ACPI_SONY - reference manual online

ACPI notebook controller driver for Sony laptops.

February 8, 2010
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 configura‐ tion 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 <>.
BSD February 8, 2010 BSD
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acpi_sony(4freebsd) referred by
refer to acpi(4freebsd) | sysctl(8)