diff --git a/include/gui/ISensorServer.h b/include/gui/ISensorServer.h
index 3e05076..9c8afc5 100644
--- a/include/gui/ISensorServer.h
+++ b/include/gui/ISensorServer.h
@@ -36,7 +36,7 @@
 public:
     DECLARE_META_INTERFACE(SensorServer);
 
-    virtual Vector<Sensor> getSensorList()= 0;
+    virtual Vector<Sensor> getSensorList() = 0;
     virtual sp<ISensorEventConnection> createSensorEventConnection() = 0;
 };
 
diff --git a/include/gui/Sensor.h b/include/gui/Sensor.h
index 86a16f1..e696d63 100644
--- a/include/gui/Sensor.h
+++ b/include/gui/Sensor.h
@@ -51,7 +51,8 @@
         TYPE_PROXIMITY      = ASENSOR_TYPE_PROXIMITY
     };
 
-    Sensor();
+            Sensor();
+            Sensor(struct sensor_t const* hwSensor);
     virtual ~Sensor();
 
     const String8& getName() const;
diff --git a/include/gui/SensorEventQueue.h b/include/gui/SensorEventQueue.h
index d8d8128..bb03c12 100644
--- a/include/gui/SensorEventQueue.h
+++ b/include/gui/SensorEventQueue.h
@@ -42,6 +42,7 @@
 
 class ISensorEventConnection;
 class Sensor;
+class PollLoop;
 
 // ----------------------------------------------------------------------------
 
@@ -56,13 +57,21 @@
     ssize_t write(ASensorEvent const* events, size_t numEvents);
     ssize_t read(ASensorEvent* events, size_t numEvents);
 
+    status_t waitForEvent() const;
+    status_t wake() const;
+
     status_t enableSensor(Sensor const* sensor) const;
     status_t disableSensor(Sensor const* sensor) const;
+    status_t enableSensor(int32_t handle) const;
+    status_t disableSensor(int32_t handle) const;
     status_t setEventRate(Sensor const* sensor, nsecs_t ns) const;
 
 private:
+    sp<PollLoop> getPollLoop() const;
     sp<ISensorEventConnection> mSensorEventConnection;
     sp<SensorChannel> mSensorChannel;
+    mutable Mutex mLock;
+    mutable sp<PollLoop> mPollLoop;
 };
 
 // ----------------------------------------------------------------------------
diff --git a/include/gui/SensorManager.h b/include/gui/SensorManager.h
index 0d65334..e1b1a7b 100644
--- a/include/gui/SensorManager.h
+++ b/include/gui/SensorManager.h
@@ -47,13 +47,13 @@
     SensorManager();
     ~SensorManager();
 
-    ssize_t getSensorList(Sensor**) const;
-    Sensor* getDefaultSensor(int type);
+    ssize_t getSensorList(Sensor const* const** list) const;
+    Sensor const* getDefaultSensor(int type);
     sp<SensorEventQueue> createEventQueue();
 
 private:
     sp<ISensorServer> mSensorServer;
-    Sensor* mSensorList;
+    Sensor const** mSensorList;
     Vector<Sensor> mSensors;
 };