Beaglebone using ADCs with LCD7 cape connected


I am using a BeagleBone with Angstrom running Linux 3.2.42 kernel.

I need to get access to one of my ADCs with my LCD7 touchscreen working at the same time. I understand that pins AIN4 to AIN7 are available in this way. I need to use this in a c program to read some data. I am using Angstrom

Am i supposed to get a char driver iio:device for the ADC in /dev which will enable me to access the ADC from my program ? Right now iio is not listing in my /dev folder. What are the steps i need to do before i can get access in such a way ??

Thanks a lot.