[57e86a93] | 1 | <?xml version="1.0" encoding="ISO-8859-1"?>
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[6732c094] | 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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[48b7295] | 4 | <!ENTITY % general-entities SYSTEM "../../general.ent">
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| 5 | %general-entities;
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[73942e6] | 6 |
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[03978485] | 7 | <!ENTITY alsa-lib-download-http "&alsa-download-http;/lib/alsa-lib-&alsa-lib-version;.tar.bz2">
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[48b7295] | 8 | <!ENTITY alsa-lib-download-ftp "&alsa-download-ftp;/lib/alsa-lib-&alsa-lib-version;.tar.bz2">
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[03978485] | 9 | <!ENTITY alsa-lib-md5sum "82ddd3698469beec147e4f4a67134ea0">
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| 10 | <!ENTITY alsa-lib-size "981 KB">
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[11839b6f] | 11 | <!ENTITY alsa-lib-buildsize "35 MB (with tests)">
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[76c3cd71] | 12 | <!ENTITY alsa-lib-time "0.3 SBU (with tests)">
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[48b7295] | 13 | ]>
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[73942e6] | 14 |
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[a027d7d3] | 15 | <sect1 id="alsa-lib" xreflabel="alsa-lib-&alsa-lib-version;">
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[57e86a93] | 16 | <?dbhtml filename="alsa-lib.html"?>
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[48b7295] | 17 |
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[57e86a93] | 18 | <sect1info>
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| 19 | <othername>$LastChangedBy$</othername>
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| 20 | <date>$Date$</date>
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| 21 | </sect1info>
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[48b7295] | 22 |
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[a027d7d3] | 23 | <title>alsa-lib-&alsa-lib-version;</title>
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[48b7295] | 24 |
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[57e86a93] | 25 | <indexterm zone="alsa-lib">
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[0d50cca] | 26 | <primary sortas="a-alsa-lib">alsa-lib</primary>
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[57e86a93] | 27 | </indexterm>
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[48b7295] | 28 |
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[57e86a93] | 29 | <sect2 role="package">
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| 30 | <title>Introduction to ALSA Library</title>
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[48b7295] | 31 |
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[0d50cca] | 32 | <para>
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| 33 | The <application>ALSA Library</application> package contains
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| 34 | the ALSA library used by programs (including <application>ALSA
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| 35 | Utilities</application>) requiring access to the ALSA sound
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| 36 | interface.
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| 37 | </para>
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[48b7295] | 38 |
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[d43c7a12] | 39 | &lfs90_checked;
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[831c11e4] | 40 |
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[57e86a93] | 41 | <bridgehead renderas="sect3">Package Information</bridgehead>
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| 42 | <itemizedlist spacing="compact">
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| 43 | <listitem>
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[0d50cca] | 44 | <para>
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| 45 | Download (HTTP): <ulink url="&alsa-lib-download-http;"/>
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| 46 | </para>
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[57e86a93] | 47 | </listitem>
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| 48 | <listitem>
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[0d50cca] | 49 | <para>
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| 50 | Download (FTP): <ulink url="&alsa-lib-download-ftp;"/>
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| 51 | </para>
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[57e86a93] | 52 | </listitem>
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| 53 | <listitem>
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[0d50cca] | 54 | <para>
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| 55 | Download MD5 sum: &alsa-lib-md5sum;
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| 56 | </para>
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[57e86a93] | 57 | </listitem>
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| 58 | <listitem>
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[0d50cca] | 59 | <para>
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| 60 | Download size: &alsa-lib-size;
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| 61 | </para>
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[57e86a93] | 62 | </listitem>
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| 63 | <listitem>
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[0d50cca] | 64 | <para>
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| 65 | Estimated disk space required: &alsa-lib-buildsize;
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| 66 | </para>
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[57e86a93] | 67 | </listitem>
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| 68 | <listitem>
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[0d50cca] | 69 | <para>
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| 70 | Estimated build time: &alsa-lib-time;
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| 71 | </para>
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[57e86a93] | 72 | </listitem>
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| 73 | </itemizedlist>
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[efa108a6] | 74 |
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[57e86a93] | 75 | <bridgehead renderas="sect3">ALSA Library Dependencies</bridgehead>
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[48b7295] | 76 |
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[57e86a93] | 77 | <bridgehead renderas="sect4">Optional</bridgehead>
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[0d50cca] | 78 | <para role="optional">
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| 79 | <xref linkend="doxygen"/> and
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[f3429309] | 80 | <xref linkend="python2"/>
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[0d50cca] | 81 | </para>
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[48b7295] | 82 |
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[0e2aa08] | 83 | <para condition="html" role="usernotes">User Notes:
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[0d50cca] | 84 | <ulink url="&blfs-wiki;/alsa-lib"/>
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| 85 | </para>
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[57e86a93] | 86 | </sect2>
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[48b7295] | 87 |
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[57e86a93] | 88 | <sect2 role="kernel" id="alsa-lib-kernel">
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| 89 | <title>Kernel Configuration</title>
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[48b7295] | 90 |
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[35e960fb] | 91 | <para>
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[f3429309] | 92 | If needed, enable the following options in the kernel
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| 93 | configuration and recompile the kernel:
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[35e960fb] | 94 | </para>
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| 95 |
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| 96 | <screen><literal>Device Drivers --->
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[421128a1] | 97 | <*/m> Sound card support ---> [CONFIG_SOUND]
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| 98 | <*/m> Advanced Linux Sound Architecture ---> [CONFIG_SND]
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[f161544] | 99 | Select settings and drivers appropriate for your hardware.</literal></screen>
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[35e960fb] | 100 |
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[0d50cca] | 101 | <para>
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| 102 | In the Device Drivers ⇒ Sound card support ⇒ Advanced Linux
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| 103 | Sound Architecture section of the kernel configuration, select the settings
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| 104 | and drivers appropriate for your hardware. Ensure that the deprecated Device
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| 105 | Drivers ⇒ Sound card support ⇒ Open Sound System is
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| 106 | <emphasis>not</emphasis> selected. If necessary, recompile and install your
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| 107 | new kernel.
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| 108 | </para>
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[ac789c0] | 109 |
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[57e86a93] | 110 | <indexterm zone="alsa-lib alsa-lib-kernel">
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| 111 | <primary sortas="d-ALSA">ALSA</primary>
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| 112 | </indexterm>
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[ac789c0] | 113 |
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[57e86a93] | 114 | </sect2>
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[ac789c0] | 115 |
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[57e86a93] | 116 | <sect2 role="installation">
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| 117 | <title>Installation of ALSA Library</title>
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[48b7295] | 118 |
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[0d50cca] | 119 | <para>
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| 120 | Install <application>ALSA Library</application> by
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| 121 | running the following commands:
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| 122 | </para>
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[57e86a93] | 123 |
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[09bed9e5] | 124 | <screen><userinput>./configure &&
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[57e86a93] | 125 | make</userinput></screen>
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| 126 |
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[17833b00] | 127 | <para>
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| 128 | If you have <application>Doxygen</application> installed and you wish to
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| 129 | build the library API documentation, run the following
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| 130 | commands from the top-level directory of the source tree:
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| 131 | </para>
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| 132 |
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[2f3e3de9] | 133 | <screen remap="doc"><userinput>make doc</userinput></screen>
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[11839b6f] | 134 | <!-- The test suite needs libasound.so now, otherwise both the config and
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| 135 | midi_event tests will fail.
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[0d50cca] | 136 | <para>
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[09bed9e5] | 137 | To test the results, issue: <command>make check</command>.
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[0d50cca] | 138 | </para>
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[11839b6f] | 139 | -->
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[0d50cca] | 140 | <para>
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| 141 | Now, as the <systemitem class="username">root</systemitem> user:
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| 142 | </para>
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[57e86a93] | 143 |
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[0d50cca] | 144 | <screen role="root"><userinput>make install</userinput></screen>
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[57e86a93] | 145 |
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[0d50cca] | 146 | <para>
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| 147 | To install the API documentation, run the following command as
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| 148 | the <systemitem class="username">root</systemitem> user:
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| 149 | </para>
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[57e86a93] | 150 |
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[2f3e3de9] | 151 | <screen role="root"
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| 152 | remap="doc"><userinput>install -v -d -m755 /usr/share/doc/alsa-lib-&alsa-lib-version;/html/search &&
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[4c70ad3e] | 153 | install -v -m644 doc/doxygen/html/*.* \
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| 154 | /usr/share/doc/alsa-lib-&alsa-lib-version;/html &&
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| 155 | install -v -m644 doc/doxygen/html/search/* \
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| 156 | /usr/share/doc/alsa-lib-&alsa-lib-version;/html/search</userinput></screen>
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[57e86a93] | 157 |
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[11839b6f] | 158 | <para>
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| 159 | The test suite requires the alsa-lib package to be installed to
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| 160 | link against some libraries. Now that alsa-lib is installed, if you wish
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| 161 | to run the tests, issue: <command>make check</command>.
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| 162 | </para>
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| 163 |
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[57e86a93] | 164 | </sect2>
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| 165 |
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| 166 | <sect2 role="configuration">
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| 167 | <title>Configuring ALSA Library</title>
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| 168 |
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| 169 | <sect3 id="alsa-lib-config">
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| 170 | <title>Config Files</title>
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| 171 |
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[0d50cca] | 172 | <para>
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| 173 | <filename>~/.asoundrc</filename> and
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| 174 | <filename>/etc/asound.conf</filename>
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| 175 | </para>
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[57e86a93] | 176 |
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| 177 | <indexterm zone="alsa-lib alsa-lib-config">
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| 178 | <primary sortas="e-AA.asoundrc">~/.asoundrc</primary>
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| 179 | </indexterm>
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| 180 |
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| 181 | <indexterm zone="alsa-lib alsa-lib-config">
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| 182 | <primary sortas="e-etc-asound.conf">/etc/asound.conf</primary>
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| 183 | </indexterm>
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| 184 |
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| 185 | </sect3>
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| 186 |
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| 187 | <sect3>
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| 188 | <title>Configuration Information</title>
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| 189 |
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[0d50cca] | 190 | <para>
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| 191 | The default <filename>alsa.conf</filename> is adequate for most
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| 192 | installations. For extra functionality and/or advanced control of your
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| 193 | sound device, you may need to create additional configuration files.
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| 194 | For information on the available configuration parameters, visit
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[a754ee2b] | 195 | <ulink url="http://www.alsa-project.org/main/index.php/Asoundrc"/>.
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[0d50cca] | 196 | </para>
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[57e86a93] | 197 |
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| 198 | </sect3>
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| 199 |
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| 200 | </sect2>
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| 201 |
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| 202 | <sect2 role="content">
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| 203 | <title>Contents</title>
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| 204 |
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| 205 | <segmentedlist>
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[831c11e4] | 206 | <segtitle>Installed Program</segtitle>
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[0d50cca] | 207 | <segtitle>Installed Library</segtitle>
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[57e86a93] | 208 | <segtitle>Installed Directories</segtitle>
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| 209 |
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| 210 | <seglistitem>
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[0d50cca] | 211 | <seg>
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| 212 | aserver
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| 213 | </seg>
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| 214 | <seg>
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[11839b6f] | 215 | libasound.so and
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| 216 | libatopology.so
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| 217 | <!-- and four others under /usr/lib/alsa-lib/smixer -->
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[0d50cca] | 218 | </seg>
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| 219 | <seg>
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| 220 | /usr/include/alsa,
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| 221 | /usr/lib/alsa-lib,
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| 222 | /usr/share/alsa and
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[0c7d410] | 223 | /usr/share/doc/alsa-lib-&alsa-lib-version;
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| 224 | </seg>
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[57e86a93] | 225 | </seglistitem>
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| 226 | </segmentedlist>
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| 227 |
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| 228 | <variablelist>
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| 229 | <bridgehead renderas="sect3">Short Descriptions</bridgehead>
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| 230 | <?dbfo list-presentation="list"?>
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| 231 | <?dbhtml list-presentation="table"?>
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| 232 |
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[17ad62a4] | 233 | <varlistentry id="aserver">
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| 234 | <term><command>aserver</command></term>
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| 235 | <listitem>
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[0d50cca] | 236 | <para>
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| 237 | is the ALSA server.
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| 238 | </para>
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[17ad62a4] | 239 | <indexterm zone="alsa-lib aserver">
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| 240 | <primary sortas="b-aserver">aserver</primary>
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| 241 | </indexterm>
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| 242 | </listitem>
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| 243 | </varlistentry>
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| 244 |
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[57e86a93] | 245 | <varlistentry id="libasound">
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[0d50cca] | 246 | <term><filename class="libraryfile">libasound.so</filename></term>
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[57e86a93] | 247 | <listitem>
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[0d50cca] | 248 | <para>
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| 249 | contains the ALSA API functions.
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| 250 | </para>
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[57e86a93] | 251 | <indexterm zone="alsa-lib libasound">
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[0d50cca] | 252 | <primary sortas="c-libasound">libasound.so</primary>
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[7ffd4d7] | 253 | </indexterm>
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| 254 | </listitem>
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| 255 | </varlistentry>
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| 256 |
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[11839b6f] | 257 | <varlistentry id="libatopology">
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| 258 | <term><filename class="libraryfile">libatopology.so</filename></term>
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| 259 | <listitem>
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| 260 | <para>
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| 261 | contains API functions for the ALSA topologies.
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| 262 | </para>
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| 263 | <indexterm zone="alsa-lib libatopology">
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| 264 | <primary sortas="c-libatopology">libatopology.so</primary>
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| 265 | </indexterm>
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| 266 | </listitem>
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| 267 | </varlistentry>
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| 268 |
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[57e86a93] | 269 | </variablelist>
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| 270 |
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| 271 | </sect2>
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[48b7295] | 272 |
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| 273 | </sect1>
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