Add TAG macro definition.

Modified: trunk/reactos/drivers/input/i8042prt/i8042prt.h

--- trunk/reactos/drivers/input/i8042prt/i8042prt.h	2005-06-19 08:05:01 UTC (rev 16081)
+++ trunk/reactos/drivers/input/i8042prt/i8042prt.h	2005-06-19 08:14:18 UTC (rev 16082)
@@ -213,6 +213,7 @@

 /*
  * Some defines
  */

+#define TAG(A, B, C, D) (ULONG)(((A)<<0) + ((B)<<8) + ((C)<<16) + ((D)<<24))

 #define TAG_I8042 TAG('8', '0', '4', '2')
 
 #define KBD_WRAP_MASK      0x1F