use more variables for init skript

package/alsa-utils/Makefile

@@ -5,7 +5,7 @@ include ${TOPDIR}/rules.mk
 
 PKG_NAME:=		alsa-utils
 PKG_VERSION:=		1.0.22
-PKG_RELEASE:=		1
+PKG_RELEASE:=		2
 PKG_MD5SUM:=		f7180316188552ee1e6759a03f1fe98d
 PKG_DESCR:=		ALSA mixer utility
 PKG_SECTION:=		utils

package/alsa-utils/files/alsa-utils.postinst

@@ -1,4 +1,5 @@
 #!/bin/sh
 . $IPKG_INSTROOT/etc/functions.sh
 add_rcconf amixer
-
+add_rcconf amixer_volume amixer_volume "75%"
+add_rcconf amixer_mixer amixer_mixer "Master"

package/alsa-utils/files/amixer.init

@@ -10,14 +10,11 @@ autostart)
 	exec sh $0 start
 	;;
 start)
-	amixer set Master on
-	amixer set PCM on
-	amixer set Master 75%
-	amixer set PCM 75%
+	amixer set $amixer_mixer on
+	amixer set $amixer_mixer $amixer_volume
 	;;
 stop)
-	amixer set Master off
-	amixer set PCM off
+	amixer set $amixer_mixer off
 	;;
 restart)
 	sh $0 stop