diff --git a/libs/input/InputTransport.cpp b/libs/input/InputTransport.cpp
index eda01c5..7335b30 100644
--- a/libs/input/InputTransport.cpp
+++ b/libs/input/InputTransport.cpp
@@ -63,10 +63,6 @@
 // far into the future.  This time is further bounded by 50% of the last time delta.
 static const nsecs_t RESAMPLE_MAX_PREDICTION = 8 * NANOS_PER_MS;
 
-// A placeholder sequence number used to initialize native input events before InputFlinger is
-// migrated to new sequence number system.
-static constexpr int32_t INPUT_FLINGER_SEQUENCE_NUM = 0;
-
 /**
  * System property for enabling / disabling touch resampling.
  * Resampling extrapolates / interpolates the reported touch event coordinates to better
@@ -143,6 +139,8 @@
         case InputMessage::Type::KEY: {
             // uint32_t seq
             msg->body.key.seq = body.key.seq;
+            // int32_t eventId
+            msg->body.key.eventId = body.key.eventId;
             // nsecs_t eventTime
             msg->body.key.eventTime = body.key.eventTime;
             // int32_t deviceId
@@ -172,6 +170,8 @@
         case InputMessage::Type::MOTION: {
             // uint32_t seq
             msg->body.motion.seq = body.motion.seq;
+            // int32_t eventId
+            msg->body.motion.eventId = body.motion.eventId;
             // nsecs_t eventTime
             msg->body.motion.eventTime = body.motion.eventTime;
             // int32_t deviceId
@@ -238,6 +238,7 @@
         }
         case InputMessage::Type::FOCUS: {
             msg->body.focus.seq = body.focus.seq;
+            msg->body.focus.eventId = body.focus.eventId;
             msg->body.focus.hasFocus = body.focus.hasFocus;
             msg->body.focus.inTouchMode = body.focus.inTouchMode;
             break;
@@ -436,11 +437,12 @@
 InputPublisher::~InputPublisher() {
 }
 
-status_t InputPublisher::publishKeyEvent(uint32_t seq, int32_t deviceId, int32_t source,
-                                         int32_t displayId, std::array<uint8_t, 32> hmac,
-                                         int32_t action, int32_t flags, int32_t keyCode,
-                                         int32_t scanCode, int32_t metaState, int32_t repeatCount,
-                                         nsecs_t downTime, nsecs_t eventTime) {
+status_t InputPublisher::publishKeyEvent(uint32_t seq, int32_t eventId, int32_t deviceId,
+                                         int32_t source, int32_t displayId,
+                                         std::array<uint8_t, 32> hmac, int32_t action,
+                                         int32_t flags, int32_t keyCode, int32_t scanCode,
+                                         int32_t metaState, int32_t repeatCount, nsecs_t downTime,
+                                         nsecs_t eventTime) {
     if (ATRACE_ENABLED()) {
         std::string message = StringPrintf("publishKeyEvent(inputChannel=%s, keyCode=%" PRId32 ")",
                 mChannel->getName().c_str(), keyCode);
@@ -462,6 +464,7 @@
     InputMessage msg;
     msg.header.type = InputMessage::Type::KEY;
     msg.body.key.seq = seq;
+    msg.body.key.eventId = eventId;
     msg.body.key.deviceId = deviceId;
     msg.body.key.source = source;
     msg.body.key.displayId = displayId;
@@ -478,7 +481,7 @@
 }
 
 status_t InputPublisher::publishMotionEvent(
-        uint32_t seq, int32_t deviceId, int32_t source, int32_t displayId,
+        uint32_t seq, int32_t eventId, int32_t deviceId, int32_t source, int32_t displayId,
         std::array<uint8_t, 32> hmac, int32_t action, int32_t actionButton, int32_t flags,
         int32_t edgeFlags, int32_t metaState, int32_t buttonState,
         MotionClassification classification, float xScale, float yScale, float xOffset,
@@ -519,6 +522,7 @@
     InputMessage msg;
     msg.header.type = InputMessage::Type::MOTION;
     msg.body.motion.seq = seq;
+    msg.body.motion.eventId = eventId;
     msg.body.motion.deviceId = deviceId;
     msg.body.motion.source = source;
     msg.body.motion.displayId = displayId;
@@ -549,7 +553,8 @@
     return mChannel->sendMessage(&msg);
 }
 
-status_t InputPublisher::publishFocusEvent(uint32_t seq, bool hasFocus, bool inTouchMode) {
+status_t InputPublisher::publishFocusEvent(uint32_t seq, int32_t eventId, bool hasFocus,
+                                           bool inTouchMode) {
     if (ATRACE_ENABLED()) {
         std::string message =
                 StringPrintf("publishFocusEvent(inputChannel=%s, hasFocus=%s, inTouchMode=%s)",
@@ -561,6 +566,7 @@
     InputMessage msg;
     msg.header.type = InputMessage::Type::FOCUS;
     msg.body.focus.seq = seq;
+    msg.body.focus.eventId = eventId;
     msg.body.focus.hasFocus = hasFocus ? 1 : 0;
     msg.body.focus.inTouchMode = inTouchMode ? 1 : 0;
     return mChannel->sendMessage(&msg);
@@ -1146,7 +1152,7 @@
 }
 
 void InputConsumer::initializeKeyEvent(KeyEvent* event, const InputMessage* msg) {
-    event->initialize(INPUT_FLINGER_SEQUENCE_NUM, msg->body.key.deviceId, msg->body.key.source,
+    event->initialize(msg->body.key.eventId, msg->body.key.deviceId, msg->body.key.source,
                       msg->body.key.displayId, msg->body.key.hmac, msg->body.key.action,
                       msg->body.key.flags, msg->body.key.keyCode, msg->body.key.scanCode,
                       msg->body.key.metaState, msg->body.key.repeatCount, msg->body.key.downTime,
@@ -1154,7 +1160,7 @@
 }
 
 void InputConsumer::initializeFocusEvent(FocusEvent* event, const InputMessage* msg) {
-    event->initialize(INPUT_FLINGER_SEQUENCE_NUM, msg->body.focus.hasFocus == 1,
+    event->initialize(msg->body.focus.eventId, msg->body.focus.hasFocus == 1,
                       msg->body.focus.inTouchMode == 1);
 }
 
@@ -1167,17 +1173,16 @@
         pointerCoords[i].copyFrom(msg->body.motion.pointers[i].coords);
     }
 
-    event->initialize(INPUT_FLINGER_SEQUENCE_NUM, msg->body.motion.deviceId,
-                      msg->body.motion.source, msg->body.motion.displayId, msg->body.motion.hmac,
-                      msg->body.motion.action, msg->body.motion.actionButton,
-                      msg->body.motion.flags, msg->body.motion.edgeFlags,
-                      msg->body.motion.metaState, msg->body.motion.buttonState,
-                      msg->body.motion.classification, msg->body.motion.xScale,
-                      msg->body.motion.yScale, msg->body.motion.xOffset, msg->body.motion.yOffset,
-                      msg->body.motion.xPrecision, msg->body.motion.yPrecision,
-                      msg->body.motion.xCursorPosition, msg->body.motion.yCursorPosition,
-                      msg->body.motion.downTime, msg->body.motion.eventTime, pointerCount,
-                      pointerProperties, pointerCoords);
+    event->initialize(msg->body.motion.eventId, msg->body.motion.deviceId, msg->body.motion.source,
+                      msg->body.motion.displayId, msg->body.motion.hmac, msg->body.motion.action,
+                      msg->body.motion.actionButton, msg->body.motion.flags,
+                      msg->body.motion.edgeFlags, msg->body.motion.metaState,
+                      msg->body.motion.buttonState, msg->body.motion.classification,
+                      msg->body.motion.xScale, msg->body.motion.yScale, msg->body.motion.xOffset,
+                      msg->body.motion.yOffset, msg->body.motion.xPrecision,
+                      msg->body.motion.yPrecision, msg->body.motion.xCursorPosition,
+                      msg->body.motion.yCursorPosition, msg->body.motion.downTime,
+                      msg->body.motion.eventTime, pointerCount, pointerProperties, pointerCoords);
 }
 
 void InputConsumer::addSample(MotionEvent* event, const InputMessage* msg) {
diff --git a/libs/input/tests/InputPublisherAndConsumer_test.cpp b/libs/input/tests/InputPublisherAndConsumer_test.cpp
index 885196f..8e2eec8 100644
--- a/libs/input/tests/InputPublisherAndConsumer_test.cpp
+++ b/libs/input/tests/InputPublisherAndConsumer_test.cpp
@@ -73,6 +73,7 @@
     status_t status;
 
     constexpr uint32_t seq = 15;
+    int32_t eventId = InputEvent::nextId();
     constexpr int32_t deviceId = 1;
     constexpr uint32_t source = AINPUT_SOURCE_KEYBOARD;
     constexpr int32_t displayId = ADISPLAY_ID_DEFAULT;
@@ -88,8 +89,8 @@
     constexpr nsecs_t downTime = 3;
     constexpr nsecs_t eventTime = 4;
 
-    status = mPublisher->publishKeyEvent(seq, deviceId, source, displayId, hmac, action, flags,
-                                         keyCode, scanCode, metaState, repeatCount, downTime,
+    status = mPublisher->publishKeyEvent(seq, eventId, deviceId, source, displayId, hmac, action,
+                                         flags, keyCode, scanCode, metaState, repeatCount, downTime,
                                          eventTime);
     ASSERT_EQ(OK, status)
             << "publisher publishKeyEvent should return OK";
@@ -107,6 +108,7 @@
 
     KeyEvent* keyEvent = static_cast<KeyEvent*>(event);
     EXPECT_EQ(seq, consumeSeq);
+    EXPECT_EQ(eventId, keyEvent->getId());
     EXPECT_EQ(deviceId, keyEvent->getDeviceId());
     EXPECT_EQ(source, keyEvent->getSource());
     EXPECT_EQ(displayId, keyEvent->getDisplayId());
@@ -139,6 +141,7 @@
     status_t status;
 
     constexpr uint32_t seq = 15;
+    int32_t eventId = InputEvent::nextId();
     constexpr int32_t deviceId = 1;
     constexpr uint32_t source = AINPUT_SOURCE_TOUCHSCREEN;
     constexpr int32_t displayId = ADISPLAY_ID_DEFAULT;
@@ -182,7 +185,7 @@
         pointerCoords[i].setAxisValue(AMOTION_EVENT_AXIS_ORIENTATION, 3.5 * i);
     }
 
-    status = mPublisher->publishMotionEvent(seq, deviceId, source, displayId, hmac, action,
+    status = mPublisher->publishMotionEvent(seq, eventId, deviceId, source, displayId, hmac, action,
                                             actionButton, flags, edgeFlags, metaState, buttonState,
                                             classification, xScale, yScale, xOffset, yOffset,
                                             xPrecision, yPrecision, xCursorPosition,
@@ -204,6 +207,7 @@
 
     MotionEvent* motionEvent = static_cast<MotionEvent*>(event);
     EXPECT_EQ(seq, consumeSeq);
+    EXPECT_EQ(eventId, motionEvent->getId());
     EXPECT_EQ(deviceId, motionEvent->getDeviceId());
     EXPECT_EQ(source, motionEvent->getSource());
     EXPECT_EQ(displayId, motionEvent->getDisplayId());
@@ -277,10 +281,11 @@
     status_t status;
 
     constexpr uint32_t seq = 15;
+    int32_t eventId = InputEvent::nextId();
     constexpr bool hasFocus = true;
     constexpr bool inTouchMode = true;
 
-    status = mPublisher->publishFocusEvent(seq, hasFocus, inTouchMode);
+    status = mPublisher->publishFocusEvent(seq, eventId, hasFocus, inTouchMode);
     ASSERT_EQ(OK, status) << "publisher publishKeyEvent should return OK";
 
     uint32_t consumeSeq;
@@ -294,6 +299,7 @@
 
     FocusEvent* focusEvent = static_cast<FocusEvent*>(event);
     EXPECT_EQ(seq, consumeSeq);
+    EXPECT_EQ(eventId, focusEvent->getId());
     EXPECT_EQ(hasFocus, focusEvent->getHasFocus());
     EXPECT_EQ(inTouchMode, focusEvent->getInTouchMode());
 
@@ -332,8 +338,8 @@
         pointerCoords[i].clear();
     }
 
-    status = mPublisher->publishMotionEvent(0, 0, 0, 0, INVALID_HMAC, 0, 0, 0, 0, 0, 0,
-                                            MotionClassification::NONE, 1 /* xScale */,
+    status = mPublisher->publishMotionEvent(0, InputEvent::nextId(), 0, 0, 0, INVALID_HMAC, 0, 0, 0,
+                                            0, 0, 0, MotionClassification::NONE, 1 /* xScale */,
                                             1 /* yScale */, 0, 0, 0, 0,
                                             AMOTION_EVENT_INVALID_CURSOR_POSITION,
                                             AMOTION_EVENT_INVALID_CURSOR_POSITION, 0, 0,
@@ -348,8 +354,8 @@
     PointerProperties pointerProperties[pointerCount];
     PointerCoords pointerCoords[pointerCount];
 
-    status = mPublisher->publishMotionEvent(1, 0, 0, 0, INVALID_HMAC, 0, 0, 0, 0, 0, 0,
-                                            MotionClassification::NONE, 1 /* xScale */,
+    status = mPublisher->publishMotionEvent(1, InputEvent::nextId(), 0, 0, 0, INVALID_HMAC, 0, 0, 0,
+                                            0, 0, 0, MotionClassification::NONE, 1 /* xScale */,
                                             1 /* yScale */, 0, 0, 0, 0,
                                             AMOTION_EVENT_INVALID_CURSOR_POSITION,
                                             AMOTION_EVENT_INVALID_CURSOR_POSITION, 0, 0,
@@ -369,8 +375,8 @@
         pointerCoords[i].clear();
     }
 
-    status = mPublisher->publishMotionEvent(1, 0, 0, 0, INVALID_HMAC, 0, 0, 0, 0, 0, 0,
-                                            MotionClassification::NONE, 1 /* xScale */,
+    status = mPublisher->publishMotionEvent(1, InputEvent::nextId(), 0, 0, 0, INVALID_HMAC, 0, 0, 0,
+                                            0, 0, 0, MotionClassification::NONE, 1 /* xScale */,
                                             1 /* yScale */, 0, 0, 0, 0,
                                             AMOTION_EVENT_INVALID_CURSOR_POSITION,
                                             AMOTION_EVENT_INVALID_CURSOR_POSITION, 0, 0,
diff --git a/libs/input/tests/StructLayout_test.cpp b/libs/input/tests/StructLayout_test.cpp
index dd127fc..1fe7bb9 100644
--- a/libs/input/tests/StructLayout_test.cpp
+++ b/libs/input/tests/StructLayout_test.cpp
@@ -35,6 +35,7 @@
   CHECK_OFFSET(InputMessage, body, 8);
 
   CHECK_OFFSET(InputMessage::Body::Key, seq, 0);
+  CHECK_OFFSET(InputMessage::Body::Key, eventId, 4);
   CHECK_OFFSET(InputMessage::Body::Key, eventTime, 8);
   CHECK_OFFSET(InputMessage::Body::Key, deviceId, 16);
   CHECK_OFFSET(InputMessage::Body::Key, source, 20);
@@ -49,6 +50,7 @@
   CHECK_OFFSET(InputMessage::Body::Key, downTime, 88);
 
   CHECK_OFFSET(InputMessage::Body::Motion, seq, 0);
+  CHECK_OFFSET(InputMessage::Body::Motion, eventId, 4);
   CHECK_OFFSET(InputMessage::Body::Motion, eventTime, 8);
   CHECK_OFFSET(InputMessage::Body::Motion, deviceId, 16);
   CHECK_OFFSET(InputMessage::Body::Motion, source, 20);
@@ -74,8 +76,9 @@
   CHECK_OFFSET(InputMessage::Body::Motion, pointers, 136);
 
   CHECK_OFFSET(InputMessage::Body::Focus, seq, 0);
-  CHECK_OFFSET(InputMessage::Body::Focus, hasFocus, 4);
-  CHECK_OFFSET(InputMessage::Body::Focus, inTouchMode, 6);
+  CHECK_OFFSET(InputMessage::Body::Focus, eventId, 4);
+  CHECK_OFFSET(InputMessage::Body::Focus, hasFocus, 12);
+  CHECK_OFFSET(InputMessage::Body::Focus, inTouchMode, 14);
 
   CHECK_OFFSET(InputMessage::Body::Finished, seq, 0);
   CHECK_OFFSET(InputMessage::Body::Finished, handled, 4);
@@ -95,7 +98,7 @@
                   offsetof(InputMessage::Body::Motion, pointers) +
                           sizeof(InputMessage::Body::Motion::Pointer) * MAX_POINTERS);
     static_assert(sizeof(InputMessage::Body::Finished) == 8);
-    static_assert(sizeof(InputMessage::Body::Focus) == 8);
+    static_assert(sizeof(InputMessage::Body::Focus) == 16);
 }
 
 // --- VerifiedInputEvent ---