[8a75933] | 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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| 2 | <!DOCTYPE sect1 PUBLIC "-//OASIS//DTD DocBook XML V4.5//EN"
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| 3 | "http://www.oasis-open.org/docbook/xml/4.5/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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[35a5259] | 8 | <sect1 id="ch-system-eudev" role="wrap" revision="sysv">
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[8a75933] | 9 | <?dbhtml filename="eudev.html"?>
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| 10 |
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| 11 | <sect1info condition="script">
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| 12 | <productname>eudev</productname>
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| 13 | <productnumber>&eudev-version;</productnumber>
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| 14 | <address>&eudev-url;</address>
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| 15 | </sect1info>
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| 16 |
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| 17 | <title>Eudev-&eudev-version;</title>
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| 18 |
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| 19 | <indexterm zone="ch-system-eudev">
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| 20 | <primary sortas="a-Eudev">Eudev</primary>
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| 21 | </indexterm>
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| 22 |
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| 23 | <sect2 role="package">
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| 24 | <title/>
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| 25 |
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| 26 | <para>The Eudev package contains programs for dynamic creation of device
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| 27 | nodes.</para>
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| 28 |
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| 29 | <segmentedlist>
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| 30 | <segtitle>&buildtime;</segtitle>
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| 31 | <segtitle>&diskspace;</segtitle>
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| 32 |
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| 33 | <seglistitem>
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| 34 | <seg>&eudev-ch6-sbu;</seg>
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| 35 | <seg>&eudev-ch6-du;</seg>
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| 36 | </seglistitem>
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| 37 | </segmentedlist>
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| 38 | </sect2>
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| 39 |
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| 40 | <sect2 role="installation">
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| 41 | <title>Installation of Eudev</title>
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[de6905d] | 42 | <!--
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[3aee2ac2] | 43 | <para>First, fix a test script:</para>
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[8a75933] | 44 |
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[3aee2ac2] | 45 | <screen><userinput remap="pre">sed -r -i 's|/usr(/bin/test)|\1|' test/udev-test.pl</userinput></screen>
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[de6905d] | 46 | -->
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[8da63ab] | 47 | <!--
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[3e92f82] | 48 | <para>Next, remove an unneeded line that causes a build failure:</para>
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| 49 |
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| 50 | <screen><userinput remap="pre">sed -i '/keyboard_lookup_key/d' src/udev/udev-builtin-keyboard.c</userinput></screen>
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[8da63ab] | 51 | -->
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[99dd957] | 52 | <para>Next, add a workaround to prevent the /tools directory from being
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| 53 | hard coded into Eudev binary files library locations:</para>
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| 54 |
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| 55 | <screen><userinput remap="pre">cat > config.cache << "EOF"
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| 56 | HAVE_BLKID=1
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| 57 | BLKID_LIBS="-lblkid"
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| 58 | BLKID_CFLAGS="-I/tools/include"
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| 59 | EOF</userinput></screen>
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| 60 |
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[8a75933] | 61 | <para>Prepare Eudev for compilation:</para>
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| 62 |
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[99dd957] | 63 | <screen><userinput remap="configure">./configure --prefix=/usr \
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[8a75933] | 64 | --bindir=/sbin \
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| 65 | --sbindir=/sbin \
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| 66 | --libdir=/usr/lib \
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| 67 | --sysconfdir=/etc \
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| 68 | --libexecdir=/lib \
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| 69 | --with-rootprefix= \
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| 70 | --with-rootlibdir=/lib \
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[54dfb280] | 71 | --enable-manpages \
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[73b2841] | 72 | --disable-static \
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[53366411] | 73 | --config-cache</userinput></screen>
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| 74 |
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[8a75933] | 75 | <para>Compile the package:</para>
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| 76 |
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[99dd957] | 77 | <screen><userinput remap="make">LIBRARY_PATH=/tools/lib make</userinput></screen>
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[8a75933] | 78 |
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[8b3e141] | 79 | <note><para>The LIBRARY_PATH variable here and the LD_LIBRARY_PATH variable
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| 80 | below are needed to allow the use of libraries that were installed in /tools,
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| 81 | but have not yet been installed in the main system. LIBRARY_PATH is
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| 82 | used to find libraries during the linking process. LD_LIBRARY_PATH is
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| 83 | used to find libraries during program execution.</para></note>
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| 84 |
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[8a75933] | 85 | <para>Create some directories now that are needed for tests, but
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| 86 | will also be used as a part of installation:</para>
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| 87 |
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[1a96a4ed] | 88 | <screen><userinput remap="test">mkdir -pv /lib/udev/rules.d
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[8a75933] | 89 | mkdir -pv /etc/udev/rules.d</userinput></screen>
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| 90 |
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[1a96a4ed] | 91 | <para>To test the results, issue:</para>
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[8a75933] | 92 |
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[99dd957] | 93 | <screen><userinput remap="test">make LD_LIBRARY_PATH=/tools/lib check</userinput></screen>
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[8a75933] | 94 |
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[1a96a4ed] | 95 | <para>Install the package:</para>
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[8a75933] | 96 |
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[99dd957] | 97 | <screen><userinput remap="install">make LD_LIBRARY_PATH=/tools/lib install</userinput></screen>
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[8a75933] | 98 |
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[99dd957] | 99 | <para>Install some custom rules and support files useful in an LFS
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[8aa7fde] | 100 | environment:</para>
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[111bb20] | 101 |
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[8aa7fde] | 102 | <screen><userinput remap="install">tar -xvf ../&udev-lfs-version;.tar.bz2
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| 103 | make -f &udev-lfs-version;/Makefile.lfs install</userinput></screen>
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[111bb20] | 104 |
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[8a75933] | 105 | </sect2>
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| 106 |
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[1a96a4ed] | 107 | <sect2 id="conf-eudev" role="configuration">
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| 108 | <title>Configuring Eudev</title>
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| 109 |
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| 110 | <indexterm zone="conf-eudev">
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| 111 | <primary sortas="a-Eudev">Eudev</primary>
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| 112 | <secondary>configuring</secondary>
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| 113 | </indexterm>
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| 114 |
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| 115 | <indexterm zone="conf-eudev">
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| 116 | <primary sortas="e-/etc/udev/hwdb.bin">/etc/udev/hwdb.bin</primary>
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| 117 | </indexterm>
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| 118 |
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| 119 | <para>Information about hardware devices is maintained in the
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| 120 | <filename class="directory">/etc/udev/hwdb.d</filename> and
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[a0c056c] | 121 | <filename class="directory">/lib/udev/hwdb.d</filename> directories.
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[1a96a4ed] | 122 | <application>Eudev</application> needs that information to be compiled
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| 123 | into a binary database <filename>/etc/udev/hwdb.bin</filename>. Create the
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| 124 | initial database:</para>
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| 125 |
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[99dd957] | 126 | <screen><userinput>LD_LIBRARY_PATH=/tools/lib udevadm hwdb --update</userinput></screen>
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[1a96a4ed] | 127 |
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| 128 | <para>This command needs to be run each time the hardware information is
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| 129 | updated.</para>
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| 130 |
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| 131 | </sect2>
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| 132 |
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[8a75933] | 133 | <sect2 id="contents-eudev" role="content">
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| 134 | <title>Contents of Eudev</title>
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| 135 |
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| 136 | <segmentedlist>
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| 137 | <segtitle>Installed programs</segtitle>
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| 138 | <segtitle>Installed libraries</segtitle>
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| 139 | <segtitle>Installed directories</segtitle>
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| 140 |
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| 141 | <seglistitem>
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| 142 | <seg><!-- These are in /lib/udev and not to be called by the user:
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| 143 | accelerometer, ata_id, cdrom_id, collect, mtd_probe,
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| 144 | scsi_id, v4l_id,--> udevadm and udevd</seg>
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| 145 |
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| 146 | <seg>libudev.so</seg>
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| 147 |
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[aa8729c] | 148 | <seg>/etc/udev, /lib/udev, and /usr/share/doc/udev-&udev-lfs-version;</seg>
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[8a75933] | 149 | </seglistitem>
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| 150 | </segmentedlist>
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| 151 |
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| 152 | <variablelist>
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| 153 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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| 154 | <?dbfo list-presentation="list"?>
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| 155 | <?dbhtml list-presentation="table"?>
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[35a5259] | 156 | <varlistentry id="udevadm" revision="sysv">
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[8a75933] | 157 | <term><command>udevadm</command></term>
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| 158 | <listitem>
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| 159 | <para>Generic udev administration tool: controls the udevd daemon,
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| 160 | provides info from the Udev database, monitors uevents, waits for
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| 161 | uevents to finish, tests Udev configuration, and triggers uevents
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| 162 | for a given device</para>
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| 163 | <indexterm zone="ch-system-eudev udevadm">
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| 164 | <primary sortas="b-udevadm">udevadm</primary>
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| 165 | </indexterm>
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| 166 | </listitem>
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| 167 | </varlistentry>
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| 168 |
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| 169 | <varlistentry id="udevd">
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| 170 | <term><command>udevd</command></term>
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| 171 | <listitem>
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| 172 | <para>A daemon that listens for uevents on the netlink socket,
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| 173 | creates devices and runs the configured external programs in
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| 174 | response to these uevents</para>
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| 175 | <indexterm zone="ch-system-eudev udevd">
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| 176 | <primary sortas="b-udevd">udevd</primary>
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| 177 | </indexterm>
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| 178 | </listitem>
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| 179 | </varlistentry>
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| 180 |
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| 181 | <varlistentry id="libudev">
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| 182 | <term><filename class="libraryfile">libudev</filename></term>
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| 183 | <listitem>
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| 184 | <para>A library interface to udev device information</para>
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| 185 | <indexterm zone="ch-system-eudev libudev">
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| 186 | <primary sortas="c-libudev">libudev</primary>
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| 187 | </indexterm>
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| 188 | </listitem>
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| 189 | </varlistentry>
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| 190 |
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| 191 | <varlistentry id="etc-udev">
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| 192 | <term><filename class="directory">/etc/udev</filename></term>
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| 193 | <listitem>
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| 194 | <para>Contains Udev configuration files,
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| 195 | device permissions, and rules for device naming</para>
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| 196 | <indexterm zone="ch-system-eudev etc-udev">
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| 197 | <primary sortas="e-/etc/udev">/etc/udev</primary>
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| 198 | </indexterm>
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| 199 | </listitem>
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| 200 | </varlistentry>
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| 201 |
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| 202 | </variablelist>
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| 203 |
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| 204 | </sect2>
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| 205 |
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| 206 | </sect1>
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