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ACPI_ASUS(4)	     FreeBSD/i386 Kernel Interfaces Manual	  ACPI_ASUS(4)

NAME
     acpi_asus -- Asus Laptop Extras

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

	   device acpi_asus

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

	   acpi_asus_load="YES"

DESCRIPTION
     The acpi_asus driver provides support for the extra ACPI-controlled gad-
     gets, such	as hotkeys and leds, found on recent Asus (and Medion) lap-
     tops.  It allows one to use the sysctl(8) interface to manipulate the
     brightness	of the LCD panel and the display output	state.	Hotkey events
     are passed	to devd(8) for easy handling in	userspace with the default
     configuration in /etc/devd/asus.conf.

     Currently,	the following Asus laptops are fully supported:

	   xxN
	   A1x
	   A2x
	   A3N
	   A4D
	   A6VM
	   D1x
	   J1x
	   L2B
	   L2D
	   L2E
	   L3C
	   L3D
	   L3H
	   L4E
	   L4R
	   L5x
	   L8x
	   M1A
	   M2E
	   M6N
	   M6R
	   S1x
	   S2x
	   V6V
	   W5A
	   Eee PC

     Additionally, acpi_asus also supports the Asus-compatible ATK0100 inter-
     face found	in Samsung P30/P35 laptops.

SYSCTL VARIABLES
     The following sysctls are currently implemented:

     hw.acpi.asus.lcd_brightness
	     Makes the LCD backlight brighter or dimmer	(higher	values are
	     brighter).

     hw.acpi.asus.lcd_backlight
	     Turns the LCD backlight on	or off.

     hw.acpi.asus.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

	     Some models also support video switching via the generic
	     acpi_video(4) driver.  Most models	do not,	however.

     Defaults for these	variables can be set in	sysctl.conf(5),	which is
     parsed at boot-time.

SEE ALSO
     acpi(4), acpi_video(4), sysctl.conf(5), sysctl(8)

     The acpi4asus Project, http://sourceforge.net/projects/acpi4asus/.

HISTORY
     The acpi_asus driver first	appeared in FreeBSD 5.3.

AUTHORS
     The acpi_asus driver and this manual page were written by Philip Paeps
     <philip@FreeBSD.org>.

     Inspiration came from the acpi4asus project started by Julien Lerouge
     which maintains a driver implementing this	functionality in the Linux
     kernel.

FreeBSD	9.2		       December	17, 2008		   FreeBSD 9.2

NAME | SYNOPSIS | DESCRIPTION | SYSCTL VARIABLES | SEE ALSO | HISTORY | AUTHORS

Want to link to this manual page? Use this URL:
<http://www.freebsd.org/cgi/man.cgi?query=acpi_asus&sektion=4&manpath=FreeBSD+8.0-RELEASE>

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