diff --git a/include/dinput.h b/include/dinput.h
index 71cc55aece5..2ebe1b1e83e 100644
--- a/include/dinput.h
+++ b/include/dinput.h
@@ -2172,6 +2172,12 @@ extern const DIDATAFORMAT c_dfDIJoystick2;
 };
 #endif
 
+#define DIVIRTUAL_DRIVING_RACE     0x01000000
+#define DIAXIS_DRIVINGR_STEER      0x01008a01
+#define DIAXIS_DRIVINGR_ACCELERATE 0x01039202
+
+#define DIVOICE_CHANNEL1           0x83000401
+
 #define DIAXIS_ANY_X_1             0xFF00C201
 #define DIAXIS_ANY_X_2             0xFF00C202
 #define DIAXIS_ANY_Y_1             0xFF014201