LED Support for GPIO connected LEDs

modulename: leds-gpio.ko

configname: CONFIG_LEDS_GPIO

Linux Kernel Configuration
└─>Device Drivers
└─>LED Support
└─>GPIO Support
└─>LED Support for GPIO connected LEDs
In linux kernel since version 2.6.24 (release Date: 2008-01-24)  
This option enables support for the LEDs connected to GPIO
outputs. To be useful the particular board must have LEDs
and they must be connected to the GPIO lines. The LEDs must be
defined as platform devices and/or OpenFirmware platform devices.
The code to use these bindings can be selected below.

source code: