Index: uspace/lib/c/generic/devman.c
===================================================================
--- uspace/lib/c/generic/devman.c	(revision 36e2b55baba3a1dca2bdc60427e16d91cdffae3f)
+++ uspace/lib/c/generic/devman.c	(revision c1a04886f6fc4fd68787bad7a58a1e5f594797ce)
@@ -327,4 +327,28 @@
 }
 
+int devman_drv_fun_online(devman_handle_t funh)
+{
+	async_exch_t *exch = devman_exchange_begin(DEVMAN_DRIVER);
+	if (exch == NULL)
+		return ENOMEM;
+	
+	sysarg_t retval = async_req_1_0(exch, DEVMAN_DRV_FUN_ONLINE, funh);
+	
+	devman_exchange_end(exch);
+	return (int) retval;
+}
+
+int devman_drv_fun_offline(devman_handle_t funh)
+{
+	async_exch_t *exch = devman_exchange_begin(DEVMAN_DRIVER);
+	if (exch == NULL)
+		return ENOMEM;
+	
+	sysarg_t retval = async_req_1_0(exch, DEVMAN_DRV_FUN_OFFLINE, funh);
+	
+	devman_exchange_end(exch);
+	return (int) retval;
+}
+
 async_sess_t *devman_parent_device_connect(exch_mgmt_t mgmt,
     devman_handle_t handle, unsigned int flags)
@@ -430,4 +454,28 @@
 }
 
+int devman_fun_online(devman_handle_t funh)
+{
+	async_exch_t *exch = devman_exchange_begin(DEVMAN_CLIENT);
+	if (exch == NULL)
+		return ENOMEM;
+	
+	sysarg_t retval = async_req_1_0(exch, DEVMAN_FUN_ONLINE, funh);
+	
+	devman_exchange_end(exch);
+	return (int) retval;
+}
+
+int devman_fun_offline(devman_handle_t funh)
+{
+	async_exch_t *exch = devman_exchange_begin(DEVMAN_CLIENT);
+	if (exch == NULL)
+		return ENOMEM;
+	
+	sysarg_t retval = async_req_1_0(exch, DEVMAN_FUN_OFFLINE, funh);
+	
+	devman_exchange_end(exch);
+	return (int) retval;
+}
+
 static int devman_get_handles_once(sysarg_t method, sysarg_t arg1,
     devman_handle_t *handle_buf, size_t buf_size, size_t *act_size)
Index: uspace/lib/c/include/devman.h
===================================================================
--- uspace/lib/c/include/devman.h	(revision 36e2b55baba3a1dca2bdc60427e16d91cdffae3f)
+++ uspace/lib/c/include/devman.h	(revision c1a04886f6fc4fd68787bad7a58a1e5f594797ce)
@@ -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 36e2b55baba3a1dca2bdc60427e16d91cdffae3f)
+++ uspace/lib/c/include/ipc/devman.h	(revision c1a04886f6fc4fd68787bad7a58a1e5f594797ce)
@@ -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