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.conf(5):
DESCRIPTION¶
The
acpi_asus 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,
acpi_asus 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_video(4) driver. Most models do not, however.
Defaults for these variables can be set in
sysctl.conf(5),
which is parsed at boot-time.
SEE ALSO¶
acpi(4),
acpi_video(4),
sysctl.conf(5),
sysctl(8)
The acpi4asus Project,
http://sourceforge.net/projects/acpi4asus/.
HISTORY¶
The
acpi_asus driver first appeared in
FreeBSD 5.3.
AUTHORS¶
The
acpi_asus driver and this manual page were written by
Philip Paeps ⟨philip@FreeBSD.org⟩.
Inspiration came from the
acpi4asus project started by
Julien Lerouge which maintains a driver implementing
this functionality in the Linux kernel.