diff -r c377a1d7767a -r ee6adf7586c1 tests/python/c_code@c_ext/cfile.xml
--- a/tests/python/c_code@c_ext/cfile.xml	Mon Oct 22 17:39:13 2012 +0200
+++ b/tests/python/c_code@c_ext/cfile.xml	Tue Oct 23 11:34:37 2012 +0200
@@ -15,7 +15,7 @@
   return val+1;
 }
 
-int Python_to_C_Call(int toC, int *fromC){
+int Python_to_C_Call(char toC, char *fromC){
   /* Code called by python should never touch to 
      variables modified by PLC thread directly
 
@@ -33,7 +33,7 @@
   return res;
 }
 
-int PLC_C_Call(int fromPLC, int *toPLC){
+int PLC_C_Call(char fromPLC, char *toPLC){
   /* PLC also have to be realy carefull not to 
      conflict with asynchronous python access */
   int res;