plugin-audio/rootfs/etc/s6-overlay/scripts/alsa-mixer.sh

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#!/usr/bin/with-contenv bashio
# ==============================================================================
# Initial ALSA mixer adjustments
# ==============================================================================
# Guard if no sound support found
if ! bashio::fs.directory_exists /dev/snd; then
bashio::log.warning "Can't find sound device for ALSA mixer settings"
bashio::exit.ok
fi
# Loop over all Controls
for control in /dev/snd/control*
do
bashio::log.info "Adjust ALSA mixer settings for ${control}"
soundconfig "${control}"
done