ACPI_TOSHIBA(4)

NAME

     acpi_toshiba -- Toshiba HCI interface

SYNOPSIS

     device acpi_toshiba

DESCRIPTION

     HCI is Toshiba's Hardware Control Interface which is somewhat uniform
     across their models.  The acpi_toshiba driver allows the user to manipu-
     late HCI-controlled hardware using a number of sysctl(8) variables.

SYSCTLS

     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 func-
	     tionality 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.

TUNABLES

     The hw.acpi.toshiba.enable_fn_keys tunable enables or disables the func-
     tion 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>.