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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: 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.
The acpi_sony driver first appeared in FreeBSD 6.0.
The acpi_sony driver was written by Takanori Watanabe <takawata@FreeBSD.org>.