Changeset 9700e433 for multimedia/libdriv

Timestamp:

07/31/2005 05:19:41 PM (19 years ago)

Author:

DJ Lucas <dj@…>

Branches:

10.0, 10.1, 11.0, 11.1, 11.2, 11.3, 12.0, 12.1, 6.1, 6.2, 6.2.0, 6.2.0-rc1, 6.2.0-rc2, 6.3, 6.3-rc1, 6.3-rc2, 6.3-rc3, 7.10, 7.4, 7.5, 7.6, 7.6-blfs, 7.6-systemd, 7.7, 7.8, 7.9, 8.0, 8.1, 8.2, 8.3, 8.4, 9.0, 9.1, basic, bdubbs/svn, elogind, gnome, kde5-13430, kde5-14269, kde5-14686, kea, ken/TL2024, ken/inkscape-core-mods, ken/tuningfonts, krejzi/svn, lazarus, lxqt, nosym, perl-modules, plabs/newcss, plabs/python-mods, python3.11, qt5new, rahul/power-profiles-daemon, renodr/vulkan-addition, systemd-11177, systemd-13485, trunk, upgradedb, xry111/intltool, xry111/llvm18, xry111/soup3, xry111/test-20220226, xry111/xf86-video-removal

Children:

5e82411c

Parents:

4d06a01f

Message:

Alsa startup scripts updated

git-svn-id: svn://svn.linuxfromscratch.org/BLFS/trunk/BOOK@4858 af4574ff-66df-0310-9fd7-8a98e5e911e0

File:

• multimedia/libdriv/alsa-utils.xml (modified) (2 diffs)

multimedia/libdriv/alsa-utils.xml

@@ -97 +97 @@
 
       <para>Probably the easiest way to store mixer levels is to set and
-      retrieve them using a bootscript.</para>
+      retrieve them using at boot and shutdown.  We'll use a bootscript to
+      store the values at shutdown.</para>
 
       <indexterm zone="alsa-utils alsa-utils-init">
@@ -114 +115 @@
       OSS mixer) to change this.</para>
 
-      <para>The first time the above script is run, it will complain that
-      there is no state in <filename>/etc/asound.state</filename>.  You can
-      prevent this by running the following commands as the
-      <systemitem class="username">root</systemitem> user after
-      installing <application>ALSA Utilities</application>:</para>
+      <para>The first time the dev.d script below is run, it will complain 
+      that there is no state in <filename>/etc/asound.state</filename>.  
+      You can prevent this by running the following commands while still 
+      the <systemitem class="username">root</systemitem> user (after
+      installing <application>ALSA Utilities</application>):</para>
 
 <screen role="root"><userinput>touch /etc/asound.state &amp;&amp;
 alsactl store</userinput></screen>
 
-      <para>A final note is that the lines loading <filename>sfxload</filename>
-      are commented out.  They are there as an example of other things you may
-      wish to do in the startup script.  <filename>sfxload</filename> is a
-      separate package of interest to SoundBlaster AWE and Live!
-      users.  It is designed for loading "sound-fonts" (which are used for
-      MIDI output).  You may wish to delete these lines and add
-      your own or, if you have the relevant sound card, install
-      <filename>sfxload</filename> and uncomment them.</para>
+      <para>We will restore the volume using the stored settings and a 
+      dev.d handler script that will execute when the device is detected 
+      durring boot (when pluged in for USB devices).  While still the 
+      <systemitem class="username">root</systemitem> user, create the dev.d
+      handler script with the following commands:</para>
+
+<screen role="root"><userinput>install -d -m755 /etc/dev.d/snd &amp;&amp;
+cat &gt;&gt; /etc/dev.d/snd/alsa.dev &lt;&lt; "EOF" &amp;&amp;
+#!/bin/sh -e
+DEV_BASENAME="${DEVNAME##*/}"
+N="${DEV_BASENAME#controlC}"
+case "$DEV_BASENAME" in
+        controlC[0-7])
+                x=0
+                while [ $x -lt 20 ]
+                do
+                        sleep 1
+                        if [ -f /usr/sbin/alsactl ]; then
+                        /usr/sbin/alsactl restore $N
+                        exit 0
+                        else
+                                if [ $x -eq 20 ]; then
+                                exit 1
+                                fi
+                        fi
+                done &amp;
+        ;;
+esac
+exit 0
+EOF
+chmod 755 /etc/dev.d/snd/alsa.dev</userinput></screen>
+
+
+      <para>You may wish to do additional configuration on a per card basis.
+      For example, if you wish to load soundfont banks into the first 
+      device (card0), use the following sample script:</para>
+
+<screen>#!/bin/sh -e
+# Begin /etc/dev.d/snd/controlC0/asfxload.dev
+
+# Load GM8.sf2 for soundcard 0
+/usr/bin/asfxload /usr/share/sounds/sf2/8mbgmsfx.sf2 -D "hw:0,2"
+
+# End /etc/dev.d/snd/controlC0/sfxload.dev</screen>
 
     </sect3>