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Man Pages


Manual Reference Pages  -  ACPI_TOSHIBA (4)

NAME

acpi_toshiba - Toshiba HCI interface

CONTENTS

Synopsis
Description
Sysctl Variables
Loader Tunables
See Also
History
Authors

SYNOPSIS

To compile this driver into the kernel, place the following line in your kernel configuration file:


.Cd device acpi_toshiba

Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):

acpi_toshiba_load="YES"

DESCRIPTION

HCI is Toshiba’s Hardware Control Interface which is somewhat uniform across their models. The acpi_toshiba driver allows the user to manipulate HCI-controlled hardware using a number of sysctl(8) variables.

SYSCTL VARIABLES

The following sysctls are currently implemented:
hw.acpi.toshiba.force_fan
  Causes active cooling to be forcibly enabled (‘1’) or disabled (‘0’) regardless of the current temperature.
hw.acpi.toshiba.video_output
  Sets the active display to use according to a bitwise OR of the following:

0 No display
1 LCD
2 CRT
4 TV-Out

Only some systems (i.e., the Libretto L5) support video switching via this hardware-specific driver. Use the acpi_video(4) driver for generic video output support.
hw.acpi.toshiba.lcd_brightness
  Makes the LCD backlight brighter or dimmer (higher values are brighter).
hw.acpi.toshiba.lcd_backlight
  Turns the LCD backlight on and off.
hw.acpi.toshiba.cpu_speed
  Sets the CPU speed to the specified speed. This provides functionality similar to the hw.acpi.cpu.throttle_state variable. Higher sysctl values mean lower CPU speeds.

Defaults for these variables can be set in sysctl.conf(5), which is parsed at boot-time.

LOADER TUNABLES

The hw.acpi.toshiba.enable_fn_keys tunable enables or disables the function keys on the keyboard. Function keys are enabled by default.

This behaviour can be changed at the loader(8) prompt or in loader.conf(5).

SEE ALSO

acpi(4), acpi_video(4), loader.conf(5), sysctl.conf(5), sysctl(8)

HISTORY

The acpi_toshiba driver first appeared in
.Fx 5.1 .

AUTHORS


.An -nosplit The acpi_toshiba driver was written by
.An Hiroyuki Aizu Aq aizu@navi.org . This manual page was written by
.An Philip Paeps Aq philip@FreeBSD.org .
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