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>.

Debian                                          February 8, 2010                                 ACPI_TOSHIBA(4)