CONFIG_ACPI_WMI: WMI

General informations

The Linux kernel configuration item CONFIG_ACPI_WMI has multiple definitions:

WMI found in drivers/platform/x86/Kconfig

The configuration item CONFIG_ACPI_WMI:

• prompt: WMI
• type: tristate
• depends on: CONFIG_ACPI
• defined in drivers/platform/x86/Kconfig
• found in Linux kernels: 2.6.29–2.6.39, 3.0–3.19, 4.0–4.20, 5.0–5.19, 6.0–6.17, 6.18-rc+HEAD
• modules built: wmi, wmi

Help text

This driver adds support for the ACPI-WMI (Windows Management Instrumentation) mapper device (PNP0C14) found on some systems.

ACPI-WMI is a proprietary extension to ACPI to expose parts of the ACPI firmware to userspace - this is done through various vendor defined methods and data blocks in a PNP0C14 device, which are then made available for userspace to call.

The implementation of this in Linux currently only exposes this to other kernel space drivers.

This driver is a required dependency to build the firmware specific drivers needed on many machines, including Acer and HP laptops.

It is safe to enable this driver even if your DSDT doesn't define any ACPI-WMI devices.

WMI (EXPERIMENTAL) found in drivers/acpi/Kconfig

The configuration item CONFIG_ACPI_WMI:

• prompt: WMI (EXPERIMENTAL)
• type: tristate
• depends on: ( CONFIG_X86 ) && ( CONFIG_EXPERIMENTAL )
• defined in drivers/acpi/Kconfig
• found in Linux kernels: 2.6.25–2.6.28
• modules built: wmi, wmi

Help text

This driver adds support for the ACPI-WMI (Windows Management Instrumentation) mapper device (PNP0C14) found on some systems.

ACPI-WMI is a proprietary extension to ACPI to expose parts of the ACPI firmware to userspace - this is done through various vendor defined methods and data blocks in a PNP0C14 device, which are then made available for userspace to call.

The implementation of this in Linux currently only exposes this to other kernel space drivers.

This driver is a required dependency to build the firmware specific drivers needed on many machines, including Acer and HP laptops.

It is safe to enable this driver even if your DSDT doesn't define any ACPI-WMI devices.

Hardware

LKDDb

Raw data from LKDDb:

• lkddb acpi "PNP0C14" : CONFIG_ACPI CONFIG_ACPI_WMI : drivers/acpi/wmi.c # in 2.6.25–2.6.28
• lkddb acpi "PNP0C14" : CONFIG_ACPI_WMI CONFIG_X86 : drivers/platform/x86/wmi.c # in 2.6.29–2.6.39, 3.0–3.19, 4.0–4.20, 5.0–5.19, 6.0–6.17, 6.18-rc+HEAD
• lkddb acpi "pnp0c14" : CONFIG_ACPI CONFIG_ACPI_WMI : drivers/acpi/wmi.c # in 2.6.25–2.6.28
• lkddb acpi "pnp0c14" : CONFIG_ACPI_WMI CONFIG_X86 : drivers/platform/x86/wmi.c # in 2.6.29–2.6.39, 3.0–3.19, 4.0–4.20, 5.0–5.19, 6.0–6.17, 6.18-rc+HEAD
• lkddb module wmi CONFIG_ACPI_WMI : drivers/acpi/Kconfig : "WMI (EXPERIMENTAL)" # in 2.6.25–2.6.28
• lkddb module wmi CONFIG_ACPI_WMI : drivers/platform/x86/Kconfig : "WMI" # in 2.6.29–2.6.39, 3.0–3.19, 4.0–4.20, 5.0–5.19, 6.0–6.17, 6.18-rc+HEAD
• lkddb platform "acpi-wmi" : CONFIG_ACPI_WMI CONFIG_X86 : drivers/platform/x86/wmi.c # in 4.13–4.20, 5.0–5.19, 6.0–6.17, 6.18-rc+HEAD

Sources

This page is automaticly generated with free (libre, open) software lkddb(see lkddb-sources).

The data is retrived from:

• Linux kernel
• Linux Kernel Driver DataBase (LKDDb)

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