--- /dev/null
+/*
+ * driver.h Driver-specific code.
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version
+ * 2 of the License, or (at your option) any later version.
+ *
+ * Authors: Vitalii Demianets <vitas@nppfactor.kiev.ua>
+ */
+
+#ifndef _MSTP_DRIVER_H
+#define _MSTP_DRIVER_H
+
+int driver_set_new_state(per_tree_port_t *ptp, int new_state);
+
+#endif /* _MSTP_DRIVER_H */