diff --git a/include/android/input.h b/include/android/input.h
index fec56f0..ee98d7a 100644
--- a/include/android/input.h
+++ b/include/android/input.h
@@ -1002,7 +1002,6 @@
  * Keyboard types.
  *
  * Refer to the documentation on android.view.InputDevice for more details.
- * Note: When adding a new keyboard type here InputDeviceInfo::setKeyboardType needs to be updated.
  */
 enum {
     /** none */
diff --git a/include/input/Input.h b/include/input/Input.h
index 3ca9c19..dee3e7d 100644
--- a/include/input/Input.h
+++ b/include/input/Input.h
@@ -258,6 +258,16 @@
     ftl_last = VIRTUAL,
 };
 
+/**
+ * The keyboard type. This should have 1:1 correspondence with the values of anonymous enum
+ * defined in input.h
+ */
+enum class KeyboardType {
+    NONE = AINPUT_KEYBOARD_TYPE_NONE,
+    NON_ALPHABETIC = AINPUT_KEYBOARD_TYPE_NON_ALPHABETIC,
+    ALPHABETIC = AINPUT_KEYBOARD_TYPE_ALPHABETIC,
+};
+
 bool isStylusToolType(ToolType toolType);
 
 struct PointerProperties;
diff --git a/include/input/KeyboardClassifier.h b/include/input/KeyboardClassifier.h
new file mode 100644
index 0000000..457d474
--- /dev/null
+++ b/include/input/KeyboardClassifier.h
@@ -0,0 +1,53 @@
+/*
+ * Copyright 2024 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.
+ */
+
+#pragma once
+
+#include <android-base/result.h>
+#include <input/Input.h>
+#include <input/InputDevice.h>
+
+#include "rust/cxx.h"
+
+namespace android {
+
+namespace input {
+namespace keyboardClassifier {
+struct KeyboardClassifier;
+}
+} // namespace input
+
+/*
+ * Keyboard classifier to classify keyboard into alphabetic and non-alphabetic keyboards
+ */
+class KeyboardClassifier {
+public:
+    KeyboardClassifier();
+    /**
+     * Get the type of keyboard that the classifier currently believes the device to be.
+     */
+    KeyboardType getKeyboardType(DeviceId deviceId);
+    void notifyKeyboardChanged(DeviceId deviceId, const InputDeviceIdentifier& identifier,
+                               uint32_t deviceClasses);
+    void processKey(DeviceId deviceId, int32_t evdevCode, uint32_t metaState);
+
+private:
+    std::optional<rust::Box<android::input::keyboardClassifier::KeyboardClassifier>>
+            mRustClassifier;
+    std::unordered_map<DeviceId, KeyboardType> mKeyboardTypeMap;
+};
+
+} // namespace android
diff --git a/libs/input/Android.bp b/libs/input/Android.bp
index 8f44b3a..4123ffc 100644
--- a/libs/input/Android.bp
+++ b/libs/input/Android.bp
@@ -117,6 +117,27 @@
         "--allowlist-var=AINPUT_SOURCE_HDMI",
         "--allowlist-var=AINPUT_SOURCE_SENSOR",
         "--allowlist-var=AINPUT_SOURCE_ROTARY_ENCODER",
+        "--allowlist-var=AINPUT_KEYBOARD_TYPE_NONE",
+        "--allowlist-var=AINPUT_KEYBOARD_TYPE_NON_ALPHABETIC",
+        "--allowlist-var=AINPUT_KEYBOARD_TYPE_ALPHABETIC",
+        "--allowlist-var=AMETA_NONE",
+        "--allowlist-var=AMETA_ALT_ON",
+        "--allowlist-var=AMETA_ALT_LEFT_ON",
+        "--allowlist-var=AMETA_ALT_RIGHT_ON",
+        "--allowlist-var=AMETA_SHIFT_ON",
+        "--allowlist-var=AMETA_SHIFT_LEFT_ON",
+        "--allowlist-var=AMETA_SHIFT_RIGHT_ON",
+        "--allowlist-var=AMETA_SYM_ON",
+        "--allowlist-var=AMETA_FUNCTION_ON",
+        "--allowlist-var=AMETA_CTRL_ON",
+        "--allowlist-var=AMETA_CTRL_LEFT_ON",
+        "--allowlist-var=AMETA_CTRL_RIGHT_ON",
+        "--allowlist-var=AMETA_META_ON",
+        "--allowlist-var=AMETA_META_LEFT_ON",
+        "--allowlist-var=AMETA_META_RIGHT_ON",
+        "--allowlist-var=AMETA_CAPS_LOCK_ON",
+        "--allowlist-var=AMETA_NUM_LOCK_ON",
+        "--allowlist-var=AMETA_SCROLL_LOCK_ON",
     ],
 
     static_libs: [
@@ -208,6 +229,7 @@
         "InputVerifier.cpp",
         "Keyboard.cpp",
         "KeyCharacterMap.cpp",
+        "KeyboardClassifier.cpp",
         "KeyLayoutMap.cpp",
         "MotionPredictor.cpp",
         "MotionPredictorMetricsManager.cpp",
diff --git a/libs/input/InputDevice.cpp b/libs/input/InputDevice.cpp
index bc67810..9333ab8 100644
--- a/libs/input/InputDevice.cpp
+++ b/libs/input/InputDevice.cpp
@@ -273,10 +273,7 @@
 }
 
 void InputDeviceInfo::setKeyboardType(int32_t keyboardType) {
-    static_assert(AINPUT_KEYBOARD_TYPE_NONE < AINPUT_KEYBOARD_TYPE_NON_ALPHABETIC);
-    static_assert(AINPUT_KEYBOARD_TYPE_NON_ALPHABETIC < AINPUT_KEYBOARD_TYPE_ALPHABETIC);
-    // There can be multiple subdevices with different keyboard types, set it to the highest type
-    mKeyboardType = std::max(mKeyboardType, keyboardType);
+    mKeyboardType = keyboardType;
 }
 
 void InputDeviceInfo::setKeyboardLayoutInfo(KeyboardLayoutInfo layoutInfo) {
diff --git a/libs/input/KeyboardClassifier.cpp b/libs/input/KeyboardClassifier.cpp
new file mode 100644
index 0000000..0c2c7be
--- /dev/null
+++ b/libs/input/KeyboardClassifier.cpp
@@ -0,0 +1,89 @@
+/*
+ * Copyright 2024 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.
+ */
+
+#define LOG_TAG "KeyboardClassifier"
+
+#include <android-base/logging.h>
+#include <com_android_input_flags.h>
+#include <ftl/flags.h>
+#include <input/KeyboardClassifier.h>
+
+#include "input_cxx_bridge.rs.h"
+
+namespace input_flags = com::android::input::flags;
+
+using android::input::RustInputDeviceIdentifier;
+
+namespace android {
+
+KeyboardClassifier::KeyboardClassifier() {
+    if (input_flags::enable_keyboard_classifier()) {
+        mRustClassifier = android::input::keyboardClassifier::create();
+    }
+}
+
+KeyboardType KeyboardClassifier::getKeyboardType(DeviceId deviceId) {
+    if (mRustClassifier) {
+        return static_cast<KeyboardType>(
+                android::input::keyboardClassifier::getKeyboardType(**mRustClassifier, deviceId));
+    } else {
+        auto it = mKeyboardTypeMap.find(deviceId);
+        if (it == mKeyboardTypeMap.end()) {
+            return KeyboardType::NONE;
+        }
+        return it->second;
+    }
+}
+
+// Copied from EventHub.h
+const uint32_t DEVICE_CLASS_KEYBOARD = android::os::IInputConstants::DEVICE_CLASS_KEYBOARD;
+const uint32_t DEVICE_CLASS_ALPHAKEY = android::os::IInputConstants::DEVICE_CLASS_ALPHAKEY;
+
+void KeyboardClassifier::notifyKeyboardChanged(DeviceId deviceId,
+                                               const InputDeviceIdentifier& identifier,
+                                               uint32_t deviceClasses) {
+    if (mRustClassifier) {
+        RustInputDeviceIdentifier rustIdentifier;
+        rustIdentifier.name = identifier.name;
+        rustIdentifier.location = identifier.location;
+        rustIdentifier.unique_id = identifier.uniqueId;
+        rustIdentifier.bus = identifier.bus;
+        rustIdentifier.vendor = identifier.vendor;
+        rustIdentifier.product = identifier.product;
+        rustIdentifier.version = identifier.version;
+        rustIdentifier.descriptor = identifier.descriptor;
+        android::input::keyboardClassifier::notifyKeyboardChanged(**mRustClassifier, deviceId,
+                                                                  rustIdentifier, deviceClasses);
+    } else {
+        bool isKeyboard = (deviceClasses & DEVICE_CLASS_KEYBOARD) != 0;
+        bool hasAlphabeticKey = (deviceClasses & DEVICE_CLASS_ALPHAKEY) != 0;
+        mKeyboardTypeMap.insert_or_assign(deviceId,
+                                          isKeyboard ? (hasAlphabeticKey
+                                                                ? KeyboardType::ALPHABETIC
+                                                                : KeyboardType::NON_ALPHABETIC)
+                                                     : KeyboardType::NONE);
+    }
+}
+
+void KeyboardClassifier::processKey(DeviceId deviceId, int32_t evdevCode, uint32_t metaState) {
+    if (mRustClassifier &&
+        !android::input::keyboardClassifier::isFinalized(**mRustClassifier, deviceId)) {
+        android::input::keyboardClassifier::processKey(**mRustClassifier, deviceId, evdevCode,
+                                                       metaState);
+    }
+}
+
+} // namespace android
diff --git a/libs/input/android/os/IInputConstants.aidl b/libs/input/android/os/IInputConstants.aidl
index 90ed2b7..e8746d0 100644
--- a/libs/input/android/os/IInputConstants.aidl
+++ b/libs/input/android/os/IInputConstants.aidl
@@ -234,4 +234,157 @@
      * time to adjust to changes in direction.
      */
     const int VELOCITY_TRACKER_STRATEGY_LEGACY = 9;
+
+
+    /*
+     * Input device class: Keyboard
+     * The input device is a keyboard or has buttons.
+     *
+     * @hide
+     */
+    const int DEVICE_CLASS_KEYBOARD = 0x00000001;
+
+    /*
+     * Input device class: Alphakey
+     * The input device is an alpha-numeric keyboard (not just a dial pad).
+     *
+     * @hide
+     */
+    const int DEVICE_CLASS_ALPHAKEY = 0x00000002;
+
+    /*
+     * Input device class: Touch
+     * The input device is a touchscreen or a touchpad (either single-touch or multi-touch).
+     *
+     * @hide
+     */
+    const int DEVICE_CLASS_TOUCH = 0x00000004;
+
+    /*
+     * Input device class: Cursor
+     * The input device is a cursor device such as a trackball or mouse.
+     *
+     * @hide
+     */
+    const int DEVICE_CLASS_CURSOR = 0x00000008;
+
+    /*
+     * Input device class: Multi-touch
+     * The input device is a multi-touch touchscreen or touchpad.
+     *
+     * @hide
+     */
+    const int DEVICE_CLASS_TOUCH_MT = 0x00000010;
+
+    /*
+     * Input device class: Dpad
+     * The input device is a directional pad (implies keyboard, has DPAD keys).
+     *
+     * @hide
+     */
+    const int DEVICE_CLASS_DPAD = 0x00000020;
+
+    /*
+     * Input device class: Gamepad
+     * The input device is a gamepad (implies keyboard, has BUTTON keys).
+     *
+     * @hide
+     */
+    const int DEVICE_CLASS_GAMEPAD = 0x00000040;
+
+    /*
+     * Input device class: Switch
+     * The input device has switches.
+     *
+     * @hide
+     */
+    const int DEVICE_CLASS_SWITCH = 0x00000080;
+
+    /*
+     * Input device class: Joystick
+     * The input device is a joystick (implies gamepad, has joystick absolute axes).
+     *
+     * @hide
+     */
+    const int DEVICE_CLASS_JOYSTICK = 0x00000100;
+
+    /*
+     * Input device class: Vibrator
+     * The input device has a vibrator (supports FF_RUMBLE).
+     *
+     * @hide
+     */
+    const int DEVICE_CLASS_VIBRATOR = 0x00000200;
+
+    /*
+     * Input device class: Mic
+     * The input device has a microphone.
+     *
+     * @hide
+     */
+    const int DEVICE_CLASS_MIC = 0x00000400;
+
+    /*
+     * Input device class: External Stylus
+     * The input device is an external stylus (has data we want to fuse with touch data).
+     *
+     * @hide
+     */
+    const int DEVICE_CLASS_EXTERNAL_STYLUS = 0x00000800;
+
+    /*
+     * Input device class: Rotary Encoder
+     * The input device has a rotary encoder.
+     *
+     * @hide
+     */
+    const int DEVICE_CLASS_ROTARY_ENCODER = 0x00001000;
+
+    /*
+     * Input device class: Sensor
+     * The input device has a sensor like accelerometer, gyro, etc.
+     *
+     * @hide
+     */
+    const int DEVICE_CLASS_SENSOR = 0x00002000;
+
+    /*
+     * Input device class: Battery
+     * The input device has a battery.
+     *
+     * @hide
+     */
+    const int DEVICE_CLASS_BATTERY = 0x00004000;
+
+    /*
+     * Input device class: Light
+     * The input device has sysfs controllable lights.
+     *
+     * @hide
+     */
+    const int DEVICE_CLASS_LIGHT = 0x00008000;
+
+    /*
+     * Input device class: Touchpad
+     * The input device is a touchpad, requiring an on-screen cursor.
+     *
+     * @hide
+     */
+    const int DEVICE_CLASS_TOUCHPAD = 0x00010000;
+
+    /*
+     * Input device class: Virtual
+     * The input device is virtual (not a real device, not part of UI configuration).
+     *
+     * @hide
+     */
+    const int DEVICE_CLASS_VIRTUAL = 0x20000000;
+
+    /*
+     * Input device class: External
+     * The input device is external (not built-in).
+     *
+     * @hide
+     */
+    const int DEVICE_CLASS_EXTERNAL = 0x40000000;
 }
diff --git a/libs/input/input_flags.aconfig b/libs/input/input_flags.aconfig
index 560166c..a2192cb 100644
--- a/libs/input/input_flags.aconfig
+++ b/libs/input/input_flags.aconfig
@@ -150,3 +150,10 @@
   description: "Hide touch and pointer indicators if a secure window is present on display"
   bug: "325252005"
 }
+
+flag {
+  name: "enable_keyboard_classifier"
+  namespace: "input"
+  description: "Keyboard classifier that classifies all keyboards into alphabetic or non-alphabetic"
+  bug: "263559234"
+}
diff --git a/libs/input/rust/input.rs b/libs/input/rust/input.rs
index d0dbd6f..72b421c 100644
--- a/libs/input/rust/input.rs
+++ b/libs/input/rust/input.rs
@@ -16,22 +16,26 @@
 
 //! Common definitions of the Android Input Framework in rust.
 
+use crate::ffi::RustInputDeviceIdentifier;
 use bitflags::bitflags;
-use inputconstants::aidl::android::os::IInputConstants::INPUT_EVENT_FLAG_CANCELED;
-use inputconstants::aidl::android::os::IInputConstants::INPUT_EVENT_FLAG_IS_ACCESSIBILITY_EVENT;
-use inputconstants::aidl::android::os::IInputConstants::INPUT_EVENT_FLAG_TAINTED;
-use inputconstants::aidl::android::os::IInputConstants::MOTION_EVENT_FLAG_HOVER_EXIT_PENDING;
-use inputconstants::aidl::android::os::IInputConstants::MOTION_EVENT_FLAG_IS_GENERATED_GESTURE;
-use inputconstants::aidl::android::os::IInputConstants::MOTION_EVENT_FLAG_NO_FOCUS_CHANGE;
-use inputconstants::aidl::android::os::IInputConstants::MOTION_EVENT_FLAG_TARGET_ACCESSIBILITY_FOCUS;
-use inputconstants::aidl::android::os::IInputConstants::MOTION_EVENT_FLAG_WINDOW_IS_OBSCURED;
-use inputconstants::aidl::android::os::IInputConstants::MOTION_EVENT_FLAG_WINDOW_IS_PARTIALLY_OBSCURED;
+use inputconstants::aidl::android::os::IInputConstants;
 use std::fmt;
 
 /// The InputDevice ID.
 #[derive(Debug, Copy, Clone, Eq, PartialEq, Ord, PartialOrd, Hash)]
 pub struct DeviceId(pub i32);
 
+/// The InputDevice equivalent for Rust inputflinger
+#[derive(Debug)]
+pub struct InputDevice {
+    /// InputDevice ID
+    pub device_id: DeviceId,
+    /// InputDevice unique identifier
+    pub identifier: RustInputDeviceIdentifier,
+    /// InputDevice classes (equivalent to EventHub InputDeviceClass)
+    pub classes: DeviceClass,
+}
+
 #[repr(u32)]
 pub enum SourceClass {
     None = input_bindgen::AINPUT_SOURCE_CLASS_NONE,
@@ -192,23 +196,23 @@
     #[derive(Debug)]
     pub struct MotionFlags: u32 {
         /// FLAG_WINDOW_IS_OBSCURED
-        const WINDOW_IS_OBSCURED = MOTION_EVENT_FLAG_WINDOW_IS_OBSCURED as u32;
+        const WINDOW_IS_OBSCURED = IInputConstants::MOTION_EVENT_FLAG_WINDOW_IS_OBSCURED as u32;
         /// FLAG_WINDOW_IS_PARTIALLY_OBSCURED
-        const WINDOW_IS_PARTIALLY_OBSCURED = MOTION_EVENT_FLAG_WINDOW_IS_PARTIALLY_OBSCURED as u32;
+        const WINDOW_IS_PARTIALLY_OBSCURED = IInputConstants::MOTION_EVENT_FLAG_WINDOW_IS_PARTIALLY_OBSCURED as u32;
         /// FLAG_HOVER_EXIT_PENDING
-        const HOVER_EXIT_PENDING = MOTION_EVENT_FLAG_HOVER_EXIT_PENDING as u32;
+        const HOVER_EXIT_PENDING = IInputConstants::MOTION_EVENT_FLAG_HOVER_EXIT_PENDING as u32;
         /// FLAG_IS_GENERATED_GESTURE
-        const IS_GENERATED_GESTURE = MOTION_EVENT_FLAG_IS_GENERATED_GESTURE as u32;
+        const IS_GENERATED_GESTURE = IInputConstants::MOTION_EVENT_FLAG_IS_GENERATED_GESTURE as u32;
         /// FLAG_CANCELED
-        const CANCELED = INPUT_EVENT_FLAG_CANCELED as u32;
+        const CANCELED = IInputConstants::INPUT_EVENT_FLAG_CANCELED as u32;
         /// FLAG_NO_FOCUS_CHANGE
-        const NO_FOCUS_CHANGE = MOTION_EVENT_FLAG_NO_FOCUS_CHANGE as u32;
+        const NO_FOCUS_CHANGE = IInputConstants::MOTION_EVENT_FLAG_NO_FOCUS_CHANGE as u32;
         /// FLAG_IS_ACCESSIBILITY_EVENT
-        const IS_ACCESSIBILITY_EVENT = INPUT_EVENT_FLAG_IS_ACCESSIBILITY_EVENT as u32;
+        const IS_ACCESSIBILITY_EVENT = IInputConstants::INPUT_EVENT_FLAG_IS_ACCESSIBILITY_EVENT as u32;
         /// FLAG_TAINTED
-        const TAINTED = INPUT_EVENT_FLAG_TAINTED as u32;
+        const TAINTED = IInputConstants::INPUT_EVENT_FLAG_TAINTED as u32;
         /// FLAG_TARGET_ACCESSIBILITY_FOCUS
-        const TARGET_ACCESSIBILITY_FOCUS = MOTION_EVENT_FLAG_TARGET_ACCESSIBILITY_FOCUS as u32;
+        const TARGET_ACCESSIBILITY_FOCUS = IInputConstants::MOTION_EVENT_FLAG_TARGET_ACCESSIBILITY_FOCUS as u32;
     }
 }
 
@@ -220,6 +224,107 @@
     }
 }
 
+bitflags! {
+    /// Device class of the input device. These are duplicated from Eventhub.h
+    /// We need to make sure the two version remain in sync when adding new classes.
+    #[derive(Debug, PartialEq)]
+    pub struct DeviceClass: u32 {
+        /// The input device is a keyboard or has buttons
+        const Keyboard = IInputConstants::DEVICE_CLASS_KEYBOARD as u32;
+        /// The input device is an alpha-numeric keyboard (not just a dial pad)
+        const AlphabeticKey = IInputConstants::DEVICE_CLASS_ALPHAKEY as u32;
+        /// The input device is a touchscreen or a touchpad (either single-touch or multi-touch)
+        const Touch = IInputConstants::DEVICE_CLASS_TOUCH as u32;
+        /// The input device is a cursor device such as a trackball or mouse.
+        const Cursor = IInputConstants::DEVICE_CLASS_CURSOR as u32;
+        /// The input device is a multi-touch touchscreen or touchpad.
+        const MultiTouch = IInputConstants::DEVICE_CLASS_TOUCH_MT as u32;
+        /// The input device is a directional pad (implies keyboard, has DPAD keys).
+        const Dpad = IInputConstants::DEVICE_CLASS_DPAD as u32;
+        /// The input device is a gamepad (implies keyboard, has BUTTON keys).
+        const Gamepad = IInputConstants::DEVICE_CLASS_GAMEPAD as u32;
+        /// The input device has switches.
+        const Switch = IInputConstants::DEVICE_CLASS_SWITCH as u32;
+        /// The input device is a joystick (implies gamepad, has joystick absolute axes).
+        const Joystick = IInputConstants::DEVICE_CLASS_JOYSTICK as u32;
+        /// The input device has a vibrator (supports FF_RUMBLE).
+        const Vibrator = IInputConstants::DEVICE_CLASS_VIBRATOR as u32;
+        /// The input device has a microphone.
+        const Mic = IInputConstants::DEVICE_CLASS_MIC as u32;
+        /// The input device is an external stylus (has data we want to fuse with touch data).
+        const ExternalStylus = IInputConstants::DEVICE_CLASS_EXTERNAL_STYLUS as u32;
+        /// The input device has a rotary encoder
+        const RotaryEncoder = IInputConstants::DEVICE_CLASS_ROTARY_ENCODER as u32;
+        /// The input device has a sensor like accelerometer, gyro, etc
+        const Sensor = IInputConstants::DEVICE_CLASS_SENSOR as u32;
+        /// The input device has a battery
+        const Battery = IInputConstants::DEVICE_CLASS_BATTERY as u32;
+        /// The input device has sysfs controllable lights
+        const Light = IInputConstants::DEVICE_CLASS_LIGHT as u32;
+        /// The input device is a touchpad, requiring an on-screen cursor.
+        const Touchpad = IInputConstants::DEVICE_CLASS_TOUCHPAD as u32;
+        /// The input device is virtual (not a real device, not part of UI configuration).
+        const Virtual = IInputConstants::DEVICE_CLASS_VIRTUAL as u32;
+        /// The input device is external (not built-in).
+        const External = IInputConstants::DEVICE_CLASS_EXTERNAL as u32;
+    }
+}
+
+bitflags! {
+    /// Modifier state flags
+    #[derive(Debug, PartialEq)]
+    pub struct ModifierState: u32 {
+        /// No meta keys are pressed
+        const None = input_bindgen::AMETA_NONE;
+        /// This mask is used to check whether one of the ALT meta keys is pressed
+        const AltOn = input_bindgen::AMETA_ALT_ON;
+        /// This mask is used to check whether the left ALT meta key is pressed
+        const AltLeftOn = input_bindgen::AMETA_ALT_LEFT_ON;
+        /// This mask is used to check whether the right ALT meta key is pressed
+        const AltRightOn = input_bindgen::AMETA_ALT_RIGHT_ON;
+        /// This mask is used to check whether one of the SHIFT meta keys is pressed
+        const ShiftOn = input_bindgen::AMETA_SHIFT_ON;
+        /// This mask is used to check whether the left SHIFT meta key is pressed
+        const ShiftLeftOn = input_bindgen::AMETA_SHIFT_LEFT_ON;
+        /// This mask is used to check whether the right SHIFT meta key is pressed
+        const ShiftRightOn = input_bindgen::AMETA_SHIFT_RIGHT_ON;
+        /// This mask is used to check whether the SYM meta key is pressed
+        const SymOn = input_bindgen::AMETA_SYM_ON;
+        /// This mask is used to check whether the FUNCTION meta key is pressed
+        const FunctionOn = input_bindgen::AMETA_FUNCTION_ON;
+        /// This mask is used to check whether one of the CTRL meta keys is pressed
+        const CtrlOn = input_bindgen::AMETA_CTRL_ON;
+        /// This mask is used to check whether the left CTRL meta key is pressed
+        const CtrlLeftOn = input_bindgen::AMETA_CTRL_LEFT_ON;
+        /// This mask is used to check whether the right CTRL meta key is pressed
+        const CtrlRightOn = input_bindgen::AMETA_CTRL_RIGHT_ON;
+        /// This mask is used to check whether one of the META meta keys is pressed
+        const MetaOn = input_bindgen::AMETA_META_ON;
+        /// This mask is used to check whether the left META meta key is pressed
+        const MetaLeftOn = input_bindgen::AMETA_META_LEFT_ON;
+        /// This mask is used to check whether the right META meta key is pressed
+        const MetaRightOn = input_bindgen::AMETA_META_RIGHT_ON;
+        /// This mask is used to check whether the CAPS LOCK meta key is on
+        const CapsLockOn = input_bindgen::AMETA_CAPS_LOCK_ON;
+        /// This mask is used to check whether the NUM LOCK meta key is on
+        const NumLockOn = input_bindgen::AMETA_NUM_LOCK_ON;
+        /// This mask is used to check whether the SCROLL LOCK meta key is on
+        const ScrollLockOn = input_bindgen::AMETA_SCROLL_LOCK_ON;
+    }
+}
+
+/// A rust enum representation of a Keyboard type.
+#[repr(u32)]
+#[derive(Debug, Copy, Clone, Eq, PartialEq)]
+pub enum KeyboardType {
+    /// KEYBOARD_TYPE_NONE
+    None = input_bindgen::AINPUT_KEYBOARD_TYPE_NONE,
+    /// KEYBOARD_TYPE_NON_ALPHABETIC
+    NonAlphabetic = input_bindgen::AINPUT_KEYBOARD_TYPE_NON_ALPHABETIC,
+    /// KEYBOARD_TYPE_ALPHABETIC
+    Alphabetic = input_bindgen::AINPUT_KEYBOARD_TYPE_ALPHABETIC,
+}
+
 #[cfg(test)]
 mod tests {
     use crate::input::SourceClass;
diff --git a/libs/input/rust/keyboard_classifier.rs b/libs/input/rust/keyboard_classifier.rs
new file mode 100644
index 0000000..bd3a51c
--- /dev/null
+++ b/libs/input/rust/keyboard_classifier.rs
@@ -0,0 +1,62 @@
+/*
+ * Copyright 2024 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.
+ */
+
+//! Contains the KeyboardClassifier, that tries to identify whether an Input device is an
+//! alphabetic or non-alphabetic keyboard. It also tracks the KeyEvents produced by the device
+//! in order to verify/change the inferred keyboard type.
+
+use crate::input::{DeviceId, InputDevice, KeyboardType};
+use crate::ModifierState;
+
+/// The KeyboardClassifier is used to classify a keyboard device into non-keyboard, alphabetic
+/// keyboard or non-alphabetic keyboard
+#[derive(Default)]
+pub struct KeyboardClassifier {}
+
+impl KeyboardClassifier {
+    /// Create a new KeyboardClassifier
+    pub fn new() -> Self {
+        Default::default()
+    }
+
+    /// Adds keyboard to KeyboardClassifier
+    pub fn notify_keyboard_changed(&mut self, _device: InputDevice) {
+        // TODO(b/263559234): Implement method
+    }
+
+    /// Get keyboard type for a tracked keyboard in KeyboardClassifier
+    pub fn get_keyboard_type(&self, _device_id: DeviceId) -> KeyboardType {
+        // TODO(b/263559234): Implement method
+        KeyboardType::None
+    }
+
+    /// Tells if keyboard type classification is finalized. Once finalized the classification can't
+    /// change until device is reconnected again.
+    pub fn is_finalized(&self, _device_id: DeviceId) -> bool {
+        // TODO(b/263559234): Implement method
+        false
+    }
+
+    /// Process a key event and change keyboard type if required.
+    pub fn process_key(
+        &mut self,
+        _device_id: DeviceId,
+        _evdev_code: i32,
+        _modifier_state: ModifierState,
+    ) {
+        // TODO(b/263559234): Implement method
+    }
+}
diff --git a/libs/input/rust/lib.rs b/libs/input/rust/lib.rs
index fb3f520..5010475 100644
--- a/libs/input/rust/lib.rs
+++ b/libs/input/rust/lib.rs
@@ -18,9 +18,13 @@
 
 mod input;
 mod input_verifier;
+mod keyboard_classifier;
 
-pub use input::{DeviceId, MotionAction, MotionFlags, Source};
+pub use input::{
+    DeviceClass, DeviceId, InputDevice, ModifierState, MotionAction, MotionFlags, Source,
+};
 pub use input_verifier::InputVerifier;
+pub use keyboard_classifier::KeyboardClassifier;
 
 #[cxx::bridge(namespace = "android::input")]
 #[allow(unsafe_op_in_unsafe_fn)]
@@ -47,7 +51,8 @@
         /// }
         /// ```
         type InputVerifier;
-        fn create(name: String) -> Box<InputVerifier>;
+        #[cxx_name = create]
+        fn create_input_verifier(name: String) -> Box<InputVerifier>;
         fn process_movement(
             verifier: &mut InputVerifier,
             device_id: i32,
@@ -59,15 +64,53 @@
         fn reset_device(verifier: &mut InputVerifier, device_id: i32);
     }
 
+    #[namespace = "android::input::keyboardClassifier"]
+    extern "Rust" {
+        /// Used to classify a keyboard into alphabetic and non-alphabetic
+        type KeyboardClassifier;
+        #[cxx_name = create]
+        fn create_keyboard_classifier() -> Box<KeyboardClassifier>;
+        #[cxx_name = notifyKeyboardChanged]
+        fn notify_keyboard_changed(
+            classifier: &mut KeyboardClassifier,
+            device_id: i32,
+            identifier: RustInputDeviceIdentifier,
+            device_classes: u32,
+        );
+        #[cxx_name = getKeyboardType]
+        fn get_keyboard_type(classifier: &mut KeyboardClassifier, device_id: i32) -> u32;
+        #[cxx_name = isFinalized]
+        fn is_finalized(classifier: &mut KeyboardClassifier, device_id: i32) -> bool;
+        #[cxx_name = processKey]
+        fn process_key(
+            classifier: &mut KeyboardClassifier,
+            device_id: i32,
+            evdev_code: i32,
+            modifier_state: u32,
+        );
+    }
+
     #[derive(Debug, Copy, Clone, Eq, PartialEq, Hash)]
     pub struct RustPointerProperties {
         pub id: i32,
     }
+
+    #[derive(Debug)]
+    pub struct RustInputDeviceIdentifier {
+        pub name: String,
+        pub location: String,
+        pub unique_id: String,
+        pub bus: u16,
+        pub vendor: u16,
+        pub product: u16,
+        pub version: u16,
+        pub descriptor: String,
+    }
 }
 
-use crate::ffi::RustPointerProperties;
+use crate::ffi::{RustInputDeviceIdentifier, RustPointerProperties};
 
-fn create(name: String) -> Box<InputVerifier> {
+fn create_input_verifier(name: String) -> Box<InputVerifier> {
     Box::new(InputVerifier::new(&name, ffi::shouldLog("InputVerifierLogEvents")))
 }
 
@@ -103,3 +146,53 @@
 fn reset_device(verifier: &mut InputVerifier, device_id: i32) {
     verifier.reset_device(DeviceId(device_id));
 }
+
+fn create_keyboard_classifier() -> Box<KeyboardClassifier> {
+    Box::new(KeyboardClassifier::new())
+}
+
+fn notify_keyboard_changed(
+    classifier: &mut KeyboardClassifier,
+    device_id: i32,
+    identifier: RustInputDeviceIdentifier,
+    device_classes: u32,
+) {
+    let classes = DeviceClass::from_bits(device_classes);
+    if classes.is_none() {
+        panic!(
+            "The conversion of device class 0x{:08x} failed, please check if some device classes
+             have not been added to DeviceClass.",
+            device_classes
+        );
+    }
+    classifier.notify_keyboard_changed(InputDevice {
+        device_id: DeviceId(device_id),
+        identifier,
+        classes: classes.unwrap(),
+    });
+}
+
+fn get_keyboard_type(classifier: &mut KeyboardClassifier, device_id: i32) -> u32 {
+    classifier.get_keyboard_type(DeviceId(device_id)) as u32
+}
+
+fn is_finalized(classifier: &mut KeyboardClassifier, device_id: i32) -> bool {
+    classifier.is_finalized(DeviceId(device_id))
+}
+
+fn process_key(
+    classifier: &mut KeyboardClassifier,
+    device_id: i32,
+    evdev_code: i32,
+    meta_state: u32,
+) {
+    let modifier_state = ModifierState::from_bits(meta_state);
+    if modifier_state.is_none() {
+        panic!(
+            "The conversion of meta state 0x{:08x} failed, please check if some meta state
+             have not been added to ModifierState.",
+            meta_state
+        );
+    }
+    classifier.process_key(DeviceId(device_id), evdev_code, modifier_state.unwrap());
+}
diff --git a/services/inputflinger/reader/InputDevice.cpp b/services/inputflinger/reader/InputDevice.cpp
index b807b27..2b33403 100644
--- a/services/inputflinger/reader/InputDevice.cpp
+++ b/services/inputflinger/reader/InputDevice.cpp
@@ -237,6 +237,12 @@
     mIsExternal = mClasses.test(InputDeviceClass::EXTERNAL);
     mHasMic = mClasses.test(InputDeviceClass::MIC);
 
+    // Update keyboard type
+    if (mClasses.test(InputDeviceClass::KEYBOARD)) {
+        mContext->getKeyboardClassifier().notifyKeyboardChanged(mId, mIdentifier, mClasses.get());
+        mKeyboardType = mContext->getKeyboardClassifier().getKeyboardType(mId);
+    }
+
     using Change = InputReaderConfiguration::Change;
 
     if (!changes.any() || !isIgnored()) {
@@ -445,6 +451,7 @@
                              mHasMic,
                              getAssociatedDisplayId().value_or(ui::LogicalDisplayId::INVALID),
                              {mShouldSmoothScroll}, isEnabled());
+    outDeviceInfo.setKeyboardType(static_cast<int32_t>(mKeyboardType));
 
     for_each_mapper(
             [&outDeviceInfo](InputMapper& mapper) { mapper.populateDeviceInfo(outDeviceInfo); });
@@ -517,13 +524,9 @@
 
     // Keyboard-like devices.
     uint32_t keyboardSource = 0;
-    int32_t keyboardType = AINPUT_KEYBOARD_TYPE_NON_ALPHABETIC;
     if (classes.test(InputDeviceClass::KEYBOARD)) {
         keyboardSource |= AINPUT_SOURCE_KEYBOARD;
     }
-    if (classes.test(InputDeviceClass::ALPHAKEY)) {
-        keyboardType = AINPUT_KEYBOARD_TYPE_ALPHABETIC;
-    }
     if (classes.test(InputDeviceClass::DPAD)) {
         keyboardSource |= AINPUT_SOURCE_DPAD;
     }
@@ -532,8 +535,8 @@
     }
 
     if (keyboardSource != 0) {
-        mappers.push_back(createInputMapper<KeyboardInputMapper>(contextPtr, readerConfig,
-                                                                 keyboardSource, keyboardType));
+        mappers.push_back(
+                createInputMapper<KeyboardInputMapper>(contextPtr, readerConfig, keyboardSource));
     }
 
     // Cursor-like devices.
@@ -730,6 +733,13 @@
     return mController ? std::make_optional(mController->getEventHubId()) : std::nullopt;
 }
 
+void InputDevice::setKeyboardType(KeyboardType keyboardType) {
+    if (mKeyboardType != keyboardType) {
+        mKeyboardType = keyboardType;
+        bumpGeneration();
+    }
+}
+
 InputDeviceContext::InputDeviceContext(InputDevice& device, int32_t eventHubId)
       : mDevice(device),
         mContext(device.getContext()),
diff --git a/services/inputflinger/reader/InputReader.cpp b/services/inputflinger/reader/InputReader.cpp
index b9523ef..ab13ad4 100644
--- a/services/inputflinger/reader/InputReader.cpp
+++ b/services/inputflinger/reader/InputReader.cpp
@@ -102,6 +102,7 @@
         mEventHub(eventHub),
         mPolicy(policy),
         mNextListener(listener),
+        mKeyboardClassifier(std::make_unique<KeyboardClassifier>()),
         mGlobalMetaState(AMETA_NONE),
         mLedMetaState(AMETA_NONE),
         mGeneration(1),
@@ -1076,4 +1077,8 @@
     return mIdGenerator.nextId();
 }
 
+KeyboardClassifier& InputReader::ContextImpl::getKeyboardClassifier() {
+    return *mReader->mKeyboardClassifier;
+}
+
 } // namespace android
diff --git a/services/inputflinger/reader/include/EventHub.h b/services/inputflinger/reader/include/EventHub.h
index 39d2f5b..7cf584d 100644
--- a/services/inputflinger/reader/include/EventHub.h
+++ b/services/inputflinger/reader/include/EventHub.h
@@ -85,64 +85,67 @@
 
 /*
  * Input device classes.
+ *
+ * These classes are duplicated in rust side here: /frameworks/native/libs/input/rust/input.rs.
+ * If any new classes are added, we need to add them in rust input side too.
  */
 enum class InputDeviceClass : uint32_t {
     /* The input device is a keyboard or has buttons. */
-    KEYBOARD = 0x00000001,
+    KEYBOARD = android::os::IInputConstants::DEVICE_CLASS_KEYBOARD,
 
     /* The input device is an alpha-numeric keyboard (not just a dial pad). */
-    ALPHAKEY = 0x00000002,
+    ALPHAKEY = android::os::IInputConstants::DEVICE_CLASS_ALPHAKEY,
 
     /* The input device is a touchscreen or a touchpad (either single-touch or multi-touch). */
-    TOUCH = 0x00000004,
+    TOUCH = android::os::IInputConstants::DEVICE_CLASS_TOUCH,
 
     /* The input device is a cursor device such as a trackball or mouse. */
-    CURSOR = 0x00000008,
+    CURSOR = android::os::IInputConstants::DEVICE_CLASS_CURSOR,
 
     /* The input device is a multi-touch touchscreen or touchpad. */
-    TOUCH_MT = 0x00000010,
+    TOUCH_MT = android::os::IInputConstants::DEVICE_CLASS_TOUCH_MT,
 
     /* The input device is a directional pad (implies keyboard, has DPAD keys). */
-    DPAD = 0x00000020,
+    DPAD = android::os::IInputConstants::DEVICE_CLASS_DPAD,
 
     /* The input device is a gamepad (implies keyboard, has BUTTON keys). */
-    GAMEPAD = 0x00000040,
+    GAMEPAD = android::os::IInputConstants::DEVICE_CLASS_GAMEPAD,
 
     /* The input device has switches. */
-    SWITCH = 0x00000080,
+    SWITCH = android::os::IInputConstants::DEVICE_CLASS_SWITCH,
 
     /* The input device is a joystick (implies gamepad, has joystick absolute axes). */
-    JOYSTICK = 0x00000100,
+    JOYSTICK = android::os::IInputConstants::DEVICE_CLASS_JOYSTICK,
 
     /* The input device has a vibrator (supports FF_RUMBLE). */
-    VIBRATOR = 0x00000200,
+    VIBRATOR = android::os::IInputConstants::DEVICE_CLASS_VIBRATOR,
 
     /* The input device has a microphone. */
-    MIC = 0x00000400,
+    MIC = android::os::IInputConstants::DEVICE_CLASS_MIC,
 
     /* The input device is an external stylus (has data we want to fuse with touch data). */
-    EXTERNAL_STYLUS = 0x00000800,
+    EXTERNAL_STYLUS = android::os::IInputConstants::DEVICE_CLASS_EXTERNAL_STYLUS,
 
     /* The input device has a rotary encoder */
-    ROTARY_ENCODER = 0x00001000,
+    ROTARY_ENCODER = android::os::IInputConstants::DEVICE_CLASS_ROTARY_ENCODER,
 
     /* The input device has a sensor like accelerometer, gyro, etc */
-    SENSOR = 0x00002000,
+    SENSOR = android::os::IInputConstants::DEVICE_CLASS_SENSOR,
 
     /* The input device has a battery */
-    BATTERY = 0x00004000,
+    BATTERY = android::os::IInputConstants::DEVICE_CLASS_BATTERY,
 
     /* The input device has sysfs controllable lights */
-    LIGHT = 0x00008000,
+    LIGHT = android::os::IInputConstants::DEVICE_CLASS_LIGHT,
 
     /* The input device is a touchpad, requiring an on-screen cursor. */
-    TOUCHPAD = 0x00010000,
+    TOUCHPAD = android::os::IInputConstants::DEVICE_CLASS_TOUCHPAD,
 
     /* The input device is virtual (not a real device, not part of UI configuration). */
-    VIRTUAL = 0x40000000,
+    VIRTUAL = android::os::IInputConstants::DEVICE_CLASS_VIRTUAL,
 
     /* The input device is external (not built-in). */
-    EXTERNAL = 0x80000000,
+    EXTERNAL = android::os::IInputConstants::DEVICE_CLASS_EXTERNAL,
 };
 
 enum class SysfsClass : uint32_t {
diff --git a/services/inputflinger/reader/include/InputDevice.h b/services/inputflinger/reader/include/InputDevice.h
index 4c9af2e..2a7e262 100644
--- a/services/inputflinger/reader/include/InputDevice.h
+++ b/services/inputflinger/reader/include/InputDevice.h
@@ -79,6 +79,8 @@
 
     inline bool isIgnored() { return !getMapperCount() && !mController; }
 
+    inline KeyboardType getKeyboardType() const { return mKeyboardType; }
+
     bool isEnabled();
 
     void dump(std::string& dump, const std::string& eventHubDevStr);
@@ -124,6 +126,8 @@
 
     void addKeyRemapping(int32_t fromKeyCode, int32_t toKeyCode);
 
+    void setKeyboardType(KeyboardType keyboardType);
+
     void bumpGeneration();
 
     [[nodiscard]] NotifyDeviceResetArgs notifyReset(nsecs_t when);
@@ -196,6 +200,7 @@
     uint32_t mSources;
     bool mIsWaking;
     bool mIsExternal;
+    KeyboardType mKeyboardType = KeyboardType::NONE;
     std::optional<uint8_t> mAssociatedDisplayPort;
     std::optional<std::string> mAssociatedDisplayUniqueIdByPort;
     std::optional<std::string> mAssociatedDisplayUniqueIdByDescriptor;
@@ -470,6 +475,10 @@
     }
     inline void bumpGeneration() { mDevice.bumpGeneration(); }
     inline const PropertyMap& getConfiguration() const { return mDevice.getConfiguration(); }
+    inline KeyboardType getKeyboardType() const { return mDevice.getKeyboardType(); }
+    inline void setKeyboardType(KeyboardType keyboardType) {
+        return mDevice.setKeyboardType(keyboardType);
+    }
 
 private:
     InputDevice& mDevice;
diff --git a/services/inputflinger/reader/include/InputReader.h b/services/inputflinger/reader/include/InputReader.h
index 7e701c5..6f8c289 100644
--- a/services/inputflinger/reader/include/InputReader.h
+++ b/services/inputflinger/reader/include/InputReader.h
@@ -157,6 +157,7 @@
         void setLastKeyDownTimestamp(nsecs_t when) REQUIRES(mReader->mLock)
                 REQUIRES(mLock) override;
         nsecs_t getLastKeyDownTimestamp() REQUIRES(mReader->mLock) REQUIRES(mLock) override;
+        KeyboardClassifier& getKeyboardClassifier() override;
     } mContext;
 
     friend class ContextImpl;
@@ -176,6 +177,10 @@
 
     // The next stage that should receive the events generated inside InputReader.
     InputListenerInterface& mNextListener;
+
+    // Classifier for keyboard/keyboard-like devices
+    std::unique_ptr<KeyboardClassifier> mKeyboardClassifier;
+
     // As various events are generated inside InputReader, they are stored inside this list. The
     // list can only be accessed with the lock, so the events inside it are well-ordered.
     // Once the reader is done working, these events will be swapped into a temporary storage and
diff --git a/services/inputflinger/reader/include/InputReaderContext.h b/services/inputflinger/reader/include/InputReaderContext.h
index 907a49f..e0e0ac2 100644
--- a/services/inputflinger/reader/include/InputReaderContext.h
+++ b/services/inputflinger/reader/include/InputReaderContext.h
@@ -17,6 +17,7 @@
 #pragma once
 
 #include <input/InputDevice.h>
+#include <input/KeyboardClassifier.h>
 #include "NotifyArgs.h"
 
 #include <vector>
@@ -64,6 +65,8 @@
 
     virtual void setLastKeyDownTimestamp(nsecs_t when) = 0;
     virtual nsecs_t getLastKeyDownTimestamp() = 0;
+
+    virtual KeyboardClassifier& getKeyboardClassifier() = 0;
 };
 
 } // namespace android
diff --git a/services/inputflinger/reader/mapper/KeyboardInputMapper.cpp b/services/inputflinger/reader/mapper/KeyboardInputMapper.cpp
index 2124555..2e32380 100644
--- a/services/inputflinger/reader/mapper/KeyboardInputMapper.cpp
+++ b/services/inputflinger/reader/mapper/KeyboardInputMapper.cpp
@@ -21,6 +21,7 @@
 #include "KeyboardInputMapper.h"
 
 #include <ftl/enum.h>
+#include <input/KeyboardClassifier.h>
 #include <ui/Rotation.h>
 
 namespace android {
@@ -96,8 +97,8 @@
 
 KeyboardInputMapper::KeyboardInputMapper(InputDeviceContext& deviceContext,
                                          const InputReaderConfiguration& readerConfig,
-                                         uint32_t source, int32_t keyboardType)
-      : InputMapper(deviceContext, readerConfig), mSource(source), mKeyboardType(keyboardType) {}
+                                         uint32_t source)
+      : InputMapper(deviceContext, readerConfig), mSource(source) {}
 
 uint32_t KeyboardInputMapper::getSources() const {
     return mSource;
@@ -131,7 +132,6 @@
 void KeyboardInputMapper::populateDeviceInfo(InputDeviceInfo& info) {
     InputMapper::populateDeviceInfo(info);
 
-    info.setKeyboardType(mKeyboardType);
     info.setKeyCharacterMap(getDeviceContext().getKeyCharacterMap());
 
     std::optional keyboardLayoutInfo = getKeyboardLayoutInfo();
@@ -143,7 +143,6 @@
 void KeyboardInputMapper::dump(std::string& dump) {
     dump += INDENT2 "Keyboard Input Mapper:\n";
     dumpParameters(dump);
-    dump += StringPrintf(INDENT3 "KeyboardType: %d\n", mKeyboardType);
     dump += StringPrintf(INDENT3 "Orientation: %s\n", ftl::enum_string(getOrientation()).c_str());
     dump += StringPrintf(INDENT3 "KeyDowns: %zu keys currently down\n", mKeyDowns.size());
     dump += StringPrintf(INDENT3 "MetaState: 0x%0x\n", mMetaState);
@@ -327,13 +326,24 @@
         keyMetaState = mMetaState;
     }
 
+    DeviceId deviceId = getDeviceId();
+
+    // On first down: Process key for keyboard classification (will send reconfiguration if the
+    // keyboard type change)
+    if (down && !keyDownIndex) {
+        KeyboardClassifier& classifier = getDeviceContext().getContext()->getKeyboardClassifier();
+        classifier.processKey(deviceId, scanCode, keyMetaState);
+        getDeviceContext().setKeyboardType(classifier.getKeyboardType(deviceId));
+    }
+
+    KeyboardType keyboardType = getDeviceContext().getKeyboardType();
     // Any key down on an external keyboard should wake the device.
     // We don't do this for internal keyboards to prevent them from waking up in your pocket.
     // For internal keyboards and devices for which the default wake behavior is explicitly
     // prevented (e.g. TV remotes), the key layout file should specify the policy flags for each
     // wake key individually.
     if (down && getDeviceContext().isExternal() && !mParameters.doNotWakeByDefault &&
-        !(mKeyboardType != AINPUT_KEYBOARD_TYPE_ALPHABETIC && isMediaKey(keyCode))) {
+        !(keyboardType != KeyboardType::ALPHABETIC && isMediaKey(keyCode))) {
         policyFlags |= POLICY_FLAG_WAKE;
     }
 
@@ -341,8 +351,8 @@
         policyFlags |= POLICY_FLAG_DISABLE_KEY_REPEAT;
     }
 
-    out.emplace_back(NotifyKeyArgs(getContext()->getNextId(), when, readTime, getDeviceId(),
-                                   mSource, getDisplayId(), policyFlags,
+    out.emplace_back(NotifyKeyArgs(getContext()->getNextId(), when, readTime, deviceId, mSource,
+                                   getDisplayId(), policyFlags,
                                    down ? AKEY_EVENT_ACTION_DOWN : AKEY_EVENT_ACTION_UP, flags,
                                    keyCode, scanCode, keyMetaState, downTime));
     return out;
diff --git a/services/inputflinger/reader/mapper/KeyboardInputMapper.h b/services/inputflinger/reader/mapper/KeyboardInputMapper.h
index f2d3f4d..bee2a99 100644
--- a/services/inputflinger/reader/mapper/KeyboardInputMapper.h
+++ b/services/inputflinger/reader/mapper/KeyboardInputMapper.h
@@ -61,7 +61,6 @@
     };
 
     uint32_t mSource{};
-    int32_t mKeyboardType{};
     std::optional<KeyboardLayoutInfo> mKeyboardLayoutInfo;
 
     std::vector<KeyDown> mKeyDowns{}; // keys that are down
@@ -85,8 +84,7 @@
     } mParameters{};
 
     KeyboardInputMapper(InputDeviceContext& deviceContext,
-                        const InputReaderConfiguration& readerConfig, uint32_t source,
-                        int32_t keyboardType);
+                        const InputReaderConfiguration& readerConfig, uint32_t source);
     void configureParameters();
     void dumpParameters(std::string& dump) const;
 
diff --git a/services/inputflinger/tests/InputReader_test.cpp b/services/inputflinger/tests/InputReader_test.cpp
index 8536ff0..07fa59f 100644
--- a/services/inputflinger/tests/InputReader_test.cpp
+++ b/services/inputflinger/tests/InputReader_test.cpp
@@ -3314,6 +3314,10 @@
 
 class KeyboardInputMapperTest : public InputMapperTest {
 protected:
+    void SetUp() override {
+        InputMapperTest::SetUp(DEVICE_CLASSES | InputDeviceClass::KEYBOARD |
+                               InputDeviceClass::ALPHAKEY);
+    }
     const std::string UNIQUE_ID = "local:0";
     const KeyboardLayoutInfo DEVICE_KEYBOARD_LAYOUT_INFO = KeyboardLayoutInfo("en-US", "qwerty");
     void prepareDisplay(ui::Rotation orientation);
@@ -3354,8 +3358,7 @@
 
 TEST_F(KeyboardInputMapperTest, GetSources) {
     KeyboardInputMapper& mapper =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD,
-                                                       AINPUT_KEYBOARD_TYPE_ALPHABETIC);
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
 
     ASSERT_EQ(AINPUT_SOURCE_KEYBOARD, mapper.getSources());
 }
@@ -3370,8 +3373,7 @@
     mFakeEventHub->addKey(EVENTHUB_ID, 0, KEY_SCROLLLOCK, AKEYCODE_SCROLL_LOCK, POLICY_FLAG_WAKE);
 
     KeyboardInputMapper& mapper =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD,
-                                                       AINPUT_KEYBOARD_TYPE_ALPHABETIC);
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
     // Initial metastate is AMETA_NONE.
     ASSERT_EQ(AMETA_NONE, mapper.getMetaState());
 
@@ -3471,8 +3473,7 @@
     mFakeEventHub->addKeyRemapping(EVENTHUB_ID, AKEYCODE_A, AKEYCODE_B);
 
     KeyboardInputMapper& mapper =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD,
-                                                       AINPUT_KEYBOARD_TYPE_ALPHABETIC);
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
 
     // Key down by scan code.
     process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_A, 1);
@@ -3493,8 +3494,7 @@
     mFakeEventHub->addKey(EVENTHUB_ID, KEY_HOME, 0, AKEYCODE_HOME, POLICY_FLAG_WAKE);
 
     KeyboardInputMapper& mapper =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD,
-                                                       AINPUT_KEYBOARD_TYPE_ALPHABETIC);
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
     NotifyKeyArgs args;
 
     // Key down
@@ -3516,8 +3516,7 @@
     mFakeEventHub->addKey(EVENTHUB_ID, 0, KEY_SCROLLLOCK, AKEYCODE_SCROLL_LOCK, 0);
 
     KeyboardInputMapper& mapper =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD,
-                                                       AINPUT_KEYBOARD_TYPE_ALPHABETIC);
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
 
     // Initial metastate is AMETA_NONE.
     ASSERT_EQ(AMETA_NONE, mapper.getMetaState());
@@ -3557,8 +3556,7 @@
     mFakeEventHub->addKey(EVENTHUB_ID, KEY_LEFT, 0, AKEYCODE_DPAD_LEFT, 0);
 
     KeyboardInputMapper& mapper =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD,
-                                                       AINPUT_KEYBOARD_TYPE_ALPHABETIC);
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
 
     prepareDisplay(ui::ROTATION_90);
     ASSERT_NO_FATAL_FAILURE(testDPadKeyRotation(mapper,
@@ -3579,8 +3577,7 @@
 
     addConfigurationProperty("keyboard.orientationAware", "1");
     KeyboardInputMapper& mapper =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD,
-                                                       AINPUT_KEYBOARD_TYPE_ALPHABETIC);
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
 
     prepareDisplay(ui::ROTATION_0);
     ASSERT_NO_FATAL_FAILURE(
@@ -3651,8 +3648,7 @@
     mFakeEventHub->addKey(EVENTHUB_ID, KEY_UP, 0, AKEYCODE_DPAD_UP, 0);
 
     KeyboardInputMapper& mapper =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD,
-                                                       AINPUT_KEYBOARD_TYPE_ALPHABETIC);
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
     NotifyKeyArgs args;
 
     // Display id should be LogicalDisplayId::INVALID without any display configuration.
@@ -3677,8 +3673,7 @@
 
     addConfigurationProperty("keyboard.orientationAware", "1");
     KeyboardInputMapper& mapper =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD,
-                                                       AINPUT_KEYBOARD_TYPE_ALPHABETIC);
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
     NotifyKeyArgs args;
 
     // Display id should be LogicalDisplayId::INVALID without any display configuration.
@@ -3705,8 +3700,7 @@
 
 TEST_F(KeyboardInputMapperTest, GetKeyCodeState) {
     KeyboardInputMapper& mapper =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD,
-                                                       AINPUT_KEYBOARD_TYPE_ALPHABETIC);
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
 
     mFakeEventHub->setKeyCodeState(EVENTHUB_ID, AKEYCODE_A, 1);
     ASSERT_EQ(1, mapper.getKeyCodeState(AINPUT_SOURCE_ANY, AKEYCODE_A));
@@ -3717,8 +3711,7 @@
 
 TEST_F(KeyboardInputMapperTest, GetKeyCodeForKeyLocation) {
     KeyboardInputMapper& mapper =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD,
-                                                       AINPUT_KEYBOARD_TYPE_ALPHABETIC);
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
 
     mFakeEventHub->addKeyCodeMapping(EVENTHUB_ID, AKEYCODE_Y, AKEYCODE_Z);
     ASSERT_EQ(AKEYCODE_Z, mapper.getKeyCodeForKeyLocation(AKEYCODE_Y))
@@ -3730,8 +3723,7 @@
 
 TEST_F(KeyboardInputMapperTest, GetScanCodeState) {
     KeyboardInputMapper& mapper =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD,
-                                                       AINPUT_KEYBOARD_TYPE_ALPHABETIC);
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
 
     mFakeEventHub->setScanCodeState(EVENTHUB_ID, KEY_A, 1);
     ASSERT_EQ(1, mapper.getScanCodeState(AINPUT_SOURCE_ANY, KEY_A));
@@ -3742,8 +3734,7 @@
 
 TEST_F(KeyboardInputMapperTest, MarkSupportedKeyCodes) {
     KeyboardInputMapper& mapper =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD,
-                                                       AINPUT_KEYBOARD_TYPE_ALPHABETIC);
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
 
     mFakeEventHub->addKey(EVENTHUB_ID, KEY_A, 0, AKEYCODE_A, 0);
 
@@ -3762,8 +3753,7 @@
     mFakeEventHub->addKey(EVENTHUB_ID, KEY_SCROLLLOCK, 0, AKEYCODE_SCROLL_LOCK, 0);
 
     KeyboardInputMapper& mapper =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD,
-                                                       AINPUT_KEYBOARD_TYPE_ALPHABETIC);
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
     // Initial metastate is AMETA_NONE.
     ASSERT_EQ(AMETA_NONE, mapper.getMetaState());
 
@@ -3828,8 +3818,7 @@
     mFakeEventHub->addKey(EVENTHUB_ID, BTN_Y, 0, AKEYCODE_BUTTON_Y, 0);
 
     KeyboardInputMapper& mapper =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD,
-                                                       AINPUT_KEYBOARD_TYPE_NON_ALPHABETIC);
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
 
     // Meta state should be AMETA_NONE after reset
     std::list<NotifyArgs> unused = mapper.reset(ARBITRARY_TIME);
@@ -3878,16 +3867,14 @@
     mFakeEventHub->addKey(SECOND_EVENTHUB_ID, KEY_LEFT, 0, AKEYCODE_DPAD_LEFT, 0);
 
     KeyboardInputMapper& mapper =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD,
-                                                       AINPUT_KEYBOARD_TYPE_ALPHABETIC);
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
 
     device2->addEmptyEventHubDevice(SECOND_EVENTHUB_ID);
     KeyboardInputMapper& mapper2 =
             device2->constructAndAddMapper<KeyboardInputMapper>(SECOND_EVENTHUB_ID,
                                                                 mFakePolicy
                                                                         ->getReaderConfiguration(),
-                                                                AINPUT_SOURCE_KEYBOARD,
-                                                                AINPUT_KEYBOARD_TYPE_ALPHABETIC);
+                                                                AINPUT_SOURCE_KEYBOARD);
     std::list<NotifyArgs> unused =
             device2->configure(ARBITRARY_TIME, mFakePolicy->getReaderConfiguration(),
                                /*changes=*/{});
@@ -3949,8 +3936,7 @@
     mFakeEventHub->addKey(EVENTHUB_ID, KEY_SCROLLLOCK, 0, AKEYCODE_SCROLL_LOCK, 0);
 
     KeyboardInputMapper& mapper =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD,
-                                                       AINPUT_KEYBOARD_TYPE_ALPHABETIC);
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
     // Initial metastate is AMETA_NONE.
     ASSERT_EQ(AMETA_NONE, mapper.getMetaState());
 
@@ -4000,8 +3986,7 @@
             device2->constructAndAddMapper<KeyboardInputMapper>(SECOND_EVENTHUB_ID,
                                                                 mFakePolicy
                                                                         ->getReaderConfiguration(),
-                                                                AINPUT_SOURCE_KEYBOARD,
-                                                                AINPUT_KEYBOARD_TYPE_ALPHABETIC);
+                                                                AINPUT_SOURCE_KEYBOARD);
     std::list<NotifyArgs> unused =
             device2->configure(ARBITRARY_TIME, mFakePolicy->getReaderConfiguration(),
                                /*changes=*/{});
@@ -4020,11 +4005,9 @@
     mFakeEventHub->addKey(EVENTHUB_ID, KEY_SCROLLLOCK, 0, AKEYCODE_SCROLL_LOCK, 0);
 
     // Suppose we have two mappers. (DPAD + KEYBOARD)
-    constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_DPAD,
-                                               AINPUT_KEYBOARD_TYPE_NON_ALPHABETIC);
+    constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_DPAD);
     KeyboardInputMapper& mapper =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD,
-                                                       AINPUT_KEYBOARD_TYPE_ALPHABETIC);
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
     // Initial metastate is AMETA_NONE.
     ASSERT_EQ(AMETA_NONE, mapper.getMetaState());
 
@@ -4042,8 +4025,7 @@
     mFakeEventHub->addKey(EVENTHUB_ID, KEY_SCROLLLOCK, 0, AKEYCODE_SCROLL_LOCK, 0);
 
     KeyboardInputMapper& mapper1 =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD,
-                                                       AINPUT_KEYBOARD_TYPE_ALPHABETIC);
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
 
     // keyboard 2.
     const std::string USB2 = "USB2";
@@ -4065,8 +4047,7 @@
             device2->constructAndAddMapper<KeyboardInputMapper>(SECOND_EVENTHUB_ID,
                                                                 mFakePolicy
                                                                         ->getReaderConfiguration(),
-                                                                AINPUT_SOURCE_KEYBOARD,
-                                                                AINPUT_KEYBOARD_TYPE_ALPHABETIC);
+                                                                AINPUT_SOURCE_KEYBOARD);
     std::list<NotifyArgs> unused =
             device2->configure(ARBITRARY_TIME, mFakePolicy->getReaderConfiguration(),
                                /*changes=*/{});
@@ -4122,8 +4103,7 @@
     mFakeEventHub->addKey(EVENTHUB_ID, 0, USAGE_A, AKEYCODE_A, POLICY_FLAG_WAKE);
 
     KeyboardInputMapper& mapper =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD,
-                                                       AINPUT_KEYBOARD_TYPE_ALPHABETIC);
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
     // Key down by scan code.
     process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_HOME, 1);
     NotifyKeyArgs args;
@@ -4148,8 +4128,7 @@
 }
 
 TEST_F(KeyboardInputMapperTest, Configure_AssignKeyboardLayoutInfo) {
-    constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD,
-                                               AINPUT_KEYBOARD_TYPE_ALPHABETIC);
+    constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
     std::list<NotifyArgs> unused =
             mDevice->configure(ARBITRARY_TIME, mFakePolicy->getReaderConfiguration(),
                                /*changes=*/{});
@@ -4180,8 +4159,7 @@
                                     RawLayoutInfo{.languageTag = "en", .layoutType = "extended"});
 
     // Configuration
-    constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD,
-                                               AINPUT_KEYBOARD_TYPE_ALPHABETIC);
+    constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
     InputReaderConfiguration config;
     std::list<NotifyArgs> unused = mDevice->configure(ARBITRARY_TIME, config, /*changes=*/{});
 
@@ -4192,8 +4170,7 @@
 TEST_F(KeyboardInputMapperTest, Process_GesureEventToSetFlagKeepTouchMode) {
     mFakeEventHub->addKey(EVENTHUB_ID, KEY_LEFT, 0, AKEYCODE_DPAD_LEFT, POLICY_FLAG_GESTURE);
     KeyboardInputMapper& mapper =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD,
-                                                       AINPUT_KEYBOARD_TYPE_ALPHABETIC);
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
     NotifyKeyArgs args;
 
     // Key down
@@ -4202,14 +4179,27 @@
     ASSERT_EQ(AKEY_EVENT_FLAG_FROM_SYSTEM | AKEY_EVENT_FLAG_KEEP_TOUCH_MODE, args.flags);
 }
 
-// --- KeyboardInputMapperTest_ExternalDevice ---
+// --- KeyboardInputMapperTest_ExternalAlphabeticDevice ---
 
-class KeyboardInputMapperTest_ExternalDevice : public InputMapperTest {
+class KeyboardInputMapperTest_ExternalAlphabeticDevice : public InputMapperTest {
 protected:
-    void SetUp() override { InputMapperTest::SetUp(DEVICE_CLASSES | InputDeviceClass::EXTERNAL); }
+    void SetUp() override {
+        InputMapperTest::SetUp(DEVICE_CLASSES | InputDeviceClass::KEYBOARD |
+                               InputDeviceClass::ALPHAKEY | InputDeviceClass::EXTERNAL);
+    }
 };
 
-TEST_F(KeyboardInputMapperTest_ExternalDevice, WakeBehavior_AlphabeticKeyboard) {
+// --- KeyboardInputMapperTest_ExternalNonAlphabeticDevice ---
+
+class KeyboardInputMapperTest_ExternalNonAlphabeticDevice : public InputMapperTest {
+protected:
+    void SetUp() override {
+        InputMapperTest::SetUp(DEVICE_CLASSES | InputDeviceClass::KEYBOARD |
+                               InputDeviceClass::EXTERNAL);
+    }
+};
+
+TEST_F(KeyboardInputMapperTest_ExternalAlphabeticDevice, WakeBehavior_AlphabeticKeyboard) {
     // For external devices, keys will trigger wake on key down. Media keys should also trigger
     // wake if triggered from external devices.
 
@@ -4219,8 +4209,7 @@
                           POLICY_FLAG_WAKE);
 
     KeyboardInputMapper& mapper =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD,
-                                                       AINPUT_KEYBOARD_TYPE_ALPHABETIC);
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
 
     process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_HOME, 1);
     NotifyKeyArgs args;
@@ -4248,7 +4237,7 @@
     ASSERT_EQ(POLICY_FLAG_WAKE, args.policyFlags);
 }
 
-TEST_F(KeyboardInputMapperTest_ExternalDevice, WakeBehavior_NoneAlphabeticKeyboard) {
+TEST_F(KeyboardInputMapperTest_ExternalNonAlphabeticDevice, WakeBehavior_NonAlphabeticKeyboard) {
     // For external devices, keys will trigger wake on key down. Media keys should not trigger
     // wake if triggered from external non-alphaebtic keyboard (e.g. headsets).
 
@@ -4257,8 +4246,7 @@
                           POLICY_FLAG_WAKE);
 
     KeyboardInputMapper& mapper =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD,
-                                                       AINPUT_KEYBOARD_TYPE_NON_ALPHABETIC);
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
 
     process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_PLAY, 1);
     NotifyKeyArgs args;
@@ -4278,7 +4266,7 @@
     ASSERT_EQ(POLICY_FLAG_WAKE, args.policyFlags);
 }
 
-TEST_F(KeyboardInputMapperTest_ExternalDevice, DoNotWakeByDefaultBehavior) {
+TEST_F(KeyboardInputMapperTest_ExternalAlphabeticDevice, DoNotWakeByDefaultBehavior) {
     // Tv Remote key's wake behavior is prescribed by the keylayout file.
 
     mFakeEventHub->addKey(EVENTHUB_ID, KEY_HOME, 0, AKEYCODE_HOME, POLICY_FLAG_WAKE);
@@ -4287,8 +4275,7 @@
 
     addConfigurationProperty("keyboard.doNotWakeByDefault", "1");
     KeyboardInputMapper& mapper =
-            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD,
-                                                       AINPUT_KEYBOARD_TYPE_ALPHABETIC);
+            constructAndAddMapper<KeyboardInputMapper>(AINPUT_SOURCE_KEYBOARD);
 
     process(mapper, ARBITRARY_TIME, READ_TIME, EV_KEY, KEY_HOME, 1);
     NotifyKeyArgs args;
diff --git a/services/inputflinger/tests/InterfaceMocks.h b/services/inputflinger/tests/InterfaceMocks.h
index 6389cdc..2d4e917 100644
--- a/services/inputflinger/tests/InterfaceMocks.h
+++ b/services/inputflinger/tests/InterfaceMocks.h
@@ -36,6 +36,7 @@
 #include <input/InputDevice.h>
 #include <input/KeyCharacterMap.h>
 #include <input/KeyLayoutMap.h>
+#include <input/KeyboardClassifier.h>
 #include <input/PropertyMap.h>
 #include <input/TouchVideoFrame.h>
 #include <input/VirtualKeyMap.h>
@@ -75,8 +76,11 @@
     MOCK_METHOD(void, setLastKeyDownTimestamp, (nsecs_t when));
     MOCK_METHOD(nsecs_t, getLastKeyDownTimestamp, ());
 
+    KeyboardClassifier& getKeyboardClassifier() override { return *mClassifier; };
+
 private:
     int32_t mGeneration = 0;
+    std::unique_ptr<KeyboardClassifier> mClassifier = std::make_unique<KeyboardClassifier>();
 };
 
 class MockEventHubInterface : public EventHubInterface {
diff --git a/services/inputflinger/tests/KeyboardInputMapper_test.cpp b/services/inputflinger/tests/KeyboardInputMapper_test.cpp
index 031b77d..ada841d 100644
--- a/services/inputflinger/tests/KeyboardInputMapper_test.cpp
+++ b/services/inputflinger/tests/KeyboardInputMapper_test.cpp
@@ -67,8 +67,7 @@
         EXPECT_CALL(mMockInputReaderContext, getPolicy).WillRepeatedly(Return(mFakePolicy.get()));
 
         mMapper = createInputMapper<KeyboardInputMapper>(*mDeviceContext, mReaderConfiguration,
-                                                         AINPUT_SOURCE_KEYBOARD,
-                                                         AINPUT_KEYBOARD_TYPE_ALPHABETIC);
+                                                         AINPUT_SOURCE_KEYBOARD);
     }
 
     void testPointerVisibilityForKeys(const std::vector<int32_t>& keyCodes, bool expectVisible) {
diff --git a/services/inputflinger/tests/fuzzers/KeyboardInputFuzzer.cpp b/services/inputflinger/tests/fuzzers/KeyboardInputFuzzer.cpp
index 922cbdf..3b3f8d2 100644
--- a/services/inputflinger/tests/fuzzers/KeyboardInputFuzzer.cpp
+++ b/services/inputflinger/tests/fuzzers/KeyboardInputFuzzer.cpp
@@ -50,11 +50,10 @@
     FuzzInputReaderContext context(eventHub, fdp);
     InputDevice device = getFuzzedInputDevice(*fdp, &context);
 
-    KeyboardInputMapper& mapper = getMapperForDevice<
-            ThreadSafeFuzzedDataProvider,
-            KeyboardInputMapper>(*fdp.get(), device, InputReaderConfiguration{},
-                                 /*source=*/fdp->ConsumeIntegral<uint32_t>(),
-                                 /*keyboardType=*/fdp->ConsumeIntegral<int32_t>());
+    KeyboardInputMapper& mapper =
+            getMapperForDevice<ThreadSafeFuzzedDataProvider,
+                               KeyboardInputMapper>(*fdp.get(), device, InputReaderConfiguration{},
+                                                    /*source=*/fdp->ConsumeIntegral<uint32_t>());
 
     // Loop through mapper operations until randomness is exhausted.
     while (fdp->remaining_bytes() > 0) {
diff --git a/services/inputflinger/tests/fuzzers/MapperHelpers.h b/services/inputflinger/tests/fuzzers/MapperHelpers.h
index 25f2f2e..ff425dd 100644
--- a/services/inputflinger/tests/fuzzers/MapperHelpers.h
+++ b/services/inputflinger/tests/fuzzers/MapperHelpers.h
@@ -338,9 +338,11 @@
 
     void setLastKeyDownTimestamp(nsecs_t when) { mLastKeyDownTimestamp = when; };
     nsecs_t getLastKeyDownTimestamp() { return mLastKeyDownTimestamp; };
+    KeyboardClassifier& getKeyboardClassifier() override { return *mClassifier; }
 
 private:
     nsecs_t mLastKeyDownTimestamp;
+    std::unique_ptr<KeyboardClassifier> mClassifier = std::make_unique<KeyboardClassifier>();
 };
 
 template <class Fdp>