diff --git a/Inc/LinIO.h b/Inc/LinIO.h
index ca9f67d..155c756 100644
--- a/Inc/LinIO.h
+++ b/Inc/LinIO.h
@@ -40,12 +40,13 @@ typedef struct {
     uint8_t g_aRxBuffer[8];
 } tLinData;
 
-typedef uint8_t (* LinIOTransaction  )(void *env, tLinData *linData, uint32_t timeout);
+typedef uint8_t (* LinIOTransactionReceived  )(void *env, tLinData *linData, uint32_t timeout);
+typedef uint8_t (* LinIOTransactionTransmit  )(void *env, tLinData *linData, uint8_t COM_ADR, uint32_t timeout);
 
 typedef struct {
     void *env;
-    LinIOTransaction receivedCommand;
-    LinIOTransaction transmitCommand;
+    LinIOTransactionTransmit transmitCommand;
+    LinIOTransactionReceived receivedCommand;
 } tSerialPortLinIO;