decrease the light-sensor rate to 1Hz (from ~15Hz) for ALS purposes.
the intent here is to save power.
Change-Id: I6cc1cae865cc46551afcfcec9ca03faaa5b6936f
diff --git a/services/java/com/android/server/PowerManagerService.java b/services/java/com/android/server/PowerManagerService.java
index 1b0addf..6b23b33 100644
--- a/services/java/com/android/server/PowerManagerService.java
+++ b/services/java/com/android/server/PowerManagerService.java
@@ -100,10 +100,13 @@
private static final int LONG_KEYLIGHT_DELAY = 6000; // t+6 sec
private static final int LONG_DIM_TIME = 7000; // t+N-5 sec
- // How long to wait to debounce light sensor changes.
+ // How long to wait to debounce light sensor changes in milliseconds
private static final int LIGHT_SENSOR_DELAY = 2000;
- // For debouncing the proximity sensor.
+ // light sensor events rate in microseconds
+ private static final int LIGHT_SENSOR_RATE = 1000000;
+
+ // For debouncing the proximity sensor in milliseconds
private static final int PROXIMITY_SENSOR_DELAY = 1000;
// trigger proximity if distance is less than 5 cm
@@ -3049,7 +3052,7 @@
try {
if (enable) {
mSensorManager.registerListener(mLightListener, mLightSensor,
- SensorManager.SENSOR_DELAY_NORMAL);
+ LIGHT_SENSOR_RATE);
} else {
mSensorManager.unregisterListener(mLightListener);
mHandler.removeCallbacks(mAutoBrightnessTask);