acpi_toshiba — Toshiba HCI interface

       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)

       HCI  is  Toshiba's  HardwareControlInterface  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.

       The acpi_toshiba driver first appeared in FreeBSD 5.1.

       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).

       acpi_toshiba — Toshiba HCI interface

acpi(4), acpi_video(4), loader.conf(5), sysctl.conf(5), sysctl(8)

       To compile this driver into the kernel, place the following line in your kernel configuration file:

             deviceacpi_toshiba

       Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):

             acpi_toshiba_load="YES"

       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.