Documentation/wmi/devices/wmi-bmof.rst
.. SPDX-License-Identifier: GPL-2.0-only
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.
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.