LED support for PCA963x I2C chip

modulename: leds-pca963x.ko

configname: CONFIG_LEDS_PCA963X

Linux Kernel Configuration
└─>Device Drivers
└─>LED Support
└─>LED support for PCA963x I2C chip
In linux kernel since version 3.12 (release Date: 2013-11-03)  
This option enables support for LEDs connected to the PCA963x
LED driver chip accessed via the I2C bus. Supported
devices include PCA9633 and PCA9634

source code:
drivers/leds/leds-pca963x.c