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CONFIG_PMAC_BACKLIGHT: Backlight control for LCD screens

General informations

The Linux kernel configuration item CONFIG_PMAC_BACKLIGHT has multiple definitions:

Backlight control for LCD screens found in arch/ppc/Kconfig

The configuration item CONFIG_PMAC_BACKLIGHT:

Help text

Say Y here to build in code to manage the LCD backlight on a Macintosh PowerBook. With this code, the backlight will be turned on and off appropriately on power-management and lid-open/lid-closed events; also, the PowerBook button device will be enabled so you can change the screen brightness.

Backlight control for LCD screens found in drivers/macintosh/Kconfig

The configuration item CONFIG_PMAC_BACKLIGHT:

Help text

Say Y here to enable Macintosh specific extensions of the generic backlight code. With this enabled, the brightness keys on older PowerBooks will be enabled so you can change the screen brightness. Newer models should use a userspace daemon like pbbuttonsd.

Hardware

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