Add the ACPI Asus extras driver. Provides support for cool ACPI-controled

gadgets (hotkeys, lcd, ...) on Asus laptops.  I aim to closely track the
acpi4asus project which implements these features in the Linux kernel.

If this breaks your laptop, please let me know how it does it :-)

Approved by:	njl (mentor)

1 files changed, 114 insertions, 0 deletions

diff --git a/share/man/man4/man4.i386/acpi_asus.4 b/share/man/man4/man4.i386/acpi_asus.4
new file mode 100644
index 0000000..7a96948
--- /dev/null
+++ b/share/man/man4/man4.i386/acpi_asus.4
@@ -0,0 +1,114 @@
+.\"
+.\" 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
+.\"    documentation and/or other materials provided with the distribution.
+.\"
+.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+.\" ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+.\" IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+.\" ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+.\" FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+.\" DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+.\" OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+.\" HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+.\" LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+.\" OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+.\" SUCH DAMAGE.
+.\"
+.\" $FreeBSD$
+.\"
+.Dd April 22, 2004
+.Dt ACPI_ASUS 4 i386
+.Os
+.Sh NAME
+.Nm acpi_asus
+.Nd Asus Laptop Extras
+.Sh SYNOPSIS
+.Cd "device acpi_asus"
+.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.
+.Pp
+Currently, the following laptops are fully supported:
+.Pp
+.Bl -tag -width ident -compact
+.It L2D
+.It L3C
+.It L3D
+.It L3H
+.It L8L
+.It M1A
+.It M2E
+.El
+.Pp
+.Sh SYSCTLS
+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
+Sets the active display to use according to a bitwise OR 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.  Most models don't, 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
+.%T The Acpi4Asus Project
+.%O 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
+Inspiration came from the 
+.Em acpi4asus project 
+started by Julien Lerouge which maintains a driver implementing this
+functionality in the Linux kernel.