ACPI_TOSHIBA(4) FreeBSD Kernel Interfaces Manual ACPI_TOSHIBA(4)
NAME
acpi_toshiba - Toshiba HCI interface
SYNOPSIS
To compile this driver into the kernel, place the following line in your
kernel configuration file:
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 FreeBSD 5.1.
AUTHORS
The acpi_toshiba driver was written by Hiroyuki Aizu <
[email protected]>.
This manual page was written by Philip Paeps <
[email protected]>.
FreeBSD 14.1-RELEASE-p8 February 8, 2010 FreeBSD 14.1-RELEASE-p8