# On branch master
# Changes to be committed:
#   (use "git reset HEAD <file>..." to unstage)
#
#	modified:   XI.h
#	modified:   XInput.h
#	modified:   XIproto.h
#
# Untracked files:
#   (use "git add <file>..." to include in what will be committed)
#
#	XI.h.orig
diff --git a/XI.h b/XI.h
index 0bfefcc..219ab36 100644
--- a/XI.h
+++ b/XI.h
@@ -163,6 +163,22 @@ SOFTWARE.
 #define DEVICE_CORE             3
 #define DEVICE_ENABLE           4
 #define DEVICE_ABS_AREA         5
+#define DEVICE_PTRACCEL         6
+
+#define DevicePtrAccel_Scheme              (DEVICE_PTRACCEL + 0)
+#define DevicePtrAccel_Profile             (DEVICE_PTRACCEL + 1)
+#define DevicePtrAccel_Scale               (DEVICE_PTRACCEL + 2)
+#define DevicePtrAccel_Coeff               (DEVICE_PTRACCEL + 3)
+#define DevicePtrAccel_AvgDecay            (DEVICE_PTRACCEL + 4)
+#define DevicePtrAccel_MinAcc              (DEVICE_PTRACCEL + 5)
+#define DevicePtrAccel_ConstAcc            (DEVICE_PTRACCEL + 6)
+#define DevicePtrAccel_Soften              (DEVICE_PTRACCEL + 7)
+#define DevicePtrAccel_Coupling            (DEVICE_PTRACCEL + 8)
+#define DevicePtrAccel_LutSize             (DEVICE_PTRACCEL + 9)
+#define DevicePtrAccel_SampleCoupling      (DEVICE_PTRACCEL + 10)
+#define DevicePtrAccel_SampleVelocity      (DEVICE_PTRACCEL + 11)
+#define DevicePtrAccel_SampleAcceleration  (DEVICE_PTRACCEL + 12)
+#define DEVICE_PTRACCEL_MAX                DevicePtrAccel_SampleAcceleration
 
 #define NoSuchExtension		1
 
diff --git a/XInput.h b/XInput.h
index e3585b4..e4579c8 100644
--- a/XInput.h
+++ b/XInput.h
@@ -707,6 +707,14 @@ typedef struct {
     int             enable;
 } XDeviceEnableControl, XDeviceEnableState;
 
+typedef struct {
+    XID            control;
+    int            length;
+    int            integer;
+    int            rational_num;
+    int            rational_den;
+} XDeviceAccelerationControl, XDeviceAccelerationState;
+
 /*******************************************************************
  *
  * An array of XDeviceList structures is returned by the 
diff --git a/XIproto.h b/XIproto.h
index 4f46f4f..cad21e8 100644
--- a/XIproto.h
+++ b/XIproto.h
@@ -1331,6 +1331,15 @@ typedef struct {
     CARD16      pad1 B16;
 } xDeviceEnableState;
 
+typedef struct xDeviceAccelerationUniform {
+    CARD16         control B16;  /*DEVICE_PTRACCEL ... DEVICE_PTRACCEL_MAX */
+    CARD16         length  B16;
+    CARD32         integer;
+    CARD32         rational_num;
+    CARD32         rational_den;
+} xDeviceAccelerationState;
+
+
 /*********************************************************
  *
  * ChangeDeviceControl.
@@ -1413,6 +1422,10 @@ typedef struct {
     CARD16          pad1 B16;
 } xDeviceEnableCtl;
 
+
+typedef struct xDeviceAccelerationUniform xDeviceAccelerationCtl;
+
+
 /**********************************************************
  *
  * Input extension events.