Index: uspace/lib/libc/include/ipc/devmap.h
===================================================================
--- uspace/lib/libc/include/ipc/devmap.h	(revision 7fcb74c4d9363ba196a35dcae007d72b97bb73da)
+++ uspace/lib/libc/include/ipc/devmap.h	(revision 3f29834eb51939e4c9b85b216b52106b8ae5f5df)
@@ -43,14 +43,23 @@
 
 typedef enum {
+	DEV_HANDLE_NONE,
+	DEV_HANDLE_NAMESPACE,
+	DEV_HANDLE_DEVICE
+} devmap_handle_type_t;
+
+typedef enum {
 	DEVMAP_DRIVER_REGISTER = IPC_FIRST_USER_METHOD,
 	DEVMAP_DRIVER_UNREGISTER,
 	DEVMAP_DEVICE_REGISTER,
 	DEVMAP_DEVICE_UNREGISTER,
-	DEVMAP_DEVICE_GET_NAME,
 	DEVMAP_DEVICE_GET_HANDLE,
-	DEVMAP_DEVICE_NULL_CREATE,
-	DEVMAP_DEVICE_NULL_DESTROY,
-	DEVMAP_DEVICE_GET_COUNT,
-	DEVMAP_DEVICE_GET_DEVICES
+	DEVMAP_NAMESPACE_GET_HANDLE,
+	DEVMAP_HANDLE_PROBE,
+	DEVMAP_NULL_CREATE,
+	DEVMAP_NULL_DESTROY,
+	DEVMAP_GET_NAMESPACE_COUNT,
+	DEVMAP_GET_DEVICE_COUNT,
+	DEVMAP_GET_NAMESPACES,
+	DEVMAP_GET_DEVICES
 } devmap_request_t;