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129 lines
3.7 KiB
Groff
129 lines
3.7 KiB
Groff
.\"
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.\" Copyright (c) 2003 Philip Paeps <philip@FreeBSD.org>
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.\" All rights reserved.
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.\"
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.\" Redistribution and use in source and binary forms, with or without
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.\" modification, are permitted provided that the following conditions
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.\" are met:
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.\" 1. Redistributions of source code must retain the above copyright
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.\" notice, this list of conditions and the following disclaimer.
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.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" notice, this list of conditions and the following disclaimer in the
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.\" documentation and/or other materials provided with the distribution.
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.\"
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.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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.\" SUCH DAMAGE.
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.\"
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.\" $FreeBSD$
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.\"
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.Dd February 19, 2004
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.Dt ACPI_TOSHIBA 4 i386
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.Os
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.Sh NAME
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.Nm acpi_toshiba
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.Nd Toshiba HCI interface
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.Sh SYNOPSIS
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To compile this driver into the kernel,
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place the following line in your
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kernel configuration file:
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.Bd -ragged -offset indent
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.Cd "device acpi_toshiba"
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.Ed
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.Pp
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Alternatively, to load the driver as a
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module at boot time, place the following line in
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.Xr loader.conf 5 :
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.Bd -literal -offset indent
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acpi_toshiba_load="YES"
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.Ed
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.Sh DESCRIPTION
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HCI is Toshiba's
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.Em "Hardware Control Interface"
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which is somewhat uniform across their models.
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The
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.Nm
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driver allows the user to manipulate HCI-controlled hardware using a number of
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.Xr sysctl 8
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variables.
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.Sh SYSCTL VARIABLES
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The following sysctls are currently implemented:
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.Bl -tag -width indent
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.It Va hw.acpi.toshiba.force_fan
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Causes active cooling to be forcibly enabled
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.Pq Ql 1
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or disabled
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.Pq Ql 0
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regardless of the current temperature.
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.It Va hw.acpi.toshiba.video_output
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Sets the active display to use according to a bitwise OR of the following:
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.Pp
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.Bl -tag -width indent -compact
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.It Li 0
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No display
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.It Li 1
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LCD
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.It Li 2
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CRT
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.It Li 4
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TV-Out
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.El
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.Pp
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Only some systems (i.e., the Libretto L5) support video switching via
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this hardware-specific driver.
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Use the
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.Xr acpi_video 4
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driver for generic video output support.
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.It Va hw.acpi.toshiba.lcd_brightness
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Makes the LCD backlight brighter or dimmer (higher values are brighter).
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.It Va hw.acpi.toshiba.lcd_backlight
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Turns the LCD backlight on and off.
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.It Va hw.acpi.toshiba.cpu_speed
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Sets the CPU speed to the specified speed.
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This provides functionality similar to the
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.Va hw.acpi.cpu.throttle_state
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variable.
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Higher sysctl values mean lower CPU speeds.
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.El
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.Pp
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Defaults for these variables can be set in
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.Xr sysctl.conf 5 ,
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which is parsed at boot-time.
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.Sh LOADER TUNABLES
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The
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.Va hw.acpi.toshiba.enable_fn_keys
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tunable enables or disables the function keys on the keyboard.
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Function keys are enabled by default.
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.Pp
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This behaviour can be changed at the
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.Xr loader 8
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prompt or in
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.Xr loader.conf 5 .
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.Sh SEE ALSO
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.Xr acpi 4 ,
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.Xr acpi_video 4 ,
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.Xr loader.conf 5 ,
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.Xr sysctl.conf 5 ,
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.Xr sysctl 8
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.Sh HISTORY
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The
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.Nm
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driver first appeared in
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.Fx 5.1 .
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.Sh AUTHORS
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.An -nosplit
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The
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.Nm
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driver was written by
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.An Hiroyuki Aizu Aq aizu@navi.org .
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This manual page was written by
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.An Philip Paeps Aq philip@FreeBSD.org .
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