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+.. SPDX-License-Identifier: GPL-2.0-only
+
+==============================
+WMI embedded Binary MOF driver
+==============================
+
+Introduction
+============
+
+Many machines embed WMI Binary MOF (Managed Object Format) metadata used to
+describe the details of their ACPI WMI interfaces. The data can be decoded
+with tools like `bmfdec <https://github.com/pali/bmfdec>`_ to obtain a
+human readable WMI interface description, which is useful for developing
+new WMI drivers.
+
+The Binary MOF data can be retrieved from the ``bmof`` sysfs attribute of the
+associated WMI device. Please note that multiple WMI devices containing Binary
+MOF data can exist on a given system.
+
+WMI interface
+=============
+
+The Binary MOF WMI device is identified by the WMI GUID ``05901221-D566-11D1-B2F0-00A0C9062910``.
+The Binary MOF can be obtained by doing a WMI data block query. The result is
+then returned as an ACPI buffer with a variable size.