77 lines
4.4 KiB
HTML
77 lines
4.4 KiB
HTML
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2 Final//EN">
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<HTML>
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<HEAD>
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<META NAME="GENERATOR" CONTENT="SGML-Tools 1.0.9">
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<TITLE>Alsa-sound-mini-HOWTO: NOWTO - a quick install guide</TITLE>
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<LINK HREF="Alsa-sound-3.html" REL=next>
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<LINK HREF="Alsa-sound-1.html" REL=previous>
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<LINK HREF="Alsa-sound.html#toc2" REL=contents>
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</HEAD>
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<BODY>
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<A HREF="Alsa-sound-3.html">Next</A>
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<A HREF="Alsa-sound-1.html">Previous</A>
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<A HREF="Alsa-sound.html#toc2">Contents</A>
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<HR>
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<H2><A NAME="s2">2. NOWTO - a quick install guide</A></H2>
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<P>If you want sound and you want it NOW! and not after reading this HOWTO, this quick tour through
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the ALSA driver installation might be of help. Please note: there are a couple of differences between
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the ALSA versions that support 2.0 kernels and those that support 2.2 kernels.
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<H2><A NAME="ss2.1">2.1 Installing ALSA for kernels 2.2.x</A>
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</H2>
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<P>You will probably want to use the ALSA 0.4.1e (or later) version if your kernel is 2.2.x.
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If your kernel is older, please use 0.3.0-pre4 and see below.
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<P>Just the all time ``./configure - make - make install'' stuff. Do this for <B>drivers, library and utilities</B>.
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You need all three because the utilities help you to unmute your card. Kernels 2.2.x need to have <B>general
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sound support</B> in the kernel (without choosing a specific card).
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<P>The ALSA drivers have their own devices, you can make them usinge the <B>./snddevices</B> script.
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<P>You need to load the module for your card (or use kmod)
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and if you want sound to be backwards compatible with the Linux kernel sound drivers (yes you want this) you need
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two other modules called <B>snd-pcm1-oss</B> and <B>snd-mixer-oss</B>. See the section
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<A HREF="Alsa-sound-5.html#which-modul">Which module for which card</A> to find
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out which module to load. After loading, you can look in /proc/asound
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for various information about the ALSA drivers.
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<H2><A NAME="ss2.2">2.2 Playing and recording sound</A>
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</H2>
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<P>A few remarks. ALSA has it's own devices in /dev/snd, for example /dev/snd/pcmC0D1 is Card 0, Device 1.
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You can use the old /dev/pcmXY devices if you loaded snd-pcm1-oss for backwards compatibility. You'll also want
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to use /dev/mixer, so load snd-mixer-oss as well. Before you can
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play any sound, you need to unmute the card with ``amixer''. Type ``amixer groups'', then try something like
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<P><CODE>amixer set PCM 100 unmute</CODE>
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<P>Generally you can use options ``mute'' or ``unmute'', ``capture'' or ``nocapture'' and numbers.
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<P>That's it! Now if it works, it works. If it doesn't work, you may need to actually read this HOWTO...
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<P>
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<H2><A NAME="ss2.3">2.3 Installing ALSA for 2.0.x</A>
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</H2>
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<P>The ALSA drivers versions 0.3.0, 0.3.1 and 0.3.2 have various problems due to the
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restructuring of the mixer interface. Later versions do not support kernel 2.0.x, so you definately will want to
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use version 0.3.0-pre4 if you have a 2.0 version kernel.
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<P>Just the all time ``./configure - make - make install'' stuff. Do this for <B>drivers, library and utilities</B>.
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You need all three because the utilities help you to unmute your card. Kernels 2.0.x need to have all <B>sound
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support disabled</B> in the kernel setup
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<P>The ALSA drivers have their own devices, you can make them usinge the <B>./snddevices</B> script.
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<P>You need to load the module for your card (or use kmod)
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and if you want sound to be backwards compatible with the Linux kernel sound drivers (yes you want this) you need
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another modules called <B>snd-pcm1-oss</B>. See the section
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<A HREF="Alsa-sound-5.html#which-modul">Which module for which card</A> to find
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out which module to load. After loading, you can look in /proc/asound
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for various information about the ALSA drivers.
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<H2><A NAME="ss2.4">2.4 Playing and recording sound</A>
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</H2>
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<P>A few remarks. ALSA has it's own devices in /dev/snd, for example /dev/snd/pcmC0D1 is Card 0, Device 1.
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You can use the old /dev/pcmXY devices if you loaded snd-pcm1-oss for backwards compatibility. Before you can
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play any sound, you need to unmute the card with ``amixer''. Type ``amixer'', then try something like
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<P><CODE>amixer pcm 100 unmute</CODE>
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<P>Generally you can use options ``mute'' or ``unmute'', ``rec'' or ``norec'', numbers or left:right.
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<P>That's it! Now if it works, it works. If it doesn't work, you may need to actually read this HOWTO...
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<HR>
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<A HREF="Alsa-sound-3.html">Next</A>
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<A HREF="Alsa-sound-1.html">Previous</A>
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<A HREF="Alsa-sound.html#toc2">Contents</A>
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</BODY>
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</HTML>
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