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1# SPDX-License-Identifier: GPL-2.0-or-later
2#
3# ACPI WMI Core
4#
5
6menuconfig ACPI_WMI
7 tristate "ACPI-WMI support"
8 depends on ACPI && X86
9 help
10 This option enables support for the ACPI-WMI driver core.
11
12 The ACPI-WMI interface is a proprietary extension of ACPI allowing
13 the platform firmware to expose WMI (Windows Management Instrumentation)
14 objects used for managing various aspects of the underlying system.
15 Mapping between ACPI control methods and WMI objects happens through
16 special mapper devices (PNP0C14) defined inside the ACPI tables.
17
18 Enabling this option is necessary for building the vendor specific
19 ACPI-WMI client drivers for Acer, Dell an HP machines (among others).
20
21 It is safe to enable this option even for machines that do not contain
22 any ACPI-WMI mapper devices at all.
23
24if ACPI_WMI
25
26config ACPI_WMI_LEGACY_DEVICE_NAMES
27 bool "Use legacy WMI device naming scheme"
28 help
29 Say Y here to force the WMI driver core to use the old WMI device naming
30 scheme when creating WMI devices. Doing so might be necessary for some
31 userspace applications but will cause the registration of WMI devices with
32 the same GUID to fail in some corner cases.
33
34endif # ACPI_WMI