diff --git a/include/input/InputDevice.h b/include/input/InputDevice.h
index d8256c1..1419b45 100644
--- a/include/input/InputDevice.h
+++ b/include/input/InputDevice.h
@@ -67,10 +67,11 @@
         float resolution;
     };
 
-    void initialize(int32_t id, int32_t generation, const InputDeviceIdentifier& identifier,
-            const String8& alias, bool isExternal);
+    void initialize(int32_t id, int32_t generation, int32_t controllerNumber,
+            const InputDeviceIdentifier& identifier, const String8& alias, bool isExternal);
 
     inline int32_t getId() const { return mId; }
+    inline int32_t getControllerNumber() const { return mControllerNumber; }
     inline int32_t getGeneration() const { return mGeneration; }
     inline const InputDeviceIdentifier& getIdentifier() const { return mIdentifier; }
     inline const String8& getAlias() const { return mAlias; }
@@ -111,6 +112,7 @@
 private:
     int32_t mId;
     int32_t mGeneration;
+    int32_t mControllerNumber;
     InputDeviceIdentifier mIdentifier;
     String8 mAlias;
     bool mIsExternal;
diff --git a/libs/input/InputDevice.cpp b/libs/input/InputDevice.cpp
index 54703d4..b11110a 100644
--- a/libs/input/InputDevice.cpp
+++ b/libs/input/InputDevice.cpp
@@ -127,26 +127,25 @@
 // --- InputDeviceInfo ---
 
 InputDeviceInfo::InputDeviceInfo() {
-    initialize(-1, -1, InputDeviceIdentifier(), String8(), false);
+    initialize(-1, 0, -1, InputDeviceIdentifier(), String8(), false);
 }
 
 InputDeviceInfo::InputDeviceInfo(const InputDeviceInfo& other) :
-        mId(other.mId), mGeneration(other.mGeneration), mIdentifier(other.mIdentifier),
-        mAlias(other.mAlias), mIsExternal(other.mIsExternal), mSources(other.mSources),
-        mKeyboardType(other.mKeyboardType),
-        mKeyCharacterMap(other.mKeyCharacterMap),
-        mHasVibrator(other.mHasVibrator),
-        mHasButtonUnderPad(other.mHasButtonUnderPad),
-        mMotionRanges(other.mMotionRanges) {
+        mId(other.mId), mGeneration(other.mGeneration), mControllerNumber(other.mControllerNumber),
+        mIdentifier(other.mIdentifier), mAlias(other.mAlias), mIsExternal(other.mIsExternal),
+        mSources(other.mSources), mKeyboardType(other.mKeyboardType),
+        mKeyCharacterMap(other.mKeyCharacterMap), mHasVibrator(other.mHasVibrator),
+        mHasButtonUnderPad(other.mHasButtonUnderPad), mMotionRanges(other.mMotionRanges) {
 }
 
 InputDeviceInfo::~InputDeviceInfo() {
 }
 
-void InputDeviceInfo::initialize(int32_t id, int32_t generation,
+void InputDeviceInfo::initialize(int32_t id, int32_t generation, int32_t controllerNumber,
         const InputDeviceIdentifier& identifier, const String8& alias, bool isExternal) {
     mId = id;
     mGeneration = generation;
+    mControllerNumber = controllerNumber;
     mIdentifier = identifier;
     mAlias = alias;
     mIsExternal = isExternal;