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Based on kernel version 3.13. Page generated on 2014-01-20 22:02 EST.

1	<refentry id="vidioc-log-status">
2	  <refmeta>
3	    <refentrytitle>ioctl VIDIOC_LOG_STATUS</refentrytitle>
4	    &manvol;
5	  </refmeta>
6	
7	  <refnamediv>
8	    <refname>VIDIOC_LOG_STATUS</refname>
9	    <refpurpose>Log driver status information</refpurpose>
10	  </refnamediv>
11	
12	  <refsynopsisdiv>
13	    <funcsynopsis>
14	      <funcprototype>
15		<funcdef>int <function>ioctl</function></funcdef>
16		<paramdef>int <parameter>fd</parameter></paramdef>
17		<paramdef>int <parameter>request</parameter></paramdef>
18	      </funcprototype>
19	    </funcsynopsis>
20	  </refsynopsisdiv>
21	
22	  <refsect1>
23	    <title>Description</title>
24	
25	    <para>As the video/audio devices become more complicated it
26	becomes harder to debug problems. When this ioctl is called the driver
27	will output the current device status to the kernel log. This is
28	particular useful when dealing with problems like no sound, no video
29	and incorrectly tuned channels. Also many modern devices autodetect
30	video and audio standards and this ioctl will report what the device
31	thinks what the standard is. Mismatches may give an indication where
32	the problem is.</para>
33	
34	    <para>This ioctl is optional and not all drivers support it. It
35	was introduced in Linux 2.6.15.</para>
36	  </refsect1>
37	
38	  <refsect1>
39	    &return-value;
40	  </refsect1>
41	</refentry>
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