ACPI_SONY(4)						   BSD 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 mod-
     els.

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>.

BSD
								 February 8, 2010							       BSD