diff --git a/libs/gui/ISensorServer.cpp b/libs/gui/ISensorServer.cpp
index f581b5c..3a4c7e4 100644
--- a/libs/gui/ISensorServer.cpp
+++ b/libs/gui/ISensorServer.cpp
@@ -35,7 +35,8 @@
 enum {
     GET_SENSOR_LIST = IBinder::FIRST_CALL_TRANSACTION,
     CREATE_SENSOR_EVENT_CONNECTION,
-    ENABLE_DATA_INJECTION
+    ENABLE_DATA_INJECTION,
+    GET_DYNAMIC_SENSOR_LIST,
 };
 
 class BpSensorServer : public BpInterface<ISensorServer>
@@ -65,6 +66,23 @@
         return v;
     }
 
+    virtual Vector<Sensor> getDynamicSensorList(const String16& opPackageName)
+    {
+        Parcel data, reply;
+        data.writeInterfaceToken(ISensorServer::getInterfaceDescriptor());
+        data.writeString16(opPackageName);
+        remote()->transact(GET_DYNAMIC_SENSOR_LIST, data, &reply);
+        Sensor s;
+        Vector<Sensor> v;
+        uint32_t n = reply.readUint32();
+        v.setCapacity(n);
+        while (n--) {
+            reply.read(s);
+            v.add(s);
+        }
+        return v;
+    }
+
     virtual sp<ISensorEventConnection> createSensorEventConnection(const String8& packageName,
              int mode, const String16& opPackageName)
     {
@@ -124,6 +142,17 @@
             reply->writeInt32(static_cast<int32_t>(ret));
             return NO_ERROR;
         }
+        case GET_DYNAMIC_SENSOR_LIST: {
+            CHECK_INTERFACE(ISensorServer, data, reply);
+            const String16& opPackageName = data.readString16();
+            Vector<Sensor> v(getDynamicSensorList(opPackageName));
+            size_t n = v.size();
+            reply->writeUint32(static_cast<uint32_t>(n));
+            for (size_t i = 0; i < n; i++) {
+                reply->write(v[i]);
+            }
+            return NO_ERROR;
+        }
     }
     return BBinder::onTransact(code, data, reply, flags);
 }
diff --git a/libs/gui/Sensor.cpp b/libs/gui/Sensor.cpp
index 0a0fc4b..a6cb908 100644
--- a/libs/gui/Sensor.cpp
+++ b/libs/gui/Sensor.cpp
@@ -188,7 +188,7 @@
         if (halVersion < SENSORS_DEVICE_API_VERSION_1_3) {
             mFlags |= SENSOR_FLAG_WAKE_UP;
         }
-         break;
+        break;
     case SENSOR_TYPE_WAKE_GESTURE:
         mStringType = SENSOR_STRING_TYPE_WAKE_GESTURE;
         mFlags |= SENSOR_FLAG_ONE_SHOT_MODE;
@@ -217,6 +217,10 @@
             mFlags |= SENSOR_FLAG_WAKE_UP;
         }
         break;
+    case SENSOR_TYPE_DYNAMIC_SENSOR_META:
+        mStringType = SENSOR_STRING_TYPE_DYNAMIC_SENSOR_META;
+        mFlags = SENSOR_FLAG_SPECIAL_REPORTING_MODE; // special trigger and non-wake up
+        break;
     default:
         // Only pipe the stringType, requiredPermission and flags for custom sensors.
         if (halVersion > SENSORS_DEVICE_API_VERSION_1_0 && hwSensor->stringType) {
@@ -368,13 +372,18 @@
     return ((mFlags & REPORTING_MODE_MASK) >> REPORTING_MODE_SHIFT);
 }
 
+const Sensor::uuid_t& Sensor::getUuid() const {
+    return mUuid;
+}
+
 size_t Sensor::getFlattenedSize() const
 {
     size_t fixedSize =
-            sizeof(int32_t) * 3 +
-            sizeof(float) * 4 +
-            sizeof(int32_t) * 6 +
-            sizeof(bool);
+            sizeof(mVersion) + sizeof(mHandle) + sizeof(mType) +
+            sizeof(mMinValue) + sizeof(mMaxValue) + sizeof(mResolution) +
+            sizeof(mPower) + sizeof(mMinDelay) + sizeof(mFifoMaxEventCount) +
+            sizeof(mFifoMaxEventCount) + sizeof(mRequiredPermissionRuntime) +
+            sizeof(mRequiredAppOp) + sizeof(mMaxDelay) + sizeof(mFlags) + sizeof(mUuid);
 
     size_t variableSize =
             sizeof(uint32_t) + FlattenableUtils::align<4>(mName.length()) +
@@ -408,6 +417,7 @@
     FlattenableUtils::write(buffer, size, mRequiredAppOp);
     FlattenableUtils::write(buffer, size, mMaxDelay);
     FlattenableUtils::write(buffer, size, mFlags);
+    FlattenableUtils::write(buffer, size, mUuid);
     return NO_ERROR;
 }
 
@@ -419,11 +429,11 @@
         return NO_MEMORY;
     }
 
-    size_t fixedSize =
-            sizeof(int32_t) * 3 +
-            sizeof(float) * 4 +
-            sizeof(int32_t) * 5;
-    if (size < fixedSize) {
+    size_t fixedSize1 =
+            sizeof(mVersion) + sizeof(mHandle) + sizeof(mType) + sizeof(mMinValue) +
+            sizeof(mMaxValue) + sizeof(mResolution) + sizeof(mPower) + sizeof(mMinDelay) +
+            sizeof(mFifoMaxEventCount) + sizeof(mFifoMaxEventCount);
+    if (size < fixedSize1) {
         return NO_MEMORY;
     }
 
@@ -444,10 +454,19 @@
     if (!unflattenString8(buffer, size, mRequiredPermission)) {
         return NO_MEMORY;
     }
+
+    size_t fixedSize2 =
+            sizeof(mRequiredPermissionRuntime) + sizeof(mRequiredAppOp) + sizeof(mMaxDelay) +
+            sizeof(mFlags) + sizeof(mUuid);
+    if (size < fixedSize2) {
+        return NO_MEMORY;
+    }
+
     FlattenableUtils::read(buffer, size, mRequiredPermissionRuntime);
     FlattenableUtils::read(buffer, size, mRequiredAppOp);
     FlattenableUtils::read(buffer, size, mMaxDelay);
     FlattenableUtils::read(buffer, size, mFlags);
+    FlattenableUtils::read(buffer, size, mUuid);
     return NO_ERROR;
 }
 
diff --git a/libs/gui/SensorManager.cpp b/libs/gui/SensorManager.cpp
index 33608b5..225bfa8 100644
--- a/libs/gui/SensorManager.cpp
+++ b/libs/gui/SensorManager.cpp
@@ -89,19 +89,16 @@
 }
 
 SensorManager::SensorManager(const String16& opPackageName)
-    : mSensorList(0), mOpPackageName(opPackageName)
-{
+    : mSensorList(0), mOpPackageName(opPackageName) {
     // okay we're not locked here, but it's not needed during construction
     assertStateLocked();
 }
 
-SensorManager::~SensorManager()
-{
+SensorManager::~SensorManager() {
     free(mSensorList);
 }
 
-void SensorManager::sensorManagerDied()
-{
+void SensorManager::sensorManagerDied() {
     Mutex::Autolock _l(mLock);
     mSensorServer.clear();
     free(mSensorList);
@@ -109,7 +106,7 @@
     mSensors.clear();
 }
 
-status_t SensorManager::assertStateLocked() const {
+status_t SensorManager::assertStateLocked() {
     bool initSensorManager = false;
     if (mSensorServer == NULL) {
         initSensorManager = true;
@@ -136,13 +133,13 @@
         }
 
         class DeathObserver : public IBinder::DeathRecipient {
-            SensorManager& mSensorManger;
+            SensorManager& mSensorManager;
             virtual void binderDied(const wp<IBinder>& who) {
                 ALOGW("sensorservice died [%p]", who.unsafe_get());
-                mSensorManger.sensorManagerDied();
+                mSensorManager.sensorManagerDied();
             }
         public:
-            DeathObserver(SensorManager& mgr) : mSensorManger(mgr) { }
+            DeathObserver(SensorManager& mgr) : mSensorManager(mgr) { }
         };
 
         LOG_ALWAYS_FATAL_IF(mSensorServer.get() == NULL, "getService(SensorService) NULL");
@@ -164,8 +161,7 @@
     return NO_ERROR;
 }
 
-ssize_t SensorManager::getSensorList(Sensor const* const** list) const
-{
+ssize_t SensorManager::getSensorList(Sensor const* const** list) {
     Mutex::Autolock _l(mLock);
     status_t err = assertStateLocked();
     if (err < 0) {
@@ -175,6 +171,19 @@
     return static_cast<ssize_t>(mSensors.size());
 }
 
+ssize_t SensorManager::getDynamicSensorList(Vector<Sensor> & dynamicSensors) {
+    Mutex::Autolock _l(mLock);
+    status_t err = assertStateLocked();
+    if (err < 0) {
+        return static_cast<ssize_t>(err);
+    }
+
+    dynamicSensors = mSensorServer->getDynamicSensorList(mOpPackageName);
+    size_t count = dynamicSensors.size();
+
+    return static_cast<ssize_t>(count);
+}
+
 Sensor const* SensorManager::getDefaultSensor(int type)
 {
     Mutex::Autolock _l(mLock);