diff --git a/include/gui/DisplayEventReceiver.h b/include/gui/DisplayEventReceiver.h
new file mode 100644
index 0000000..8d07c0e
--- /dev/null
+++ b/include/gui/DisplayEventReceiver.h
@@ -0,0 +1,105 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_GUI_DISPLAY_EVENT_H
+#define ANDROID_GUI_DISPLAY_EVENT_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <utils/Errors.h>
+#include <utils/RefBase.h>
+#include <utils/Timers.h>
+
+#include <binder/IInterface.h>
+
+// ----------------------------------------------------------------------------
+
+namespace android {
+
+// ----------------------------------------------------------------------------
+
+class BitTube;
+class IDisplayEventConnection;
+
+// ----------------------------------------------------------------------------
+
+class DisplayEventReceiver {
+public:
+    enum {
+        DISPLAY_EVENT_VSYNC = 'vsyn'
+    };
+
+    struct Event {
+
+        struct Header {
+            uint32_t type;
+            nsecs_t timestamp;
+        };
+
+        struct VSync {
+            uint32_t count;
+        };
+
+        Header header;
+        union {
+            VSync vsync;
+        };
+    };
+
+public:
+    /*
+     * DisplayEventReceiver creates and registers an event connection with
+     * SurfaceFlinger. Events start being delivered immediately.
+     */
+    DisplayEventReceiver();
+
+    /*
+     * ~DisplayEventReceiver severs the connection with SurfaceFlinger, new events
+     * stop being delivered immediately. Note that the queue could have
+     * some events pending. These will be delivered.
+     */
+    ~DisplayEventReceiver();
+
+    /*
+     * initCheck returns the state of DisplayEventReceiver after construction.
+     */
+    status_t initCheck() const;
+
+    /*
+     * getFd returns the file descriptor to use to receive events.
+     * OWNERSHIP IS RETAINED by DisplayEventReceiver. DO NOT CLOSE this
+     * file-descriptor.
+     */
+    int getFd() const;
+
+    /*
+     * getEvents reads event from the queue and returns how many events were
+     * read. Returns 0 if there are no more events or a negative error code.
+     * If NOT_ENOUGH_DATA is returned, the object has become invalid forever, it
+     * should be destroyed and getEvents() shouldn't be called again.
+     */
+    ssize_t getEvents(Event* events, size_t count);
+
+private:
+    sp<IDisplayEventConnection> mEventConnection;
+    sp<BitTube> mDataChannel;
+};
+
+// ----------------------------------------------------------------------------
+}; // namespace android
+
+#endif // ANDROID_GUI_DISPLAY_EVENT_H
diff --git a/include/gui/IDisplayEventConnection.h b/include/gui/IDisplayEventConnection.h
new file mode 100644
index 0000000..8728bb5
--- /dev/null
+++ b/include/gui/IDisplayEventConnection.h
@@ -0,0 +1,55 @@
+/*
+ * Copyright (C) 2011 The Android Open Source Project
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ *      http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+ * See the License for the specific language governing permissions and
+ * limitations under the License.
+ */
+
+#ifndef ANDROID_GUI_IDISPLAY_EVENT_CONNECTION_H
+#define ANDROID_GUI_IDISPLAY_EVENT_CONNECTION_H
+
+#include <stdint.h>
+#include <sys/types.h>
+
+#include <utils/Errors.h>
+#include <utils/RefBase.h>
+
+#include <binder/IInterface.h>
+
+namespace android {
+// ----------------------------------------------------------------------------
+
+class BitTube;
+
+class IDisplayEventConnection : public IInterface
+{
+public:
+    DECLARE_META_INTERFACE(DisplayEventConnection);
+
+    virtual sp<BitTube> getDataChannel() const = 0;
+};
+
+// ----------------------------------------------------------------------------
+
+class BnDisplayEventConnection : public BnInterface<IDisplayEventConnection>
+{
+public:
+    virtual status_t    onTransact( uint32_t code,
+                                    const Parcel& data,
+                                    Parcel* reply,
+                                    uint32_t flags = 0);
+};
+
+// ----------------------------------------------------------------------------
+}; // namespace android
+
+#endif // ANDROID_GUI_IDISPLAY_EVENT_CONNECTION_H
diff --git a/include/surfaceflinger/ISurfaceComposer.h b/include/surfaceflinger/ISurfaceComposer.h
index 5eb09c7..58fd89d 100644
--- a/include/surfaceflinger/ISurfaceComposer.h
+++ b/include/surfaceflinger/ISurfaceComposer.h
@@ -33,8 +33,9 @@
 namespace android {
 // ----------------------------------------------------------------------------
 
-class IMemoryHeap;
 class ComposerState;
+class IDisplayEventConnection;
+class IMemoryHeap;
 
 class ISurfaceComposer : public IInterface
 {
@@ -124,13 +125,19 @@
             uint32_t reqWidth, uint32_t reqHeight,
             uint32_t minLayerZ, uint32_t maxLayerZ) = 0;
 
+    /* triggers screen off animation */
     virtual status_t turnElectronBeamOff(int32_t mode) = 0;
+
+    /* triggers screen on animation */
     virtual status_t turnElectronBeamOn(int32_t mode) = 0;
 
     /* verify that an ISurfaceTexture was created by SurfaceFlinger.
      */
     virtual bool authenticateSurfaceTexture(
             const sp<ISurfaceTexture>& surface) const = 0;
+
+    /* return an IDisplayEventConnection */
+    virtual sp<IDisplayEventConnection> createDisplayEventConnection() = 0;
 };
 
 // ----------------------------------------------------------------------------
@@ -151,6 +158,7 @@
         TURN_ELECTRON_BEAM_OFF,
         TURN_ELECTRON_BEAM_ON,
         AUTHENTICATE_SURFACE,
+        CREATE_DISPLAY_EVENT_CONNECTION,
     };
 
     virtual status_t    onTransact( uint32_t code,