Merge branch 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6

* 'for_linus' of git://git.kernel.org/pub/scm/linux/kernel/git/mchehab/linux-2.6: (222 commits)
  V4L/DVB (13033): pt1: Don't use a deprecated DMA_BIT_MASK macro
  V4L/DVB (13029): radio-si4713: remove #include <linux/version.h>
  V4L/DVB (13027): go7007: convert printks to v4l2_info
  V4L/DVB (13026): s2250-board: Implement brightness and contrast controls
  V4L/DVB (13025): s2250-board: Fix memory leaks
  V4L/DVB (13024): go7007: Implement vidioc_g_std and vidioc_querystd
  V4L/DVB (13023): go7007: Merge struct gofh and go declarations
  V4L/DVB (13022): go7007: Fix mpeg controls
  V4L/DVB (13021): go7007: Fix whitespace and line lengths
  V4L/DVB (13020): go7007: Updates to Kconfig and Makefile
  V4L/DVB (13019): video: initial support for ADV7180
  V4L/DVB (13018): kzalloc failure ignored in au8522_probe()
  V4L/DVB (13017): gspca: kmalloc failure ignored in sd_start()
  V4L/DVB (13016): kmalloc failure ignored in lgdt3304_attach() and s921_attach()
  V4L/DVB (13015): kmalloc failure ignored in m920x_firmware_download()
  V4L/DVB (13014): Add support for Compro VideoMate E800 (DVB-T part only)
  V4L/DVB (13013): FM TX: si4713: Kconfig: Fixed two typos.
  V4L/DVB (13012): uvc: introduce missing kfree
  V4L/DVB (13011): Change tuner type of BeholdTV cards
  V4L/DVB (13009): gspca - stv06xx-hdcs: Reduce exposure range
  ...

1 files changed, 130 insertions, 0 deletions

diff --git a/Documentation/DocBook/v4l/vidioc-g-ctrl.xml b/Documentation/DocBook/v4l/vidioc-g-ctrl.xml
new file mode 100644
index 00000000000..8b5e6ff7f3d
--- /dev/null
+++ b/Documentation/DocBook/v4l/vidioc-g-ctrl.xml
@@ -0,0 +1,130 @@
+<refentry id="vidioc-g-ctrl">
+  <refmeta>
+    <refentrytitle>ioctl VIDIOC_G_CTRL, VIDIOC_S_CTRL</refentrytitle>
+    &manvol;
+  </refmeta>
+
+  <refnamediv>
+    <refname>VIDIOC_G_CTRL</refname>
+    <refname>VIDIOC_S_CTRL</refname>
+    <refpurpose>Get or set the value of a control</refpurpose>
+  </refnamediv>
+
+  <refsynopsisdiv>
+    <funcsynopsis>
+      <funcprototype>
+	<funcdef>int <function>ioctl</function></funcdef>
+	<paramdef>int <parameter>fd</parameter></paramdef>
+	<paramdef>int <parameter>request</parameter></paramdef>
+	<paramdef>struct v4l2_control
+*<parameter>argp</parameter></paramdef>
+      </funcprototype>
+    </funcsynopsis>
+  </refsynopsisdiv>
+
+  <refsect1>
+    <title>Arguments</title>
+
+    <variablelist>
+      <varlistentry>
+	<term><parameter>fd</parameter></term>
+	<listitem>
+	  <para>&fd;</para>
+	</listitem>
+      </varlistentry>
+      <varlistentry>
+	<term><parameter>request</parameter></term>
+	<listitem>
+	  <para>VIDIOC_G_CTRL, VIDIOC_S_CTRL</para>
+	</listitem>
+      </varlistentry>
+      <varlistentry>
+	<term><parameter>argp</parameter></term>
+	<listitem>
+	  <para></para>
+	</listitem>
+      </varlistentry>
+    </variablelist>
+  </refsect1>
+
+  <refsect1>
+    <title>Description</title>
+
+    <para>To get the current value of a control applications
+initialize the <structfield>id</structfield> field of a struct
+<structname>v4l2_control</structname> and call the
+<constant>VIDIOC_G_CTRL</constant> ioctl with a pointer to this
+structure. To change the value of a control applications initialize
+the <structfield>id</structfield> and <structfield>value</structfield>
+fields of a struct <structname>v4l2_control</structname> and call the
+<constant>VIDIOC_S_CTRL</constant> ioctl.</para>
+
+    <para>When the <structfield>id</structfield> is invalid drivers
+return an &EINVAL;. When the <structfield>value</structfield> is out
+of bounds drivers can choose to take the closest valid value or return
+an &ERANGE;, whatever seems more appropriate. However,
+<constant>VIDIOC_S_CTRL</constant> is a write-only ioctl, it does not
+return the actual new value.</para>
+
+    <para>These ioctls work only with user controls. For other
+control classes the &VIDIOC-G-EXT-CTRLS;, &VIDIOC-S-EXT-CTRLS; or
+&VIDIOC-TRY-EXT-CTRLS; must be used.</para>
+
+    <table pgwide="1" frame="none" id="v4l2-control">
+      <title>struct <structname>v4l2_control</structname></title>
+      <tgroup cols="3">
+	&cs-str;
+	<tbody valign="top">
+	  <row>
+	    <entry>__u32</entry>
+	    <entry><structfield>id</structfield></entry>
+	    <entry>Identifies the control, set by the
+application.</entry>
+	  </row>
+	  <row>
+	    <entry>__s32</entry>
+	    <entry><structfield>value</structfield></entry>
+	    <entry>New value or current value.</entry>
+	  </row>
+	</tbody>
+      </tgroup>
+    </table>
+  </refsect1>
+
+  <refsect1>
+    &return-value;
+
+    <variablelist>
+      <varlistentry>
+	<term><errorcode>EINVAL</errorcode></term>
+	<listitem>
+	  <para>The &v4l2-control; <structfield>id</structfield> is
+invalid.</para>
+	</listitem>
+      </varlistentry>
+      <varlistentry>
+	<term><errorcode>ERANGE</errorcode></term>
+	<listitem>
+	  <para>The &v4l2-control; <structfield>value</structfield>
+is out of bounds.</para>
+	</listitem>
+      </varlistentry>
+      <varlistentry>
+	<term><errorcode>EBUSY</errorcode></term>
+	<listitem>
+	  <para>The control is temporarily not changeable, possibly
+because another applications took over control of the device function
+this control belongs to.</para>
+	</listitem>
+      </varlistentry>
+    </variablelist>
+  </refsect1>
+</refentry>
+
+<!--
+Local Variables:
+mode: sgml
+sgml-parent-document: "v4l2.sgml"
+indent-tabs-mode: nil
+End:
+-->