diff --git a/include/input/Input.h b/include/input/Input.h
index 17672d1..77d7448 100644
--- a/include/input/Input.h
+++ b/include/input/Input.h
@@ -196,11 +196,11 @@
 #define MAX_POINTER_ID 31
 
 /*
- * Number of high resolution mouse scroll units for one detent (mouse wheel click), as defined in
+ * Number of high resolution scroll units for one detent (scroll wheel click), as defined in
  * evdev. This is relevant when an input device is emitting REL_WHEEL_HI_RES or REL_HWHEEL_HI_RES
  * events.
  */
-constexpr int32_t kEvdevMouseHighResScrollUnitsPerDetent = 120;
+constexpr int32_t kEvdevHighResScrollUnitsPerDetent = 120;
 
 /*
  * Declare a concrete type for the NDK's input event forward declaration.
diff --git a/include/input/VirtualInputDevice.h b/include/input/VirtualInputDevice.h
index 9fbae73..dabe45c 100644
--- a/include/input/VirtualInputDevice.h
+++ b/include/input/VirtualInputDevice.h
@@ -129,6 +129,9 @@
     VirtualRotaryEncoder(android::base::unique_fd fd);
     virtual ~VirtualRotaryEncoder() override;
     bool writeScrollEvent(float scrollAmount, std::chrono::nanoseconds eventTime);
+
+private:
+    int32_t mAccumulatedHighResScrollAmount;
 };
 
 } // namespace android