15 ++++++++++-----
2 files changed, 11 insertions(+), 7 deletions(-)
diff --git a/Documentation/DocBook/media/v4l/vidioc-dbg-g-chip-info.xml b/Documentation/DocBook/media/v4l/vidioc-dbg-g-chip-info.xml
index 706989d..4c4603c 100644
--- a/Documentation/DocBook/media/v4l/vidioc-dbg-g-chip-info.xml
+++ b/Documentation/DocBook/media/v4l/vidioc-dbg-g-chip-info.xml
@@ -73,8 +73,7 @@ fields of a &v4l2-dbg-chip-info;
and call <constant>VIDIOC_DBG_G_CHIP_INFO</constant> with a pointer to
this structure. On success the driver stores information about the
selected chip in the <structfield>name</structfield> and
-<structfield>flags</structfield> fields. On failure the structure
-remains unchanged.</para>
+<structfield>flags</structfield> fields.</para>
<para>When <structfield>match.type</structfield> is
<constant>V4L2_CHIP_MATCH_BRIDGE</constant>,
diff --git a/Documentation/DocBook/media/v4l/vidioc-dbg-g-register.xml b/Documentation/DocBook/media/v4l/vidioc-dbg-g-register.xml
index b3f6100..3d038e7 100644
--- a/Documentation/DocBook/media/v4l/vidioc-dbg-g-register.xml
+++ b/Documentation/DocBook/media/v4l/vidioc-dbg-g-register.xml
@@ -76,7 +76,7 @@ compiled with the <constant>CONFIG_VIDEO_ADV_DEBUG</constant> option
to enable these ioctls.</para>
<para>To write a register applications must initialize all fields
-of a &v4l2-dbg-register; and call
+of a &v4l2-dbg-register; except for <structfield>size</structfield> and call
<constant>VIDIOC_DBG_S_REGISTER</constant> with a pointer to this
structure. The <structfield>match.type</structfield> and
<structfield>match.addr</structfield> or <structfield>match.name</structfield>
@@ -91,8 +91,8 @@ written into the register.</para>
<structfield>reg</structfield> fields, and call
<constant>VIDIOC_DBG_G_REGISTER</constant> with a pointer to this
structure. On success the driver stores the register value in the
-<structfield>val</structfield> field. On failure the structure remains
-unchanged.</para>
+<structfield>val</structfield> field and the size (in bytes) of the
+value in <structfield>size</structfield>.</para>
<para>When <structfield>match.type</structfield> is
<constant>V4L2_CHIP_MATCH_BRIDGE</constant>,
@@ -120,7 +120,7 @@ LinuxTV v4l-dvb repository; see <ulink
url="http://linuxtv.org/repo/";>http://linuxtv.org/repo/</ulink> for
access instructions.</para>
- <!-- Note for convenience vidioc-dbg-g-chip-ident.sgml
+ <!-- Note for convenience vidioc-dbg-g-chip-info.sgml
contains a duplicate of this table. -->
<table pgwide="1" frame="none" id="v4l2-dbg-match">
<title>struct <structname>v4l2_dbg_match</structname></title>
@@ -169,6 +169,11 @@ to the <structfield>type</structfield> field. Currently unused.</entry>
<entry>How to match the chip, see <xref linkend="v4l2-dbg-match" />.</entry>
</row>
<row>
+ <entry>__u32</entry>
+ <entry><structfield>size</structfield></entry>
+ <entry>The register size in bytes.</entry>
+ </row>
+ <row>
<entry>__u64</entry>
<entry><structfield>reg</structfield></entry>
<entry>A register number.</entry>
@@ -183,7 +188,7 @@ register.</entry>
</tgroup>
</table>
- <!-- Note for convenience vidioc-dbg-g-chip-ident.sgml
+ <!-- Note for convenience vidioc-dbg-g-chip-info.sgml
contains a duplicate of this table. -->
<table pgwide="1" frame="none" id="chip-match-types">
<title>Chip Match Types</title>
--
1.7.10.4
--
To unsubscribe from this list: send the line "unsubscribe linux-media" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
