Added basic logging

barcode_service/barcode_service.c

@@ -1,6 +1,5 @@
 #include <argp.h>
 #include <linux/input.h>
-//#include <linux/input-event-codes.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -53,6 +52,7 @@ main(int argc, char **argv)
     {
       fprintf(stderr, "Sending barcode failed!\n");
     }
+    printf("Published barcode %s!\n", barcode);
     free(barcode);
   }
 }