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 some
- what uniform
across their models. The acpi_toshiba driver allows the us - er 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 bit
- wise 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 dis
- ables the function keys on the keyboard. Function keys are enabled by de
- fault.
- This behaviour can be changed at the loader(8) prompt or in
loader.conf(5).
SEE ALSO
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@FreeB - SD.org>.
- BSD February 19, 2004