Index: uspace/lib/libc/generic/devmap.c
===================================================================
--- uspace/lib/libc/generic/devmap.c	(revision bfd247f3d820ea49d8e1806e1e6e0c28b694ba0e)
+++ uspace/lib/libc/generic/devmap.c	(revision c063d96e697d575d95acdcf12a82fa94719306b0)
@@ -219,4 +219,29 @@
 }
 
+int devmap_null_create(void)
+{
+	int phone = devmap_get_phone(DEVMAP_CLIENT, IPC_FLAG_BLOCKING);
+	
+	if (phone < 0)
+		return -1;
+	
+	ipcarg_t null_id;
+	int retval = async_req_0_1(phone, DEVMAP_DEVICE_NULL_CREATE, &null_id);
+	if (retval != EOK)
+		return -1;
+	
+	return (int) null_id;
+}
+
+void devmap_null_destroy(int null_id)
+{
+	int phone = devmap_get_phone(DEVMAP_CLIENT, IPC_FLAG_BLOCKING);
+	
+	if (phone < 0)
+		return;
+	
+	async_req_1_0(phone, DEVMAP_DEVICE_NULL_DESTROY, (ipcarg_t) null_id);
+}
+
 ipcarg_t devmap_device_get_count(void)
 {
Index: uspace/lib/libc/include/devmap.h
===================================================================
--- uspace/lib/libc/include/devmap.h	(revision bfd247f3d820ea49d8e1806e1e6e0c28b694ba0e)
+++ uspace/lib/libc/include/devmap.h	(revision c063d96e697d575d95acdcf12a82fa94719306b0)
@@ -48,4 +48,7 @@
 extern int devmap_device_connect(dev_handle_t, unsigned int);
 
+extern int devmap_null_create(void);
+extern void devmap_null_destroy(int);
+
 extern ipcarg_t devmap_device_get_count(void);
 extern ipcarg_t devmap_device_get_devices(ipcarg_t, dev_desc_t *);
Index: uspace/lib/libc/include/ipc/devmap.h
===================================================================
--- uspace/lib/libc/include/ipc/devmap.h	(revision bfd247f3d820ea49d8e1806e1e6e0c28b694ba0e)
+++ uspace/lib/libc/include/ipc/devmap.h	(revision c063d96e697d575d95acdcf12a82fa94719306b0)
@@ -29,5 +29,5 @@
 /** @addtogroup devmap
  * @{
- */ 
+ */
 
 #ifndef DEVMAP_DEVMAP_H_
@@ -49,4 +49,6 @@
 	DEVMAP_DEVICE_GET_NAME,
 	DEVMAP_DEVICE_GET_HANDLE,
+	DEVMAP_DEVICE_NULL_CREATE,
+	DEVMAP_DEVICE_NULL_DESTROY,
 	DEVMAP_DEVICE_GET_COUNT,
 	DEVMAP_DEVICE_GET_DEVICES