| 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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| 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN"
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| 3 |   "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd" [
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| 4 |   <!ENTITY % general-entities SYSTEM "../../general.ent">
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| 5 |   %general-entities;
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| 6 | ]>
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| 7 | 
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| 8 | <sect1 id="ch-system-udev" role="wrap">
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| 9 |   <?dbhtml filename="udev.html"?>
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| 10 | 
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| 11 |   <title>Udev-&udev-version;</title>
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| 12 | 
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| 13 |   <indexterm zone="ch-system-udev">
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| 14 |     <primary sortas="a-Udev">Udev</primary>
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| 15 |   </indexterm>
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| 16 | 
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| 17 |   <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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| 18 |   href="../common/udev.xml"
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| 19 |   xpointer="xpointer(//*[@role='package'])"/>
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| 20 | 
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| 21 |   <sect2 role="installation">
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| 22 |     <title>Installation of Udev</title>
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| 23 | 
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| 24 |     <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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| 25 |     href="../common/udev.xml"
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| 26 |     xpointer="xpointer(//*[@os='a'])"/>
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| 27 | 
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| 28 | <screen os="b"><userinput>make CC="gcc ${BUILD64}" LD="gcc ${BUILD64}" \
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| 29 |     EXTRAS="extras/firmware extras/run_directory" udevdir=/dev</userinput></screen>
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| 30 | 
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| 31 |     <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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| 32 |     href="../common/udev.xml"
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| 33 |     xpointer="xpointer(//*[@os='c'])"/>
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| 34 | 
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| 35 |     <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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| 36 |     href="../common/udev.xml"
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| 37 |     xpointer="xpointer(//*[@os='d'])"/>
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| 38 | 
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| 39 |     <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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| 40 |     href="../common/udev.xml"
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| 41 |     xpointer="xpointer(//*[@os='e'])"/>
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| 42 | 
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| 43 |     <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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| 44 |     href="../common/udev.xml"
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| 45 |     xpointer="xpointer(//*[@os='f'])"/>
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| 46 | 
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| 47 |     <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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| 48 |     href="../common/udev.xml"
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| 49 |     xpointer="xpointer(//*[@os='g'])"/>
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| 50 | 
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| 51 |     <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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| 52 |     href="../common/udev.xml"
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| 53 |     xpointer="xpointer(//*[@os='h'])"/>
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| 54 | 
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| 55 |     <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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| 56 |     href="../common/udev.xml"
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| 57 |     xpointer="xpointer(//*[@os='i'])"/>
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| 58 | 
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| 59 |     <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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| 60 |     href="../common/udev.xml"
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| 61 |     xpointer="xpointer(//*[@os='j'])"/>
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| 62 | 
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| 63 |     <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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| 64 |     href="../common/udev.xml"
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| 65 |     xpointer="xpointer(//*[@os='k'])"/>
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| 66 | 
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| 67 |     <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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| 68 |     href="../common/udev.xml"
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| 69 |     xpointer="xpointer(//*[@os='l'])"/>
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| 70 | 
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| 71 |     <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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| 72 |     href="../common/udev.xml"
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| 73 |     xpointer="xpointer(//*[@os='m'])"/>
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| 74 | 
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| 75 |     <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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| 76 |     href="../common/udev.xml"
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| 77 |     xpointer="xpointer(//*[@os='n'])"/>
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| 78 | 
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| 79 |     <xi:include xmlns:xi="http://www.w3.org/2003/XInclude"
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| 80 |     href="../common/udev.xml"
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| 81 |     xpointer="xpointer(//*[@os='o'])"/>
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| 82 | 
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| 83 |   </sect2>
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| 84 | 
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| 85 |   <sect2 id="contents-udev" role="content">
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| 86 |     <title>Contents of Udev</title>
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| 87 | 
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| 88 |     <segmentedlist>
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| 89 |       <segtitle>Installed programs</segtitle>
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| 90 |       <segtitle>Installed directory</segtitle>
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| 91 | 
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| 92 |       <seglistitem>
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| 93 |         <seg>udev, udevd, udevsend, udevstart, udevinfo, and udevtest</seg>
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| 94 |         <seg>/etc/udev</seg>
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| 95 |       </seglistitem>
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| 96 |     </segmentedlist>
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| 97 | 
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| 98 |     <variablelist>
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| 99 |       <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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| 100 |       <?dbfo list-presentation="list"?>
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| 101 |       <?dbhtml list-presentation="table"?>
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| 102 | 
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| 103 |       <varlistentry id="udev">
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| 104 |         <term><command>udev</command></term>
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| 105 |         <listitem>
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| 106 |           <para>Creates device nodes in <filename
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| 107 |           class="directory">/dev</filename> or renames network interfaces (not
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| 108 |           in LFS) in response to hotplug events</para>
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| 109 |             <indexterm zone="ch-system-udev udev">
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| 110 |           <primary sortas="b-udev">udev</primary>
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| 111 |         </indexterm>
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| 112 |       </listitem></varlistentry>
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| 113 | 
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| 114 |       <varlistentry id="udevd">
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| 115 |         <term><command>udevd</command></term>
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| 116 |         <listitem>
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| 117 |           <para>A daemon that reorders hotplug events before submitting them to
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| 118 |           <command>udev</command>,
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| 119 |           thus avoiding various race conditions</para>
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| 120 |             <indexterm zone="ch-system-udev udevd">
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| 121 |           <primary sortas="b-udevd">udevd</primary>
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| 122 |         </indexterm>
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| 123 |       </listitem></varlistentry>
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| 124 | 
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| 125 |       <varlistentry id="udevsend">
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| 126 |         <term><command>udevsend</command></term>
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| 127 |         <listitem>
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| 128 |           <para>Delivers hotplug events to <command>udevd</command></para>
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| 129 |             <indexterm zone="ch-system-udev udevsend">
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| 130 |           <primary sortas="b-udevsend">udevsend</primary>
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| 131 |         </indexterm>
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| 132 |       </listitem></varlistentry>
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| 133 | 
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| 134 |       <varlistentry id="udevstart">
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| 135 |         <term><command>udevstart</command></term>
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| 136 |         <listitem>
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| 137 |           <para>Creates device nodes in <filename class="directory">/dev</filename>
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| 138 |           that correspond to drivers compiled directly into the kernel; it
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| 139 |           performs that task by simulating hotplug events presumably dropped by
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| 140 |           the kernel before invocation of this program (e.g., because the root
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| 141 |           filesystem has not been mounted) and submitting such synthetic hotplug
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| 142 |           events to <command>udev</command></para>
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| 143 |           <indexterm zone="ch-system-udev udevstart">
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| 144 |             <primary sortas="b-udevstart">udevstart</primary>
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| 145 |           </indexterm>
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| 146 |         </listitem>
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| 147 |       </varlistentry>
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| 148 | 
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| 149 |       <varlistentry id="udevinfo">
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| 150 |         <term><command>udevinfo</command></term>
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| 151 |         <listitem>
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| 152 |           <para>Allows users to query the <command>udev</command> database for
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| 153 |           information on any device currently present on the system; it also
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| 154 |           provides a way to query any device in the <systemitem
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| 155 |           class="filesystem">sysfs</systemitem> tree to help create udev
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| 156 |           rules</para>
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| 157 |           <indexterm zone="ch-system-udev udevinfo">
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| 158 |             <primary sortas="b-udevinfo">udevinfo</primary>
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| 159 |           </indexterm>
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| 160 |         </listitem>
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| 161 |       </varlistentry>
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| 162 | 
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| 163 |       <varlistentry id="udevtest">
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| 164 |         <term><command>udevtest</command></term>
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| 165 |         <listitem>
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| 166 |           <para>Simulates a <command>udev</command> run for the given device,
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| 167 |           and prints out the name of the node the real <command>udev</command>
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| 168 |           would have created or (not in LFS) the name of the renamed network
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| 169 |           interface</para>
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| 170 |           <indexterm zone="ch-system-udev udevtest">
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| 171 |             <primary sortas="b-udevtest">udevtest</primary>
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| 172 |           </indexterm>
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| 173 |         </listitem>
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| 174 |       </varlistentry>
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| 175 | 
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| 176 |       <varlistentry id="etc-udev">
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| 177 |         <term><filename class="directory">/etc/udev</filename></term>
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| 178 |         <listitem>
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| 179 |           <para>Contains <command>udev</command> configuation files,
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| 180 |           device permissions, and rules for device naming</para>
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| 181 |           <indexterm zone="ch-system-udev etc-udev">
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| 182 |             <primary sortas="e-/etc/udev">/etc/udev</primary>
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| 183 |           </indexterm>
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| 184 |         </listitem>
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| 185 |       </varlistentry>
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| 186 | 
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| 187 |     </variablelist>
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| 188 | 
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| 189 |   </sect2>
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| 190 | 
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| 191 | </sect1>
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