Index: uspace/lib/c/include/devman.h
===================================================================
--- uspace/lib/c/include/devman.h	(revision 9a426d1f629f275455938b21d553365bb5146fb0)
+++ uspace/lib/c/include/devman.h	(revision aff587ffd456eec701b28134f8ec9a4e58c66001)
@@ -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 *);
Index: uspace/lib/c/include/ipc/devman.h
===================================================================
--- uspace/lib/c/include/ipc/devman.h	(revision 9a426d1f629f275455938b21d553365bb5146fb0)
+++ uspace/lib/c/include/ipc/devman.h	(revision aff587ffd456eec701b28134f8ec9a4e58c66001)
@@ -139,9 +139,14 @@
 	DEVMAN_ADD_MATCH_ID,
 	DEVMAN_ADD_DEVICE_TO_CATEGORY,
+	DEVMAN_DRV_FUN_ONLINE,
+	DEVMAN_DRV_FUN_OFFLINE,
 	DEVMAN_REMOVE_FUNCTION
 } driver_to_devman_t;
 
 typedef enum {
-	DRIVER_ADD_DEVICE = IPC_FIRST_USER_METHOD
+	DRIVER_DEV_ADD = IPC_FIRST_USER_METHOD,
+	DRIVER_DEV_REMOVE,
+	DRIVER_FUN_ONLINE,
+	DRIVER_FUN_OFFLINE,
 
 } devman_to_driver_t;
@@ -152,4 +157,6 @@
 	DEVMAN_FUN_GET_CHILD,
 	DEVMAN_FUN_GET_NAME,
+	DEVMAN_FUN_ONLINE,
+	DEVMAN_FUN_OFFLINE,
 	DEVMAN_FUN_GET_PATH,
 	DEVMAN_FUN_SID_TO_HANDLE