-Copyright (C) 2018 Intel Corporation
-Author: Sakari Ailus <sakari.ailus@linux.intel.com>
-
+.. SPDX-License-Identifier: GPL-2.0
+.. include:: <isonum.txt>
+===================================
Referencing hierarchical data nodes
------------------------------------
+===================================
+
+:Copyright: |copy| 2018 Intel Corporation
+:Author: Sakari Ailus <sakari.ailus@linux.intel.com>
ACPI in general allows referring to device objects in the tree only.
Hierarchical data extension nodes may not be referred to directly, hence this
Example
--------
+=======
- In the ASL snippet below, the "reference" _DSD property [2] contains a
- device object reference to DEV0 and under that device object, a
- hierarchical data extension key "node@1" referring to the NOD1 object
- and lastly, a hierarchical data extension key "anothernode" referring to
- the ANOD object which is also the final target node of the reference.
+In the ASL snippet below, the "reference" _DSD property [2] contains a
+device object reference to DEV0 and under that device object, a
+hierarchical data extension key "node@1" referring to the NOD1 object
+and lastly, a hierarchical data extension key "anothernode" referring to
+the ANOD object which is also the final target node of the reference.
+::
Device (DEV0)
{
})
}
-Please also see a graph example in graph.txt .
+Please also see a graph example in :doc:`graph`.
References
-----------
+==========
[1] Hierarchical Data Extension UUID For _DSD.
- <URL:http://www.uefi.org/sites/default/files/resources/_DSD-hierarchical-data-extension-UUID-v1.1.pdf>,
- referenced 2018-07-17.
+<http://www.uefi.org/sites/default/files/resources/_DSD-hierarchical-data-extension-UUID-v1.1.pdf>,
+referenced 2018-07-17.
[2] Device Properties UUID For _DSD.
- <URL:http://www.uefi.org/sites/default/files/resources/_DSD-device-properties-UUID.pdf>,
- referenced 2016-10-04.
+<http://www.uefi.org/sites/default/files/resources/_DSD-device-properties-UUID.pdf>,
+referenced 2016-10-04.