How to enable IIO driver in 3.18 kernel

HI team, We are integrating one sensor driver in to LE platform. After adding sensor driver, it is creating device @ /sys/bus/iio/devices/iio:device0,1,2. Sensor driver makes use of IIO subsystem framework. We are not seeing iio device creation @ */dev/iio:device0*,1,2 I have enabled below configuration in the defconfing along with sensor configuration. CONFIG_IIO=y CONFIG_IIO_BUFFER=y CONFIG_IIO_BUFFER_CB=y CONFIG_IIO_KFIFO_BUF=y CONFIG_IIO_TRIGGERED_BUFFER=y CONFIG_IIO_TRIGGER=y CONFIG_IIO_CONSUMERS_PER_TRIGGER=2 I'm able to see kernel prints from"iio_device_register" function. Appreciate any pointers on this regard. Kernel version: 3.18 -- Regards Naresh Babu 09900139337