CONFIG_OF_DEVICE (not configurable)

modulename: device.ko

configname: CONFIG_OF_DEVICE

Linux Kernel Configuration
└─>Device Drivers
└─>Device Tree and Open Firmware support
└─>OF_DEVICE
In linux kernel since version 2.6.24 (release Date: 2008-01-24)  
source code:
drivers/of/
depends
CONFIG_OF