| 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
|
|---|
| 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.4//EN"
|
|---|
| 3 | "http://www.oasis-open.org/docbook/xml/4.4/docbookx.dtd" [
|
|---|
| 4 | <!ENTITY % general-entities SYSTEM "../../general.ent">
|
|---|
| 5 | %general-entities;
|
|---|
| 6 | ]>
|
|---|
| 7 |
|
|---|
| 8 | <sect1 id="ch-system-udev" role="wrap">
|
|---|
| 9 | <?dbhtml filename="udev.html"?>
|
|---|
| 10 |
|
|---|
| 11 | <title>Udev-&udev-version;</title>
|
|---|
| 12 |
|
|---|
| 13 | <indexterm zone="ch-system-udev">
|
|---|
| 14 | <primary sortas="a-Udev">Udev</primary>
|
|---|
| 15 | </indexterm>
|
|---|
| 16 |
|
|---|
| 17 | <sect2 role="package">
|
|---|
| 18 | <title/>
|
|---|
| 19 |
|
|---|
| 20 | <para>The Udev package contains programs for dynamic creation of device
|
|---|
| 21 | nodes.</para>
|
|---|
| 22 |
|
|---|
| 23 | <segmentedlist>
|
|---|
| 24 | <segtitle>&dependencies;</segtitle>
|
|---|
| 25 |
|
|---|
| 26 | <seglistitem>
|
|---|
| 27 | <seg>Coreutils, GCC, Make, Perl, and Tree</seg>
|
|---|
| 28 | </seglistitem>
|
|---|
| 29 | </segmentedlist>
|
|---|
| 30 |
|
|---|
| 31 | </sect2>
|
|---|
| 32 |
|
|---|
| 33 | <sect2 role="installation">
|
|---|
| 34 | <title>Installation of Udev</title>
|
|---|
| 35 |
|
|---|
| 36 | <para os="a">Compile the package:</para>
|
|---|
| 37 |
|
|---|
| 38 | <screen os="b"><userinput>make EXTRAS="extras/firmware extras/run_directory"</userinput></screen>
|
|---|
| 39 |
|
|---|
| 40 | <variablelist os="c">
|
|---|
| 41 | <title>The meaning of the make parameter:</title>
|
|---|
| 42 |
|
|---|
| 43 | <varlistentry>
|
|---|
| 44 | <term><parameter>EXTRAS="extras/firmware extras/run_directory"</parameter></term>
|
|---|
| 45 | <listitem>
|
|---|
| 46 | <para>This builds the <command>udev_run_devd</command> and
|
|---|
| 47 | <command>udev_run_hotplugd</command> binaries, which are required for
|
|---|
| 48 | correct handling of hotpluggable devices.</para>
|
|---|
| 49 | </listitem>
|
|---|
| 50 | </varlistentry>
|
|---|
| 51 |
|
|---|
| 52 | </variablelist>
|
|---|
| 53 |
|
|---|
| 54 | <para os="d">If you want to run the testsuite, you need to change
|
|---|
| 55 | a hardcoded reference to the <command>test</command>
|
|---|
| 56 | program:</para>
|
|---|
| 57 |
|
|---|
| 58 | <screen os="e"><userinput>sed -i 's@/usr/bin/test@/bin/test@' test/udev-test.pl</userinput></screen>
|
|---|
| 59 |
|
|---|
| 60 | <para os="f">To test the results, issue:
|
|---|
| 61 | <userinput>make test</userinput>.</para>
|
|---|
| 62 |
|
|---|
| 63 | <para os="g">Install the package:</para>
|
|---|
| 64 |
|
|---|
| 65 | <screen os="h"><userinput>make DESTDIR=/ EXTRAS="extras/firmware extras/run_directory" install</userinput></screen>
|
|---|
| 66 |
|
|---|
| 67 | <variablelist os="i">
|
|---|
| 68 | <title>The meaning of the make parameter:</title>
|
|---|
| 69 |
|
|---|
| 70 | <varlistentry>
|
|---|
| 71 | <term><parameter>DESTDIR=/</parameter></term>
|
|---|
| 72 | <listitem>
|
|---|
| 73 | <para>This prevents the Udev build process from killing any
|
|---|
| 74 | <command>udevd</command> processes that may be running on the
|
|---|
| 75 | system.</para>
|
|---|
| 76 | </listitem>
|
|---|
| 77 | </varlistentry>
|
|---|
| 78 |
|
|---|
| 79 | </variablelist>
|
|---|
| 80 |
|
|---|
| 81 | <para os="j">Udev's configuration is far from ideal by default, so install
|
|---|
| 82 | the configuration file here:</para>
|
|---|
| 83 |
|
|---|
| 84 | <screen os="k"><userinput>cp -v ../&udev-config-file; /etc/udev/rules.d/25-lfs.rules</userinput></screen>
|
|---|
| 85 |
|
|---|
| 86 | <para os="l">Install the documentation that explains how to create
|
|---|
| 87 | Udev rules:</para>
|
|---|
| 88 |
|
|---|
| 89 | <screen os="m"><userinput>install -v -m644 -D docs/writing_udev_rules/index.html /usr/share/doc/udev-&udev-version;/index.html</userinput></screen>
|
|---|
| 90 |
|
|---|
| 91 | <para os="n">Run the <command>udevstart</command> program to create our full
|
|---|
| 92 | complement of device nodes.</para>
|
|---|
| 93 |
|
|---|
| 94 | <screen os="o"><userinput>/sbin/udevstart</userinput></screen>
|
|---|
| 95 |
|
|---|
| 96 | </sect2>
|
|---|
| 97 |
|
|---|
| 98 | <sect2 id="contents-udev" role="content">
|
|---|
| 99 | <title>Contents of Udev</title>
|
|---|
| 100 |
|
|---|
| 101 | <segmentedlist>
|
|---|
| 102 | <segtitle>Installed programs</segtitle>
|
|---|
| 103 | <segtitle>Installed directory</segtitle>
|
|---|
| 104 |
|
|---|
| 105 | <seglistitem>
|
|---|
| 106 | <seg>udev, udevcontrol, udevd, udevinfo, udevmonitor, udevsend,
|
|---|
| 107 | udevstart and udevtest</seg>
|
|---|
| 108 | <seg>/etc/udev</seg>
|
|---|
| 109 | </seglistitem>
|
|---|
| 110 | </segmentedlist>
|
|---|
| 111 |
|
|---|
| 112 | <variablelist>
|
|---|
| 113 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
|
|---|
| 114 | <?dbfo list-presentation="list"?>
|
|---|
| 115 | <?dbhtml list-presentation="table"?>
|
|---|
| 116 |
|
|---|
| 117 | <varlistentry id="udev">
|
|---|
| 118 | <term><command>udev</command></term>
|
|---|
| 119 | <listitem>
|
|---|
| 120 | <para>Creates device nodes in <filename
|
|---|
| 121 | class="directory">/dev</filename> or renames network interfaces (not
|
|---|
| 122 | in LFS) in response to hotplug events</para>
|
|---|
| 123 | <indexterm zone="ch-system-udev udev">
|
|---|
| 124 | <primary sortas="b-udev">udev</primary>
|
|---|
| 125 | </indexterm>
|
|---|
| 126 | </listitem>
|
|---|
| 127 | </varlistentry>
|
|---|
| 128 |
|
|---|
| 129 | <varlistentry id="udevcontrol">
|
|---|
| 130 | <term><command>udevcontrol</command></term>
|
|---|
| 131 | <listitem>
|
|---|
| 132 | <para>Configures a number of options for the running
|
|---|
| 133 | <command>udevd</command> daemon, such as the log level.</para>
|
|---|
| 134 | <indexterm zone="ch-system-udev udevcontrol">
|
|---|
| 135 | <primary sortas="b-udevcontrol">udevcontrol</primary>
|
|---|
| 136 | </indexterm>
|
|---|
| 137 | </listitem>
|
|---|
| 138 | </varlistentry>
|
|---|
| 139 |
|
|---|
| 140 | <varlistentry id="udevd">
|
|---|
| 141 | <term><command>udevd</command></term>
|
|---|
| 142 | <listitem>
|
|---|
| 143 | <para>A daemon that reorders hotplug events before submitting them to
|
|---|
| 144 | <command>udev</command>,
|
|---|
| 145 | thus avoiding various race conditions</para>
|
|---|
| 146 | <indexterm zone="ch-system-udev udevd">
|
|---|
| 147 | <primary sortas="b-udevd">udevd</primary>
|
|---|
| 148 | </indexterm>
|
|---|
| 149 | </listitem>
|
|---|
| 150 | </varlistentry>
|
|---|
| 151 |
|
|---|
| 152 | <varlistentry id="udevinfo">
|
|---|
| 153 | <term><command>udevinfo</command></term>
|
|---|
| 154 | <listitem>
|
|---|
| 155 | <para>Allows users to query the <command>udev</command> database for
|
|---|
| 156 | information on any device currently present on the system; it also
|
|---|
| 157 | provides a way to query any device in the <systemitem
|
|---|
| 158 | class="filesystem">sysfs</systemitem> tree to help create udev
|
|---|
| 159 | rules</para>
|
|---|
| 160 | <indexterm zone="ch-system-udev udevinfo">
|
|---|
| 161 | <primary sortas="b-udevinfo">udevinfo</primary>
|
|---|
| 162 | </indexterm>
|
|---|
| 163 | </listitem>
|
|---|
| 164 | </varlistentry>
|
|---|
| 165 |
|
|---|
| 166 | <varlistentry id="udevmonitor">
|
|---|
| 167 | <term><command>udevmonitor</command></term>
|
|---|
| 168 | <listitem>
|
|---|
| 169 | <para>Prints the event received from the kernel and the event which
|
|---|
| 170 | <command>udev</command> sends out after rule processing</para>
|
|---|
| 171 | <indexterm zone="ch-system-udev udevmonitor">
|
|---|
| 172 | <primary sortas="b-udevmonitor">udevmonitor</primary>
|
|---|
| 173 | </indexterm>
|
|---|
| 174 | </listitem>
|
|---|
| 175 | </varlistentry>
|
|---|
| 176 |
|
|---|
| 177 | <varlistentry id="udevsend">
|
|---|
| 178 | <term><command>udevsend</command></term>
|
|---|
| 179 | <listitem>
|
|---|
| 180 | <para>Delivers hotplug events to <command>udevd</command></para>
|
|---|
| 181 | <indexterm zone="ch-system-udev udevsend">
|
|---|
| 182 | <primary sortas="b-udevsend">udevsend</primary>
|
|---|
| 183 | </indexterm>
|
|---|
| 184 | </listitem>
|
|---|
| 185 | </varlistentry>
|
|---|
| 186 |
|
|---|
| 187 | <varlistentry id="udevstart">
|
|---|
| 188 | <term><command>udevstart</command></term>
|
|---|
| 189 | <listitem>
|
|---|
| 190 | <para>Creates device nodes in <filename class="directory">/dev</filename>
|
|---|
| 191 | that correspond to drivers compiled directly into the kernel; it
|
|---|
| 192 | performs that task by simulating hotplug events presumably dropped by
|
|---|
| 193 | the kernel before invocation of this program (e.g., because the root
|
|---|
| 194 | filesystem has not been mounted) and submitting such synthetic hotplug
|
|---|
| 195 | events to <command>udev</command></para>
|
|---|
| 196 | <indexterm zone="ch-system-udev udevstart">
|
|---|
| 197 | <primary sortas="b-udevstart">udevstart</primary>
|
|---|
| 198 | </indexterm>
|
|---|
| 199 | </listitem>
|
|---|
| 200 | </varlistentry>
|
|---|
| 201 |
|
|---|
| 202 | <varlistentry id="udevtest">
|
|---|
| 203 | <term><command>udevtest</command></term>
|
|---|
| 204 | <listitem>
|
|---|
| 205 | <para>Simulates a <command>udev</command> run for the given device,
|
|---|
| 206 | and prints out the name of the node the real <command>udev</command>
|
|---|
| 207 | would have created or (not in LFS) the name of the renamed network
|
|---|
| 208 | interface</para>
|
|---|
| 209 | <indexterm zone="ch-system-udev udevtest">
|
|---|
| 210 | <primary sortas="b-udevtest">udevtest</primary>
|
|---|
| 211 | </indexterm>
|
|---|
| 212 | </listitem>
|
|---|
| 213 | </varlistentry>
|
|---|
| 214 |
|
|---|
| 215 | <varlistentry id="etc-udev">
|
|---|
| 216 | <term><filename class="directory">/etc/udev</filename></term>
|
|---|
| 217 | <listitem>
|
|---|
| 218 | <para>Contains <command>udev</command> configuation files,
|
|---|
| 219 | device permissions, and rules for device naming</para>
|
|---|
| 220 | <indexterm zone="ch-system-udev etc-udev">
|
|---|
| 221 | <primary sortas="e-/etc/udev">/etc/udev</primary>
|
|---|
| 222 | </indexterm>
|
|---|
| 223 | </listitem>
|
|---|
| 224 | </varlistentry>
|
|---|
| 225 |
|
|---|
| 226 | </variablelist>
|
|---|
| 227 |
|
|---|
| 228 | </sect2>
|
|---|
| 229 |
|
|---|
| 230 | </sect1>
|
|---|
