acpi_sony(4) - Manual pages

NAME

acpi_sony — ACPI notebook controller driver for Sony laptops

To compile this driver into the kernel, place the following line in your kernel configuration file:

device acpi_sony

Alternatively, to load the driver as a module at boot time, place the following line in loader.conf(5):

acpi_sony_load="YES"

The acpi_sony driver provides support for the notebook controller in Sony laptops. Note that not all features will work on all laptop models.

The following sysctl nodes are currently implemented:

hw.acpi.sony.brightness: Current brightness level of the display.
hw.acpi.sony.brightness_default: Default brightness level of the display (survives reboot).
hw.acpi.sony.contrast: Current contrast level of the display.
hw.acpi.sony.bass_gain: Enable or disable the Bass Gain feature.
hw.acpi.sony.cdp: Turns the CD power on or off.
hw.acpi.sony.azp: Turns the audio power on or off.
hw.acpi.sony.lnp: Turns the wired network interface power on or off.

The acpi_sony driver first appeared in FreeBSD 6.0. It was then ported to DragonFly 2.5.

The acpi_sony driver was written by Takanori Watanabe <takawata@FreeBSD.org>.