.\" $NetBSD: acpiwmi.4,v 1.9 2019/05/26 19:34:57 ryoon Exp $
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.\" Copyright (c) 2010 Jukka Ruohonen <jruohonen@iki.fi>
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.Dd May 27, 2019
.Dt ACPIWMI 4
.Os
.Sh NAME
.Nm acpiwmi
.Nd Windows Management Instrumentation support for
.Tn ACPI
.Sh SYNOPSIS
.Cd "acpiwmi* at acpi?"
.Cd "wmidell* at acpiwmibus?"
.Cd "wmieeepc* at acpiwmibus?"
.Cd "wmihp* at acpiwmibus?"
.Cd "wmimsi* at acpiwmibus?"
.Sh DESCRIPTION
The
.Nm
device driver provides an
.Tn ACPI
interface for Windows Management Instrumentation
.Pq Tn WMI .
The
.Tn ACPI
.Tn WMI
interface is typically used to support vendor
specific features found in various laptops.
.Pp
The following
.Tn WMI
mappings are supported:
.Bl -tag -width "wmidell " -offset indent
.It Sy wmidell
Dell laptops
.It Sy wmieeepc
Some models of Asus Eee PC
.It Sy wmihp
Hewlett-Packard laptops
.It Sy wmimsi
MSI laptops
.El
.Pp
The functionality varies from vendor to vendor.
Typically the interface is used for function and hotkey handling,
but additional features may be present.
.Sh SEE ALSO
.Xr acpi 4 ,
.Xr acpidalb 4
.Rs
.%A Microsoft Corporation
.%D December 4, 2001
.%T Windows Instrumentation: WMI and ACPI
.%U http://www.microsoft.com/whdc/system/pnppwr/wmi/wmi-acpi.mspx
.Re
.Sh HISTORY
The
.Nm
device driver appeared in
.Nx 6.0 .
.Sh AUTHORS
.An Jukka Ruohonen
.Aq Mt jruohonen@iki.fi
wrote
.Nm
and most of the mappings.
.Sh CAVEATS
While
.Tn WMI
should provide a certain degree of portability across laptop
models from a particular vendor, there is no guarantee that the mappings
are functional in all models.
.Pp
The
.Sy wmihp
driver may conflict with
.Xr hpqlb 4 .