1 .. SPDX-License-Identifier: GPL-2.0-only 2 3 ============================== 4 WMI embedded Binary MOF driver 5 ============================== 6 7 Introduction 8 ============ 9 10 Many machines embed WMI Binary MOF (Managed Object Format) metadata used to 11 describe the details of their ACPI WMI interfaces. The data can be decoded 12 with tools like `bmfdec <https://github.com/pali/bmfdec>`_ to obtain a 13 human readable WMI interface description, which is useful for developing 14 new WMI drivers. 15 16 The Binary MOF data can be retrieved from the ``bmof`` sysfs attribute of the 17 associated WMI device. Please note that multiple WMI devices containing Binary 18 MOF data can exist on a given system. 19 20 WMI interface 21 ============= 22 23 The Binary MOF WMI device is identified by the WMI GUID ``05901221-D566-11D1-B2F0-00A0C9062910``. 24 The Binary MOF can be obtained by doing a WMI data block query. The result is 25 then returned as an ACPI buffer with a variable size.
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