mendelgusmao · May 5, 2016 19:48 · May 5, 2016
diff --git a/fan.sh b/fan.sh
@@ -0,0 +1,27 @@
+minSpeed=1500
+maxSpeed=5500
+highTemp=70
+normalTemp=40
+
+output=/sys/devices/platform/applesmc.768/fan1_output
+manual=/sys/devices/platform/applesmc.768/fan1_manual
+
+currentSpeed=$(cat $output)
+
+[ "$1" = "" ] && echo $currentSpeed && exit 0
+
+if [ "$1" = "auto" ]; then
+        currentTemp=$(sensors | awk -F'[^0-9]*' '/Core/{sum = sum + $3; total = total + 1}END{OFMT = "%.0f"; print sum / total}')
+        newSpeed=$(echo "$minSpeed + (($maxSpeed - $minSpeed) / ($highTemp - $normalTemp) * ($currentTemp - $normalTemp))" | bc | cut -d. -$
+        if [ $newSpeed -eq $currentSpeed ]; then
+                exit 0
+        fi
+else
+        newSpeed=$1
+fi
+
+bash -c "echo 1 > $manual"
+bash -c "echo $newSpeed > $output"
+#sudo bash -c "echo 0 > $manual"
+
+echo "$currentSpeed > $(cat $output) @ $currentTemp"