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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 models.

SYSCTLS
     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.

SEE ALSO
     acpi(4), sysctl(8)

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

AUTHORS
     The acpi_sony driver was written by Takanori Watanabe
     ⟨takawata@FreeBSD.org⟩.

BSD				 July 4, 2010				   BSD

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