2 .\" Copyright (c) 2004 Philip Paeps <philip@FreeBSD.org>
3 .\" All rights reserved.
5 .\" Redistribution and use in source and binary forms, with or without
6 .\" modification, are permitted provided that the following conditions
8 .\" 1. Redistributions of source code must retain the above copyright
9 .\" notice, this list of conditions and the following disclaimer.
10 .\" 2. Redistributions in binary form must reproduce the above copyright
11 .\" notice, this list of conditions and the following disclaimer in the
12 .\" documentation and/or other materials provided with the distribution.
14 .\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 .\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 .\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 .\" ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 .\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 .\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 .\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 .\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 .\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 .\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 .Nd Asus Laptop Extras
35 To compile this driver into the kernel,
36 place the following line in your
37 kernel configuration file:
38 .Bd -ragged -offset indent
39 .Cd "device acpi_asus"
42 Alternatively, to load the driver as a
43 module at boot time, place the following line in
45 .Bd -literal -offset indent
51 driver provides support for the extra ACPI-controlled gadgets, such as hotkeys
52 and leds, found on recent Asus (and Medion) laptops.
53 It allows one to use the
55 interface to manipulate the brightness of the LCD panel and the display output
57 Hotkey events are passed to
59 for easy handling in userspace.
61 Currently, the following Asus laptops are fully supported:
63 .Bl -item -offset indent -compact
118 also supports the Asus-compatible
124 The following sysctls are currently implemented:
125 .Bl -tag -width indent
126 .It Va hw.acpi.asus.lcd_brightness
127 Makes the LCD backlight brighter or dimmer (higher values are brighter).
128 .It Va hw.acpi.asus.lcd_backlight
129 Turns the LCD backlight on or off.
130 .It Va hw.acpi.asus.video_output
131 Sets the active display to use according to a bitwise OR of the following:
133 .Bl -tag -width indent -compact
144 Some models also support video switching via the generic
147 Most models do not, however.
150 Defaults for these variables can be set in
152 which is parsed at boot-time.
159 .%T The acpi4asus Project
160 .%O http://sourceforge.net/projects/acpi4asus/
165 driver first appeared in
171 driver and this manual page were written by
172 .An Philip Paeps Aq philip@FreeBSD.org .
174 Inspiration came from the
175 .Em acpi4asus project
178 which maintains a driver implementing this