Index: uspace/lib/device/include/devman.h
===================================================================
--- uspace/lib/device/include/devman.h	(revision edeee9ff19d63d97e85f6ecbd93e661f2b5ff66d)
+++ uspace/lib/device/include/devman.h	(revision e43acd38c0225c4fac18ac08d9da30ca442ef906)
@@ -1,4 +1,4 @@
 /*
- * Copyright (c) 2009 Jiri Svoboda
+ * Copyright (c) 2025 Jiri Svoboda
  * Copyright (c) 2010 Lenka Trochtova
  * All rights reserved.
@@ -52,4 +52,5 @@
 extern errno_t devman_drv_fun_online(devman_handle_t);
 extern errno_t devman_drv_fun_offline(devman_handle_t);
+extern errno_t devman_drv_fun_wait_stable(devman_handle_t);
 
 extern async_sess_t *devman_device_connect(devman_handle_t, unsigned int);
Index: uspace/lib/device/include/ipc/devman.h
===================================================================
--- uspace/lib/device/include/ipc/devman.h	(revision edeee9ff19d63d97e85f6ecbd93e661f2b5ff66d)
+++ uspace/lib/device/include/ipc/devman.h	(revision e43acd38c0225c4fac18ac08d9da30ca442ef906)
@@ -1,3 +1,4 @@
 /*
+ * Copyright (c) 2025 Jiri Svoboda
  * Copyright (c) 2010 Lenka Trochtova
  * All rights reserved.
@@ -147,4 +148,5 @@
 	DEVMAN_DRV_FUN_ONLINE,
 	DEVMAN_DRV_FUN_OFFLINE,
+	DEVMAN_DRV_FUN_WAIT_STABLE,
 	DEVMAN_REMOVE_FUNCTION
 } driver_to_devman_t;