diff --git a/include/file_operations.h b/include/file_operations.h
new file mode 100644
index 0000000..e17a4d5
--- /dev/null
+++ b/include/file_operations.h
@@ -0,0 +1,6 @@
+#ifndef __FILE_OPERATIONS_H__
+#define __FILE_OPERATIONS_H__
+
+
+
+#endif
\ No newline at end of file
diff --git a/output/main b/output/main
index cc58852..4680260 100755
Binary files a/output/main and b/output/main differ
diff --git a/src/main.c b/src/main.c
index d10cc0e..7295927 100644
--- a/src/main.c
+++ b/src/main.c
@@ -11,12 +11,13 @@
 #include "users.h"
 #include "tui.h"
 #include "rfid_handler.h"
+#include "file_operations.h"
 
 int main(int argc, char const **argv)
 {
-    if (argc != 1)
+    if (argc != 2)
     {
-        printf("Usage: %s <Address of RFID reader>\n", argv[0]);
+        printf("filename argument required\nUsage: %s [User database]\n", argv[0]);
         return EXIT_FAILURE;
     }
 
@@ -45,8 +46,7 @@ int main(int argc, char const **argv)
     erase();
     refresh();
 
-    // uartDialog(uart_address, x_max, y_max);
-    strcpy(uart_address, argv[1]);
+    uartDialog(uart_address, x_max, y_max);
 
     pthread_create(&uart_thread, NULL, uartListener, uart_address);
 
diff --git a/src/users.c b/src/users.c
index 3a384e6..68a9d0e 100644
--- a/src/users.c
+++ b/src/users.c
@@ -48,7 +48,7 @@ int addPersonToList(
     if (*_head == NULL)
     {
         *_head = new_node;
-        return;
+        return 0;
     }
 
     node_t *current = *_head;
@@ -58,5 +58,5 @@ int addPersonToList(
     }
     current->next = new_node;
 
-    return 0;
+    return 1;
 }
\ No newline at end of file