CONFIG_I2C_BOARDINFO (not configurable)

modulename: i2c-boardinfo.ko

and/or

swarm-i2c.ko

configname: CONFIG_I2C_BOARDINFO

Linux Kernel Configuration
└─>Device Drivers
└─>I2C support
└─>I2C_BOARDINFO
In linux kernel since version 2.6.24 (release Date: 2008-01-24)  
source code:
drivers/i2c//i2c-boardinfo.c
depends
CONFIG_I2C