A small utility which helps adjust GPIO values using sysfs. Intended to control LEDs, such as keyboard backlight.

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Adjust screen brightness

Usage: mybacklight /sys/class/leds/smc... [-get|-set|-inc|-dec] [amount]

Arguments

-get: Get current brightness
-set x: Set brightness to x%
-inc x: Increase brightness by x%
-dec x: Decrease brightness by x%