Add example init script

README.md

@@ -9,3 +9,5 @@ The getvolume utility was originally written by Yu-Jie Lin:
 It was adopted by OpenDingux to save the current volume setting on system shutdown. A setvolume utility was added to restore the volume on boot.
 
 You can pass "default" as the device name in most cases. Typical control names are "PCM" or "Master"; these match the control names shown in alsamixer.
+
+S90volume.sh is an example init script to save and restore volume. It was written for use in the BusyBox init system, but it should be easy to adapt to other script-based init systems.

S90volume.sh

@@ -0,0 +1,26 @@
+#!/bin/sh
+#
+# Simple script to load/store ALSA volume.
+#
+
+VOLUME_STATEFILE=/usr/local/etc/volume.state
+VOLUME_DEVICE=default
+VOLUME_CONTROL=PCM
+
+case "$1" in
+	start)
+		if [ -f $VOLUME_STATEFILE ]; then
+			echo "Loading sound volume..."
+			/usr/bin/alsa-setvolume $VOLUME_DEVICE $VOLUME_CONTROL `cat $VOLUME_STATEFILE`
+		fi
+		;;
+	stop)
+		echo "Storing sound volume..."
+		/usr/bin/alsa-getvolume $VOLUME_DEVICE $VOLUME_CONTROL > $VOLUME_STATEFILE
+		;;
+	*)
+		echo "Usage: $0 {start|stop}"
+		exit 1
+esac
+
+exit $?