— Toshiba HCI
To compile this driver into the kernel, place the following line in your kernel
Alternatively, to load the driver as a module at boot time, place the following
line in loader.conf(5)
HCI is Toshiba's Hardware Control Interface
which is somewhat
uniform across their models. The acpi_toshiba
the user to manipulate HCI-controlled hardware using a number of
The following sysctls are currently implemented:
- Causes active cooling to be forcibly enabled
1’) or disabled
0’) regardless of the current
- Sets the active display to use according to a bitwise OR of
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.
- No display
- Makes the LCD backlight brighter or dimmer (higher values
- Turns the LCD backlight on and off.
- 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.
tunable enables or
disables the function keys on the keyboard. Function keys are enabled by
This behaviour can be changed at the loader(8)
prompt or in
driver first appeared in
driver was written by
manual page was written by Philip Paeps