--- /dev/null
+#ifndef MODBUS_H__
+#define MODBUS_H__ 1
+
+/*
+ * Loosely modelled after AVR-RS485 by Yoshinori Kohyama (http://algobit.jp/),
+ * available at https://github.com/kohyama/AVR-RS485/
+ *
+ * All bugs by Jan "Yenya" Kasprzak <kas@fi.muni.cz> :-)
+ */
+
+void modbus_init();
+void modbus_poll();
+
+#endif /* MODBUS_H__ */