archive/alsa-utils/rc.alsa

   1 #! /bin/sh -
   2 #
   3 # Script to start the Advanced Linux Sound Architecture (ALSA)
   4 #
   5 # Copyright (c) 2017, 2019 Matias Fonzo, <selk@dragora.org>.
   6 #
   7 # Licensed under the Apache License, Version 2.0 (the "License");
   8 # you may not use this file except in compliance with the License.
   9 # You may obtain a copy of the License at
  10 #
  11 #    http://www.apache.org/licenses/LICENSE-2.0
  12 #
  13 # Unless required by applicable law or agreed to in writing, software
  14 # distributed under the License is distributed on an "AS IS" BASIS,
  15 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  16 # See the License for the specific language governing permissions and
  17 # limitations under the License.
  18
  19 # Sanity checks
  20 if ! type alsactl > /dev/null 2>&1
  21 then
  22     echo "${0}: Error: alsactl(1) is not available." 1>&2
  23     exit 127;
  24 fi
  25 if ! type amixer > /dev/null 2>&1
  26 then
  27     echo "${0}: Error: amixer(1) is not available." 1>&2
  28     exit 127;
  29 fi
  30
  31 if test -d /proc/asound
  32 then
  33     if test -e /var/lib/alsa/asound.state
  34     then
  35         echo "Restoring mixer from /var/lib/alsa/asound.state ..."
  36         alsactl restore
  37     else
  38         echo "Setting local values for the ALSA mixer ..."
  39         amixer set Master 90% unmute       > /dev/null 2>&1
  40         amixer set Front 80% unmute        > /dev/null 2>&1
  41         amixer set PCM 80% unmute          > /dev/null 2>&1
  42         amixer set Side 80% unmute         > /dev/null 2>&1
  43         amixer set CD 90% unmute           > /dev/null 2>&1
  44         amixer set Headphone unmute        > /dev/null 2>&1
  45         amixer set Mic 90% unmute          > /dev/null 2>&1
  46         amixer set 'Front Mic' 90% unmute  > /dev/null 2>&1
  47         alsactl store
  48     fi
  49 fi
  50