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ACPI_SONY(4) Device Drivers 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>.
February 8, 2010 Linux 4.19.0-10-amd64