ACPI_SONY(4)

NAME
acpi_sony - ACPI notebook controller driver for Sony laptops

SYNOPSIS
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"

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

SYSCTLS
The following sysctl nodes are currently implemented:

dev.acpi_sony.0.brightness
    Current brightness level of the display.

dev.acpi_sony.0.brightness_default
    Default brightness level of the display (survives reboot).

dev.acpi_sony.0.contrast
    Current contrast level of the display.

dev.acpi_sony.0.bass_gain
    Enable or disable the Bass Gain feature.

dev.acpi_sony.0.cdp
    Turns the CD power on or off.

dev.acpi_sony.0.azp
    Turns the audio power on or off.

dev.acpi_sony.0.lnp
    Turns the wired network interface power on or off.

SEE ALSO
acpi(4), sysctl(8)

HISTORY
The acpi_sony driver first appeared in FreeBSD 6.0.

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