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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 <aizu@navi.org>.  This manual page was
     written by Philip Paeps <philip@FreeBSD.org>.