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ACPI_SONY(4)          DragonFly Kernel Interfaces Manual          ACPI_SONY(4)


acpi_sony -- ACPI notebook controller driver for Sony laptops


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"


The acpi_sony driver provides support for the notebook controller in Sony laptops. Note that not all features will work on all laptop models.


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.


acpi(4), sysctl(8)


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


The acpi_sony driver was written by Takanori Watanabe <takawata@FreeBSD.org>. DragonFly 3.5 July 4, 2010 DragonFly 3.5

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