proxmox-mirrors/systemd
1
0
Fork 0
mirror of https://git.proxmox.com/git/systemd synced 2025-05-25 20:19:54 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity
e735f4d4ea
systemd/docs/libudev/html/libudev-udev-monitor.html
Martin Pitt f47781d88c Imported Upstream version 218
2014-12-12 19:54:51 +02:00

559 lines
23 KiB
HTML
Raw Blame History

This file contains invisible Unicode characters

This file contains invisible Unicode characters that are indistinguishable to humans but may be processed differently by a computer. If you think that this is intentional, you can safely ignore this warning. Use the Escape button to reveal them.

<!DOCTYPE html PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>libudev Reference Manual: udev_monitor</title>
<meta name="generator" content="DocBook XSL Stylesheets V1.78.1">
<link rel="home" href="index.html" title="libudev Reference Manual">
<link rel="up" href="ch01.html" title="API Reference">
<link rel="prev" href="libudev-udev-device.html" title="udev_device">
<link rel="next" href="libudev-udev-enumerate.html" title="udev_enumerate">
<meta name="generator" content="GTK-Doc V1.21 (XML mode)">
<link rel="stylesheet" href="style.css" type="text/css">
</head>
<body bgcolor="white" text="black" link="#0000FF" vlink="#840084" alink="#0000FF">
<table class="navigation" id="top" width="100%" summary="Navigation header" cellpadding="2" cellspacing="5"><tr valign="middle">
<td width="100%" align="left" class="shortcuts">
<a href="#" class="shortcut">Top</a><span id="nav_description">  <span class="dim">|</span> 
<a href="#libudev-udev-monitor.description" class="shortcut">Description</a></span>
</td>
<td><a accesskey="h" href="index.html"><img src="home.png" width="16" height="16" border="0" alt="Home"></a></td>
<td><a accesskey="u" href="ch01.html"><img src="up.png" width="16" height="16" border="0" alt="Up"></a></td>
<td><a accesskey="p" href="libudev-udev-device.html"><img src="left.png" width="16" height="16" border="0" alt="Prev"></a></td>
<td><a accesskey="n" href="libudev-udev-enumerate.html"><img src="right.png" width="16" height="16" border="0" alt="Next"></a></td>
</tr></table>
<div class="refentry">
<a name="libudev-udev-monitor"></a><div class="titlepage"></div>
<div class="refnamediv"><table width="100%"><tr>
<td valign="top">
<h2><span class="refentrytitle"><a name="libudev-udev-monitor.top_of_page"></a>udev_monitor</span></h2>
<p>udev_monitor — device event source</p>
</td>
<td class="gallery_image" valign="top" align="right"></td>
</tr></table></div>
<div class="refsect1">
<a name="libudev-udev-monitor.functions"></a><h2>Functions</h2>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="functions_return">
<col class="functions_name">
</colgroup>
<tbody>
<tr>
<td class="function_type">struct <a class="link" href="libudev-udev-monitor.html#udev-monitor" title="struct udev_monitor"><span class="returnvalue">udev_monitor</span></a> *
</td>
<td class="function_name">
<a class="link" href="libudev-udev-monitor.html#udev-monitor-ref" title="udev_monitor_ref ()">udev_monitor_ref</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">struct <a class="link" href="libudev-udev-monitor.html#udev-monitor" title="struct udev_monitor"><span class="returnvalue">udev_monitor</span></a> *
</td>
<td class="function_name">
<a class="link" href="libudev-udev-monitor.html#udev-monitor-unref" title="udev_monitor_unref ()">udev_monitor_unref</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">struct <a class="link" href="libudev-udev.html#udev" title="struct udev"><span class="returnvalue">udev</span></a> *
</td>
<td class="function_name">
<a class="link" href="libudev-udev-monitor.html#udev-monitor-get-udev" title="udev_monitor_get_udev ()">udev_monitor_get_udev</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">struct <a class="link" href="libudev-udev-monitor.html#udev-monitor" title="struct udev_monitor"><span class="returnvalue">udev_monitor</span></a> *
</td>
<td class="function_name">
<a class="link" href="libudev-udev-monitor.html#udev-monitor-new-from-netlink" title="udev_monitor_new_from_netlink ()">udev_monitor_new_from_netlink</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">int</span>
</td>
<td class="function_name">
<a class="link" href="libudev-udev-monitor.html#udev-monitor-enable-receiving" title="udev_monitor_enable_receiving ()">udev_monitor_enable_receiving</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">int</span>
</td>
<td class="function_name">
<a class="link" href="libudev-udev-monitor.html#udev-monitor-set-receive-buffer-size" title="udev_monitor_set_receive_buffer_size ()">udev_monitor_set_receive_buffer_size</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">int</span>
</td>
<td class="function_name">
<a class="link" href="libudev-udev-monitor.html#udev-monitor-get-fd" title="udev_monitor_get_fd ()">udev_monitor_get_fd</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">struct <a class="link" href="libudev-udev-device.html#udev-device" title="struct udev_device"><span class="returnvalue">udev_device</span></a> *
</td>
<td class="function_name">
<a class="link" href="libudev-udev-monitor.html#udev-monitor-receive-device" title="udev_monitor_receive_device ()">udev_monitor_receive_device</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">int</span>
</td>
<td class="function_name">
<a class="link" href="libudev-udev-monitor.html#udev-monitor-filter-add-match-subsystem-devtype" title="udev_monitor_filter_add_match_subsystem_devtype ()">udev_monitor_filter_add_match_subsystem_devtype</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">int</span>
</td>
<td class="function_name">
<a class="link" href="libudev-udev-monitor.html#udev-monitor-filter-add-match-tag" title="udev_monitor_filter_add_match_tag ()">udev_monitor_filter_add_match_tag</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">int</span>
</td>
<td class="function_name">
<a class="link" href="libudev-udev-monitor.html#udev-monitor-filter-update" title="udev_monitor_filter_update ()">udev_monitor_filter_update</a> <span class="c_punctuation">()</span>
</td>
</tr>
<tr>
<td class="function_type">
<span class="returnvalue">int</span>
</td>
<td class="function_name">
<a class="link" href="libudev-udev-monitor.html#udev-monitor-filter-remove" title="udev_monitor_filter_remove ()">udev_monitor_filter_remove</a> <span class="c_punctuation">()</span>
</td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect1">
<a name="libudev-udev-monitor.other"></a><h2>Types and Values</h2>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="name">
<col class="description">
</colgroup>
<tbody><tr>
<td class="datatype_keyword">struct</td>
<td class="function_name"><a class="link" href="libudev-udev-monitor.html#udev-monitor" title="struct udev_monitor">udev_monitor</a></td>
</tr></tbody>
</table></div>
</div>
<div class="refsect1">
<a name="libudev-udev-monitor.description"></a><h2>Description</h2>
<p>Connects to a device event source.</p>
</div>
<div class="refsect1">
<a name="libudev-udev-monitor.functions_details"></a><h2>Functions</h2>
<div class="refsect2">
<a name="udev-monitor-ref"></a><h3>udev_monitor_ref ()</h3>
<pre class="programlisting">struct <a class="link" href="libudev-udev-monitor.html#udev-monitor" title="struct udev_monitor"><span class="returnvalue">udev_monitor</span></a> *
udev_monitor_ref (<em class="parameter"><code><span class="type">struct udev_monitor</span> *udev_monitor</code></em>);</pre>
<p>Take a reference of a udev monitor.</p>
<div class="refsect3">
<a name="id-1.2.5.6.2.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>udev_monitor</p></td>
<td class="parameter_description"><p>udev monitor</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.2.5.6.2.6"></a><h4>Returns</h4>
<p> the passed udev monitor</p>
<p></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="udev-monitor-unref"></a><h3>udev_monitor_unref ()</h3>
<pre class="programlisting">struct <a class="link" href="libudev-udev-monitor.html#udev-monitor" title="struct udev_monitor"><span class="returnvalue">udev_monitor</span></a> *
udev_monitor_unref (<em class="parameter"><code><span class="type">struct udev_monitor</span> *udev_monitor</code></em>);</pre>
<p>Drop a reference of a udev monitor. If the refcount reaches zero,
the bound socket will be closed, and the resources of the monitor
will be released.</p>
<div class="refsect3">
<a name="id-1.2.5.6.3.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>udev_monitor</p></td>
<td class="parameter_description"><p>udev monitor</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.2.5.6.3.6"></a><h4>Returns</h4>
<p> <span class="type">NULL</span></p>
<p></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="udev-monitor-get-udev"></a><h3>udev_monitor_get_udev ()</h3>
<pre class="programlisting">struct <a class="link" href="libudev-udev.html#udev" title="struct udev"><span class="returnvalue">udev</span></a> *
udev_monitor_get_udev (<em class="parameter"><code><span class="type">struct udev_monitor</span> *udev_monitor</code></em>);</pre>
<p>Retrieve the udev library context the monitor was created with.</p>
<div class="refsect3">
<a name="id-1.2.5.6.4.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>udev_monitor</p></td>
<td class="parameter_description"><p>udev monitor</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.2.5.6.4.6"></a><h4>Returns</h4>
<p> the udev library context</p>
<p></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="udev-monitor-new-from-netlink"></a><h3>udev_monitor_new_from_netlink ()</h3>
<pre class="programlisting">struct <a class="link" href="libudev-udev-monitor.html#udev-monitor" title="struct udev_monitor"><span class="returnvalue">udev_monitor</span></a> *
udev_monitor_new_from_netlink (<em class="parameter"><code><span class="type">struct udev</span> *udev</code></em>,
<em class="parameter"><code>const <span class="type">char</span> *name</code></em>);</pre>
<p>Create new udev monitor and connect to a specified event
source. Valid sources identifiers are "udev" and "kernel".</p>
<p>Applications should usually not connect directly to the
"kernel" events, because the devices might not be useable
at that time, before udev has configured them, and created
device nodes. Accessing devices at the same time as udev,
might result in unpredictable behavior. The "udev" events
are sent out after udev has finished its event processing,
all rules have been processed, and needed device nodes are
created.</p>
<p>The initial refcount is 1, and needs to be decremented to
release the resources of the udev monitor.</p>
<div class="refsect3">
<a name="id-1.2.5.6.5.7"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>udev</p></td>
<td class="parameter_description"><p>udev library context</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>name</p></td>
<td class="parameter_description"><p>name of event source</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.2.5.6.5.8"></a><h4>Returns</h4>
<p> a new udev monitor, or <span class="type">NULL</span>, in case of an error</p>
<p></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="udev-monitor-enable-receiving"></a><h3>udev_monitor_enable_receiving ()</h3>
<pre class="programlisting"><span class="returnvalue">int</span>
udev_monitor_enable_receiving (<em class="parameter"><code><span class="type">struct udev_monitor</span> *udev_monitor</code></em>);</pre>
<p>Binds the <em class="parameter"><code>udev_monitor</code></em>
socket to the event source.</p>
<div class="refsect3">
<a name="id-1.2.5.6.6.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>udev_monitor</p></td>
<td class="parameter_description"><p>the monitor which should receive events</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.2.5.6.6.6"></a><h4>Returns</h4>
<p> 0 on success, otherwise a negative error value.</p>
<p></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="udev-monitor-set-receive-buffer-size"></a><h3>udev_monitor_set_receive_buffer_size ()</h3>
<pre class="programlisting"><span class="returnvalue">int</span>
udev_monitor_set_receive_buffer_size (<em class="parameter"><code><span class="type">struct udev_monitor</span> *udev_monitor</code></em>,
<em class="parameter"><code><span class="type">int</span> size</code></em>);</pre>
<p>Set the size of the kernel socket buffer. This call needs the
appropriate privileges to succeed.</p>
<div class="refsect3">
<a name="id-1.2.5.6.7.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>udev_monitor</p></td>
<td class="parameter_description"><p>the monitor which should receive events</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>size</p></td>
<td class="parameter_description"><p>the size in bytes</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.2.5.6.7.6"></a><h4>Returns</h4>
<p> 0 on success, otherwise -1 on error.</p>
<p></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="udev-monitor-get-fd"></a><h3>udev_monitor_get_fd ()</h3>
<pre class="programlisting"><span class="returnvalue">int</span>
udev_monitor_get_fd (<em class="parameter"><code><span class="type">struct udev_monitor</span> *udev_monitor</code></em>);</pre>
<p>Retrieve the socket file descriptor associated with the monitor.</p>
<div class="refsect3">
<a name="id-1.2.5.6.8.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>udev_monitor</p></td>
<td class="parameter_description"><p>udev monitor</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.2.5.6.8.6"></a><h4>Returns</h4>
<p> the socket file descriptor</p>
<p></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="udev-monitor-receive-device"></a><h3>udev_monitor_receive_device ()</h3>
<pre class="programlisting">struct <a class="link" href="libudev-udev-device.html#udev-device" title="struct udev_device"><span class="returnvalue">udev_device</span></a> *
udev_monitor_receive_device (<em class="parameter"><code><span class="type">struct udev_monitor</span> *udev_monitor</code></em>);</pre>
<p>Receive data from the udev monitor socket, allocate a new udev
device, fill in the received data, and return the device.</p>
<p>Only socket connections with uid=0 are accepted.</p>
<p>The monitor socket is by default set to NONBLOCK. A variant of <code class="function">poll()</code> on
the file descriptor returned by <a class="link" href="libudev-udev-monitor.html#udev-monitor-get-fd" title="udev_monitor_get_fd ()"><code class="function">udev_monitor_get_fd()</code></a> should to be used to
wake up when new devices arrive, or alternatively the file descriptor
switched into blocking mode.</p>
<p>The initial refcount is 1, and needs to be decremented to
release the resources of the udev device.</p>
<div class="refsect3">
<a name="id-1.2.5.6.9.8"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>udev_monitor</p></td>
<td class="parameter_description"><p>udev monitor</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.2.5.6.9.9"></a><h4>Returns</h4>
<p> a new udev device, or <span class="type">NULL</span>, in case of an error</p>
<p></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="udev-monitor-filter-add-match-subsystem-devtype"></a><h3>udev_monitor_filter_add_match_subsystem_devtype ()</h3>
<pre class="programlisting"><span class="returnvalue">int</span>
udev_monitor_filter_add_match_subsystem_devtype
(<em class="parameter"><code><span class="type">struct udev_monitor</span> *udev_monitor</code></em>,
<em class="parameter"><code>const <span class="type">char</span> *subsystem</code></em>,
<em class="parameter"><code>const <span class="type">char</span> *devtype</code></em>);</pre>
<p>This filter is efficiently executed inside the kernel, and libudev subscribers
will usually not be woken up for devices which do not match.</p>
<p>The filter must be installed before the monitor is switched to listening mode.</p>
<div class="refsect3">
<a name="id-1.2.5.6.10.6"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>udev_monitor</p></td>
<td class="parameter_description"><p>the monitor</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>subsystem</p></td>
<td class="parameter_description"><p>the subsystem value to match the incoming devices against</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>devtype</p></td>
<td class="parameter_description"><p>the devtype value to match the incoming devices against</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.2.5.6.10.7"></a><h4>Returns</h4>
<p> 0 on success, otherwise a negative error value.</p>
<p></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="udev-monitor-filter-add-match-tag"></a><h3>udev_monitor_filter_add_match_tag ()</h3>
<pre class="programlisting"><span class="returnvalue">int</span>
udev_monitor_filter_add_match_tag (<em class="parameter"><code><span class="type">struct udev_monitor</span> *udev_monitor</code></em>,
<em class="parameter"><code>const <span class="type">char</span> *tag</code></em>);</pre>
<p>This filter is efficiently executed inside the kernel, and libudev subscribers
will usually not be woken up for devices which do not match.</p>
<p>The filter must be installed before the monitor is switched to listening mode.</p>
<div class="refsect3">
<a name="id-1.2.5.6.11.6"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody>
<tr>
<td class="parameter_name"><p>udev_monitor</p></td>
<td class="parameter_description"><p>the monitor</p></td>
<td class="parameter_annotations"> </td>
</tr>
<tr>
<td class="parameter_name"><p>tag</p></td>
<td class="parameter_description"><p>the name of a tag</p></td>
<td class="parameter_annotations"> </td>
</tr>
</tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.2.5.6.11.7"></a><h4>Returns</h4>
<p> 0 on success, otherwise a negative error value.</p>
<p></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="udev-monitor-filter-update"></a><h3>udev_monitor_filter_update ()</h3>
<pre class="programlisting"><span class="returnvalue">int</span>
udev_monitor_filter_update (<em class="parameter"><code><span class="type">struct udev_monitor</span> *udev_monitor</code></em>);</pre>
<p>Update the installed socket filter. This is only needed,
if the filter was removed or changed.</p>
<div class="refsect3">
<a name="id-1.2.5.6.12.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>udev_monitor</p></td>
<td class="parameter_description"><p>monitor</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.2.5.6.12.6"></a><h4>Returns</h4>
<p> 0 on success, otherwise a negative error value.</p>
<p></p>
</div>
</div>
<hr>
<div class="refsect2">
<a name="udev-monitor-filter-remove"></a><h3>udev_monitor_filter_remove ()</h3>
<pre class="programlisting"><span class="returnvalue">int</span>
udev_monitor_filter_remove (<em class="parameter"><code><span class="type">struct udev_monitor</span> *udev_monitor</code></em>);</pre>
<p>Remove all filters from monitor.</p>
<div class="refsect3">
<a name="id-1.2.5.6.13.5"></a><h4>Parameters</h4>
<div class="informaltable"><table width="100%" border="0">
<colgroup>
<col width="150px" class="parameters_name">
<col class="parameters_description">
<col width="200px" class="parameters_annotations">
</colgroup>
<tbody><tr>
<td class="parameter_name"><p>udev_monitor</p></td>
<td class="parameter_description"><p>monitor</p></td>
<td class="parameter_annotations"> </td>
</tr></tbody>
</table></div>
</div>
<div class="refsect3">
<a name="id-1.2.5.6.13.6"></a><h4>Returns</h4>
<p> 0 on success, otherwise a negative error value.</p>
<p></p>
</div>
</div>
</div>
<div class="refsect1">
<a name="libudev-udev-monitor.other_details"></a><h2>Types and Values</h2>
<div class="refsect2">
<a name="udev-monitor"></a><h3>struct udev_monitor</h3>
<pre class="programlisting">struct udev_monitor;</pre>
<p>Opaque object handling an event source.</p>
</div>
</div>
</div>
<div class="footer">
<hr>
Generated by GTK-Doc V1.21</div>
</body>
</html>
Reference in New Issue View Git Blame Copy Permalink