acpi_sony (4)

Leading comments

Copyright (c) 2005 Christian Brueffer
All rights reserved.

Redistribution and use in source and binary forms, with or without
modification, are permitted provided that the following conditions
are met:
1. Redistributions of source code must retain the above copyright
   notice, this list of conditions and the following disclaimer.
2. Redistributions in binary form must reproduce the above copyright
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(The comments found at the beginning of the groff file "man4/acpi_sony.4freebsd".)

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.conf5:

acpi_sony_load="YES"

DESCRIPTION

The 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 driver first appeared in Fx 6.0 .

AUTHORS

The driver was written by An Takanori Watanabe Aq takawata@FreeBSD.org .