freebsd-nq/share/man/man4/acpi_asus.4

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.\"
.\" Copyright (c) 2004 Philip Paeps <philip@FreeBSD.org>
.\" All rights reserved.
.\"
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.\" modification, are permitted provided that the following conditions
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.\" notice, this list of conditions and the following disclaimer.
.\" 2. Redistributions in binary form must reproduce the above copyright
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.\" $FreeBSD$
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.Dd February 8, 2010
.Dt ACPI_ASUS 4
.Os
.Sh NAME
.Nm acpi_asus
.Nd Asus Laptop Extras
.Sh SYNOPSIS
To compile this driver into the kernel,
place the following line in your
kernel configuration file:
.Bd -ragged -offset indent
.Cd "device acpi_asus"
.Ed
.Pp
Alternatively, to load the driver as a
module at boot time, place the following line in
.Xr loader.conf 5 :
.Bd -literal -offset indent
acpi_asus_load="YES"
.Ed
.Sh DESCRIPTION
The
.Nm
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
.Xr sysctl 8
interface to manipulate the brightness of the LCD panel and the display output
state.
Hotkey events are passed to
.Xr devd 8
for easy handling in userspace with the default configuration in
.Pa /etc/devd/asus.conf .
.Pp
2004-11-05 08:03:34 +00:00
Currently, the following Asus laptops are fully supported:
.Pp
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.Bl -item -offset indent -compact
.It
xxN
.It
A1x
.It
A2x
.It
A3N
.It
A4D
.It
A6VM
.It
D1x
.It
J1x
.It
L2B
.It
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L2D
.It
L2E
.It
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L3C
.It
L3D
.It
L3H
.It
L4E
.It
L4R
.It
L5x
.It
L8x
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.It
M1A
.It
M2E
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.It
M6N
.It
M6R
.It
S1x
.It
S2x
.It
V6V
.It
W5A
2008-08-20 12:36:53 +00:00
.It
Eee PC
.El
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.Pp
Additionally,
.Nm
also supports the Asus-compatible
.Em ATK0100
interface found in
.Em Samsung P30/P35
laptops.
.Sh SYSCTL VARIABLES
The following sysctls are currently implemented:
.Bl -tag -width indent
.It Va hw.acpi.asus.lcd_brightness
Makes the LCD backlight brighter or dimmer (higher values are brighter).
.It Va hw.acpi.asus.lcd_backlight
Turns the LCD backlight on or off.
.It Va hw.acpi.asus.video_output
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Sets the active display to use according to a bitwise OR of the following:
.Pp
.Bl -tag -width indent -compact
.It Li 0
No display
.It Li 1
LCD
.It Li 2
CRT
.It Li 4
TV-Out
.El
.Pp
Some models also support video switching via the generic
.Xr acpi_video 4
driver.
2004-07-06 16:24:02 +00:00
Most models do not, however.
.El
.Pp
Defaults for these variables can be set in
.Xr sysctl.conf 5 ,
which is parsed at boot-time.
.Sh SEE ALSO
.Xr acpi 4 ,
.Xr acpi_video 4 ,
.Xr sysctl.conf 5 ,
.Xr sysctl 8
.Rs
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.%T The acpi4asus Project
2010-01-15 16:01:22 +00:00
.%U http://sourceforge.net/projects/acpi4asus/
.Re
.Sh HISTORY
The
.Nm
driver first appeared in
.Fx 5.3 .
.Sh AUTHORS
.An -nosplit
The
.Nm
driver and this manual page were written by
.An Philip Paeps Aq philip@FreeBSD.org .
.Pp
2004-07-02 19:07:33 +00:00
Inspiration came from the
.Em acpi4asus project
2004-07-06 16:24:02 +00:00
started by
.An Julien Lerouge
which maintains a driver implementing this
functionality in the
.Tn Linux
kernel.