LED support for LM3554 and LM3556 chips

modulename: leds-lm355x.ko

configname: CONFIG_LEDS_LM355x

Linux Kernel Configuration
└─>Device Drivers
└─>LED Support
└─>LED support for LM3554 and LM3556 chips
In linux kernel since version 3.1 (release Date: 2011-10-24)  
This option enables support for LEDs connected to LM3554
and LM3556. It includes Torch, Flash and Indicator functions.

source code: