View source for Matrix:Soundcard

==Quick installation==

This explains how to build from source tarballs. See [[GIT_Server]] for instructions on getting and using the latest source from git repositories.

Type the following commands in the shell of your choice.

Make a directory to store the alsa source code in:

        cd /usr/src
        mkdir alsa
        cd alsa
        cp /downloads/alsa-* .

Now unzip and install the <tt>alsa-driver</tt> package:

        bunzip2 alsa-driver-xxx
        tar -xf alsa-driver-xxx
        cd alsa-driver-xxx
        ./configure --with-cards={{{module|unknown}}} --with-sequencer=yes ; make ; make install

Now unzip and install the <tt>alsa-lib</tt> package:

        cd ..
        bunzip2 alsa-lib-xxx
        tar -xf alsa-lib-xxx
        cd alsa-lib-xxx
        ./configure ; make ; make install

Now unzip and install the <tt>alsa-firmware</tt> package:

        cd ..
        bunzip2 alsa-firmware-xxx
        tar -xf alsa-firmware-xxx
        cd alsa-firmware-xxx
        ./configure ; make ; make install

Now unzip and install the <tt>alsa-utils</tt> package:

        cd ..
        bunzip2 alsa-utils-xxx
        tar -xf alsa-utils-xxx
        cd alsa-utils-xxx
        ./configure ; make ; make install

Now insert the modules into the kernel:

        modprobe snd-{{{module|unknown}}} ; modprobe snd-pcm-oss ; modprobe snd-mixer-oss ; modprobe snd-seq-oss

Now adjust your soundcard's volume levels. All mixer channels are muted by default. You must use a native mixer program to unmute appropriate channels, for example <tt>alsamixer</tt> from the <tt>alsa-utils</tt> package. Note that some usb-audio devices do not have internal mixer controls. Run:

        alsamixer

You can also look at the utils/&#x200B;alsasound file. This script is designed for the ''RedHat Linux'' distribution, but it can also be used with other distributions which use System&nbsp;V style rc init scripts. This will allow you to load your modules at boot time. If you don't want to do this you can of course compile them into the kernel instead and save yourself the hassle of coming to terms with the rc init scripts.

===Setting up modprobe and kmod support===

Before you send a mail complaining that "I don't have <tt>/etc/&#x200B;modules.conf</tt>, where do I find it ……" ‒ the <tt>/etc/&#x200B;conf.modules</tt> has been deprecated with a few distro's, but in your case it may still be <tt>/etc/&#x200B;conf.modules</tt>. Basically they are both the same, but recent version of <tt>modutils</tt> use <tt>/etc/&#x200B;modules.conf</tt> instead. Nothing to worry about as such, optionally please update to the latest version of <tt>modutils</tt>. This should solve your problem.

Here's the example for this card. Copy and paste this to the bottom of your <tt>/etc/&#x200B;modules.conf</tt> file.

{{Note|'''Debian GNU/Linux users''' need to save this information into a file in the <tt>/etc/&#x200B;modutils/</tt> directory (eg. <tt>/etc/&#x200B;modutils/&#x200B;alsa</tt>) and run <tt>update-modules</tt>.<br>

Note also that the kernel module '''soundcore''' has been renamed in Debian kernels >2.6.23 into '''snd'''. A workaround is to put a symlink at /lib/modules/x.x.xx/kernel/sound/soundcore.ko pointing to '''snd.ko'''}}

{{Note|'''Systemd users''' need to save this information into a file in the <tt>/etc/&#x200B;modprobe.d/</tt> directory terminating with <tt>.conf</tt> (eg. <tt>/etc/&#x200B;modprobe.d/&#x200B;alsa.conf</tt>).<br>

In case of modules auto-loading instead, the module name must be inserted in a file in the<tt>/etc/&#x200B;modules-load.d/</tt> directory terminating with <tt>.conf</tt> (eg. <tt>/etc/&#x200B;modules-load.d/&#x200B;alsa.conf</tt>).}}


        # ALSA portion
        alias char-major-116 snd
        alias snd-card-0 snd-{{{module|unknown}}}
        # module options should go here
        
        # OSS/Free portion
        alias char-major-14 soundcore
        alias sound-slot-0 snd-card-0
        
        # card #1
        alias sound-service-0-0 snd-mixer-oss
        alias sound-service-0-1 snd-seq-oss
        alias sound-service-0-3 snd-pcm-oss
        alias sound-service-0-8 snd-seq-oss
        alias sound-service-0-12 snd-pcm-oss

To copy and paste the above to your <tt>/etc/&#x200B;modules.conf</tt> file follow these [http://www.alsa-project.org/alsa-doc/doc-php/file-edit.php instructions].