diff --git a/hw/xfree86/common/xf86Xinput.c b/hw/xfree86/common/xf86Xinput.c
index 69277203d..411deddab 100644
--- a/hw/xfree86/common/xf86Xinput.c
+++ b/hw/xfree86/common/xf86Xinput.c
@@ -501,7 +501,13 @@ int
 SetDeviceValuators (ClientPtr client, DeviceIntPtr dev, int *valuators,
                     int first_valuator, int num_valuators)
 {
-  return BadMatch;
+    LocalDevicePtr local = (LocalDevicePtr) dev->public.devicePrivate;
+
+    if (local->set_device_valuators)
+	return (*local->set_device_valuators)(local, valuators, first_valuator,
+					      num_valuators);
+
+    return BadMatch;
 }
 
 
diff --git a/hw/xfree86/common/xf86Xinput.h b/hw/xfree86/common/xf86Xinput.h
index 444b2d488..73dcdb75e 100644
--- a/hw/xfree86/common/xf86Xinput.h
+++ b/hw/xfree86/common/xf86Xinput.h
@@ -113,7 +113,7 @@ typedef struct _LocalDeviceRec {
     struct _LocalDeviceRec *next;
     char *		    name;
     int			    flags;
-    
+
     Bool		    (*device_control)(DeviceIntPtr device, int what);
     void		    (*read_input)(struct _LocalDeviceRec *local);
     int			    (*control_proc)(struct _LocalDeviceRec *local,
@@ -128,7 +128,11 @@ typedef struct _LocalDeviceRec {
     Bool		    (*reverse_conversion_proc)(
 					struct _LocalDeviceRec *local,
 					int x, int y, int *valuators);
-    
+    int                     (*set_device_valuators)
+				(struct _LocalDeviceRec *local,
+				 int *valuators, int first_valuator,
+				 int num_valuators);
+
     int			    fd;
     Atom		    atom;
     DeviceIntPtr	    dev;