Index: uspace/lib/c/include/devman.h
===================================================================
--- uspace/lib/c/include/devman.h	(revision 7beb220448680668678a63d26f84dedb2b14be05)
+++ uspace/lib/c/include/devman.h	(revision a347a110d7ea83c8d45c6874cb10eb949d5d595c)
@@ -50,4 +50,6 @@
     devman_handle_t, devman_handle_t *);
 extern int devman_remove_function(devman_handle_t);
+extern int devman_drv_fun_online(devman_handle_t);
+extern int devman_drv_fun_offline(devman_handle_t);
 
 extern async_sess_t *devman_device_connect(exch_mgmt_t, devman_handle_t,
@@ -63,4 +65,6 @@
 extern int devman_fun_get_name(devman_handle_t, char *, size_t);
 extern int devman_fun_get_path(devman_handle_t, char *, size_t);
+extern int devman_fun_online(devman_handle_t);
+extern int devman_fun_offline(devman_handle_t);
 
 extern int devman_add_device_to_category(devman_handle_t, const char *);