1.\" 2.\" Copyright (c) 2003 Philip Paeps <philip@FreeBSD.org> 3.\" All rights reserved. 4.\" 5.\" Redistribution and use in source and binary forms, with or without 6.\" modification, are permitted provided that the following conditions 7.\" are met: 8.\" 1. Redistributions of source code must retain the above copyright 9.\" notice, this list of conditions and the following disclaimer. 10.\" 2. Redistributions in binary form must reproduce the above copyright 11.\" notice, this list of conditions and the following disclaimer in the 12.\" documentation and/or other materials provided with the distribution. 13.\" 14.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17.\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24.\" SUCH DAMAGE. 25.\" 26.\" $FreeBSD$ 27.\" 28.Dd February 19, 2004 29.Dt ACPI_TOSHIBA 4 i386 30.Os 31.Sh NAME 32.Nm acpi_toshiba 33.Nd Toshiba HCI interface 34.Sh SYNOPSIS 35To compile this driver into the kernel, 36place the following line in your 37kernel configuration file: 38.Bd -ragged -offset indent 39.Cd "device acpi_toshiba" 40.Ed 41.Pp 42Alternatively, to load the driver as a 43module at boot time, place the following line in 44.Xr loader.conf 5 : 45.Bd -literal -offset indent 46acpi_toshiba_load="YES" 47.Ed 48.Sh DESCRIPTION 49HCI is Toshiba's 50.Em "Hardware Control Interface" 51which is somewhat uniform across their models. 52The 53.Nm 54driver allows the user to manipulate HCI-controlled hardware using a number of 55.Xr sysctl 8 56variables. 57.Sh SYSCTL VARIABLES 58The following sysctls are currently implemented: 59.Bl -tag -width indent 60.It Va hw.acpi.toshiba.force_fan 61Causes active cooling to be forcibly enabled 62.Pq Ql 1 63or disabled 64.Pq Ql 0 65regardless of the current temperature. 66.It Va hw.acpi.toshiba.video_output 67Sets the active display to use according to a bitwise OR of the following: 68.Pp 69.Bl -tag -width indent -compact 70.It Li 0 71No display 72.It Li 1 73LCD 74.It Li 2 75CRT 76.It Li 4 77TV-Out 78.El 79.Pp 80Only some systems (i.e., the Libretto L5) support video switching via 81this hardware-specific driver. 82Use the 83.Xr acpi_video 4 84driver for generic video output support. 85.It Va hw.acpi.toshiba.lcd_brightness 86Makes the LCD backlight brighter or dimmer (higher values are brighter). 87.It Va hw.acpi.toshiba.lcd_backlight 88Turns the LCD backlight on and off. 89.It Va hw.acpi.toshiba.cpu_speed 90Sets the CPU speed to the specified speed. 91This provides functionality similar to the 92.Va hw.acpi.cpu.throttle_state 93variable. 94Higher sysctl values mean lower CPU speeds. 95.El 96.Pp 97Defaults for these variables can be set in 98.Xr sysctl.conf 5 , 99which is parsed at boot-time. 100.Sh LOADER TUNABLES 101The 102.Va hw.acpi.toshiba.enable_fn_keys 103tunable enables or disables the function keys on the keyboard. 104Function keys are enabled by default. 105.Pp 106This behaviour can be changed at the 107.Xr loader 8 108prompt or in 109.Xr loader.conf 5 . 110.Sh SEE ALSO 111.Xr acpi 4 , 112.Xr acpi_video 4 , 113.Xr loader.conf 5 , 114.Xr sysctl.conf 5 , 115.Xr sysctl 8 116.Sh HISTORY 117The 118.Nm 119driver first appeared in 120.Fx 5.1 . 121.Sh AUTHORS 122.An -nosplit 123The 124.Nm 125driver was written by 126.An Hiroyuki Aizu Aq aizu@navi.org . 127This manual page was written by 128.An Philip Paeps Aq philip@FreeBSD.org . 129