acpi_toshiba4freebsd
Toshiba hci interface
Usage
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"
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).
Releases
9 releases since Debian 5.0 (Lenny); the text changed 6 times.