These are FreeBSD specific

init.d.FreeBSD/mixer

@@ -0,0 +1,46 @@
+#!/sbin/runscript
+# Copyright 2007-2008 Roy Marples <roy@marples.name>
+# All rights reserved. Released under the 2-clause BSD license.
+
+extra_commands="restore"
+
+depend()
+{
+	need localmount 
+}
+
+restore()
+{
+	local mixer= retval=0
+	ebegin "Restoring mixer settings"
+	eindent
+	for mixer in /dev/mixer*; do
+		if [ -r "/var/db/${mixer#/dev/}-state" ]; then
+			vebegin "${mixer}"
+			mixer -f "${mixer}" \
+			$(cat "/var/db/${mixer#/dev/}-state") >/dev/null
+			veend $?
+			: $((retval += $?))
+		fi
+	done
+}
+
+start()
+{
+	restore
+}
+
+stop()
+{
+	local mixer= retval=0
+	ebegin "Saving mixer settings"
+	eindent
+	for mixer in /dev/mixer*; do
+		vebegin "${mixer}"
+		mixer -f "${mixer}" -s >/var/db/"${mixer#/dev/}"-state
+		veend $?
+		: $((retval += $?))
+	done
+	eoutdent
+	eend ${retval}
+}