LED support for LM3692x Chips

modulename: leds-lm3692x.ko

configname: CONFIG_LEDS_LM3692X

Linux Kernel Configuration
└─>Device Drivers
└─>LED Support
└─>Device Tree and Open Firmware support
└─>LED support for LM3692x Chips
In linux kernel since version 4.2 (release Date: 2015-08-30)  
This option enables support for the TI LM3692x family
of white LED string drivers used for backlighting.

source code: