diff --git a/services/inputflinger/include/InputReaderBase.h b/services/inputflinger/include/InputReaderBase.h
index 4ef43ba..7bec94e 100644
--- a/services/inputflinger/include/InputReaderBase.h
+++ b/services/inputflinger/include/InputReaderBase.h
@@ -34,6 +34,7 @@
 #include <vector>
 
 #include "PointerControllerInterface.h"
+#include "TouchpadHardwareState.h"
 #include "VibrationElement.h"
 #include "include/gestures.h"
 
@@ -461,6 +462,10 @@
      */
     virtual void notifyInputDevicesChanged(const std::vector<InputDeviceInfo>& inputDevices) = 0;
 
+    /* Sends the hardware state of a connected touchpad */
+    virtual void notifyTouchpadHardwareState(const SelfContainedHardwareState& schs,
+                                             int32_t deviceId) = 0;
+
     /* Gets the keyboard layout for a particular input device. */
     virtual std::shared_ptr<KeyCharacterMap> getKeyboardLayoutOverlay(
             const InputDeviceIdentifier& identifier,