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 35