first commit

etc_org/init.d/ondemand

@@ -0,0 +1,73 @@
+#! /bin/sh
+### BEGIN INIT INFO
+# Provides:          ondemand
+# Required-Start:    $remote_fs $all
+# Required-Stop:
+# Default-Start:     2 3 4 5
+# Default-Stop:
+# Short-Description: Set the CPU Frequency Scaling governor to "ondemand"
+### END INIT INFO
+
+# Don't run if we're going to start an Android LXC container:
+[ ! -f /etc/init/lxc-android-config.conf ] || exit 0
+
+PATH=/sbin:/usr/sbin:/bin:/usr/bin
+
+. /lib/init/vars.sh
+. /lib/lsb/init-functions
+
+AVAILABLE="/sys/devices/system/cpu/cpu0/cpufreq/scaling_available_governors"
+DOWN_FACTOR="/sys/devices/system/cpu/cpufreq/ondemand/sampling_down_factor"
+
+case "$1" in
+    start)
+    	start-stop-daemon --start --background --exec /etc/init.d/ondemand -- background
+        ;;
+    background)
+	sleep 60 # probably enough time for desktop login
+
+	[ -f $AVAILABLE ] || exit 0
+	read governors < $AVAILABLE
+	case $governors in
+		*interactive*)
+			GOVERNOR="interactive"
+			break
+			;;
+		*ondemand*)
+			GOVERNOR="ondemand"
+			case $(uname -m) in
+				ppc64*)
+					SAMPLING=100
+				;;
+			esac
+			break
+			;;
+		*powersave*)
+			GOVERNOR="powersave"
+			break
+			;;
+		*)
+			exit 0
+			;;
+	esac
+
+	for CPUFREQ in /sys/devices/system/cpu/cpu*/cpufreq/scaling_governor
+	do
+		[ -f $CPUFREQ ] || continue
+		echo -n $GOVERNOR > $CPUFREQ
+	done
+	if [ -n "$SAMPLING" ] && [ -f $DOWN_FACTOR ]; then
+		echo -n $SAMPLING > $DOWN_FACTOR
+	fi
+	;;
+    restart|reload|force-reload)
+        echo "Error: argument '$1' not supported" >&2
+        exit 3
+        ;;
+    stop)
+        ;;
+    *)
+        echo "Usage: $0 start|stop" >&2
+        exit 3
+        ;;
+esac