acpi_toshiba4

Usage

Overview

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).