diff --git a/include/ui/EventHub.h b/include/ui/EventHub.h
index 25d5afb..d6b09dc 100644
--- a/include/ui/EventHub.h
+++ b/include/ui/EventHub.h
@@ -111,10 +111,10 @@
     /* The input device is a multi-touch touchscreen. */
     INPUT_DEVICE_CLASS_TOUCHSCREEN_MT= 0x00000010,
 
-    /* The input device is a directional pad. */
+    /* The input device is a directional pad (implies keyboard, has DPAD keys). */
     INPUT_DEVICE_CLASS_DPAD          = 0x00000020,
 
-    /* The input device is a gamepad (implies keyboard). */
+    /* The input device is a gamepad (implies keyboard, has BUTTON keys). */
     INPUT_DEVICE_CLASS_GAMEPAD       = 0x00000040,
 
     /* The input device has switches. */