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):
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 ⟨aizu@navi.org⟩. This
manual page was written by
Philip Paeps
⟨philip@FreeBSD.org⟩.