.\" Copyright (c) 2005 Christian Brueffer
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.\" $FreeBSD$
.\"
.Dd May 7, 2005
.Dt ACPI_IBM 4 i386
.Os
.Sh NAME
.Nm acpi_ibm
.Nd "ACPI hotkey driver for IBM laptops"
.Sh SYNOPSIS
.Cd "device acpi_ibm"
.Sh DESCRIPTION
The
.Nm
driver provides support for the hotkeys of IBM laptops.
The main purpose of this driver is to provide an interface,
accessible via
.Xr sysctl 8 ,
through which applications can determine the status of
various laptop components.
.Sh SYSCTLS
The following sysctls are currently implemented:
.Bl -tag -width indent
.It Va dev.acpi_ibm.0.key_mask
Current key mask.
.It Va dev.acpi_ibm.0.version
(read-only) Interface version of the
.Nm
driver.
.It Va dev.acpi_ibm.0.avail_mask
(read-only) Available key mask.
.It Va dev.acpi_ibm.0.enable
Toggle
.Nm
driver activity.
.It Va dev.acpi_ibm.0.misckey
(read-only) Status of the misc button.
.It Va dev.acpi_ibm.0.brightness
(read-only) Current brightness level of the display.
.It Va dev.acpi_ibm.0.volume
(read-only) Speaker volume.
.It Va dev.acpi_ibm.0.mute
(read-only) Indicates, whether the speakers are muted or not.
.It Va dev.acpi_ibm.0.keylight
(read-only) Indicates, whether the ThinkLight keyboard light is activated or not.
.It Va dev.acpi_ibm.0.bluetooth
Toggle Bluetooth chip activity.
.It Va dev.acpi_ibm.0.wlan
Toggle WLAN chip activity.
.Sh SEE ALSO
.Xr acpi 4 ,
.Xr sysctl 8
.Sh HISTORY
The
.Nm
device driver first appeared in
.Fx 5.5 .
.Sh AUTHORS
The
.Nm
driver was written by
.An Takanori Watanabe Aq takawata@FreeBSD.org .
This manual page was written by
.An Christian Brueffer Aq brueffer@FreeBSD.org .