Index: Common.h
===================================================================
diff -u -r8759edf572d021286c409efca4e5e40e0d17b2f6 -rc9ead6cda7679735a3d891456d4871f7cf4f37e3
--- Common.h	(.../Common.h)	(revision 8759edf572d021286c409efca4e5e40e0d17b2f6)
+++ Common.h	(.../Common.h)	(revision c9ead6cda7679735a3d891456d4871f7cf4f37e3)
@@ -210,6 +210,17 @@
     EVENT_DATA_BOOL_T   bln;        ///< Event data of boolean type.
 } EVENT_DATAS_T;
 
+/// Event data types list.
+typedef enum Event_Data_Types
+{
+    EVENT_DATA_TYPE_NONE = 0,                                       ///< No data given.
+    EVENT_DATA_TYPE_U32 = 1,                                        ///< Event data is unsigned 32-bit integer type.
+    EVENT_DATA_TYPE_S32 = 2,                                        ///< Event data is signed 32-bit integer type.
+    EVENT_DATA_TYPE_F32 = 3,                                        ///< Event data is 32-bit floating point type.
+    EVENT_DATA_TYPE_BOOL = 4,                                       ///< Event data is 32-bit boolean type.
+    NUM_OF_EVENT_DATA_TYPES                                         ///< Total number of event data types.
+} EVENT_DATA_TYPES_T;
+
 /// Record structure for event data including the data type to aid in interpretation.
 typedef struct
 {