diff --git a/Inc/LinIO.h b/Inc/LinIO.h
index 2c0cfc0..b1d4690 100644
--- a/Inc/LinIO.h
+++ b/Inc/LinIO.h
@@ -41,13 +41,13 @@ typedef struct {
     uint8_t g_aRxBuffer[8];
 } tLinData;
 
-typedef uint8_t (* LinIOTransaction  )(void *env, uint32_t timeout);
+typedef uint8_t (* LinIOTransaction  )(void *env, tLinData *linData, uint32_t timeout);
 
 typedef struct {
     void *env;
-    LinIOTransaction runCommand;
-    LinIOTransaction getCommand;
-} tLinIO;
+    LinIOTransaction receivedCommand;
+    LinIOTransaction transmitCommand;
+} tSerialPortLinIO;
 
 
 #endif //MODULE_LINIO_H