acpi_asus (4)

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Copyright (c) 2004 Philip Paeps <philip@FreeBSD.org>
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
   notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
   notice, this list of conditions and the following disclaimer in the
   docum...

(The comments found at the beginning of the groff file "man4/acpi_asus.4freebsd".)

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.conf5:

acpi_asus_load="YES"

DESCRIPTION

The driver provides support for the extra ACPI-controlled gadgets, such as hotkeys and leds, found on recent Asus (and Medion) laptops. 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, also supports the Asus-compatible ATK0100 interface 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_video4 driver. Most models do not, however.

Defaults for these variables can be set in sysctl.conf5, which is parsed at boot-time.

SEE ALSO

acpi(4), acpi_asus_wmi4, acpi_video4, sysctl.conf5, sysctl(8)

The acpi4asus Project

HISTORY

The driver first appeared in Fx 5.3 .

AUTHORS

An -nosplit The driver and this manual page were written by An Philip Paeps Aq philip@FreeBSD.org .

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