Additionally, acpi_asus also supports the Asus-compatible ATK0100 interface found in Samsung P30/P35 laptops.
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.
acpi(4), acpi_asus_wmi(4), acpi_video(4), sysctl.conf(5), sysctl(8)
.Rs The acpi4asus Project
The acpi_asus driver first appeared in
.Fx 5.3 .
.An -nosplit The acpi_asus driver and this manual page were written by
.An Philip Paeps Aq philip@FreeBSD.org .
Inspiration came from the acpi4asus project started by
.An Julien Lerouge which maintains a driver implementing this functionality in the Linux kernel.