2 .\" Copyright (c) 2004 Philip Paeps <philip@FreeBSD.org>
3 .\" All rights reserved.
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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
120 also supports the Asus-compatible
126 The following sysctls are currently implemented:
127 .Bl -tag -width indent
128 .It Va hw.acpi.asus.lcd_brightness
129 Makes the LCD backlight brighter or dimmer (higher values are brighter).
130 .It Va hw.acpi.asus.lcd_backlight
131 Turns the LCD backlight on or off.
132 .It Va hw.acpi.asus.video_output
133 Sets the active display to use according to a bitwise OR of the following:
135 .Bl -tag -width indent -compact
146 Some models also support video switching via the generic
149 Most models do not, however.
152 Defaults for these variables can be set in
154 which is parsed at boot-time.
161 .%T The acpi4asus Project
162 .%O http://sourceforge.net/projects/acpi4asus/
167 driver first appeared in
173 driver and this manual page were written by
174 .An Philip Paeps Aq philip@FreeBSD.org .
176 Inspiration came from the
177 .Em acpi4asus project
180 which maintains a driver implementing this