ACPI_SONY(4)           FreeBSD Kernel Interfaces Manual           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>.

FreeBSD 13.1-RELEASE-p6        February 8, 2010        FreeBSD 13.1-RELEASE-p6