Analog Devices AD7780 and similar ADCs driver

modulename: ad7780.ko

configname: CONFIG_AD7780

Linux Kernel Configuration
└─>Device Drivers
└─>Staging drivers
└─>IIO staging drivers
└─>Analog to digital converters
└─>SPI support
└─>GPIO Support
└─>Analog Devices AD7780 and similar ADCs driver
In linux kernel since version 3 (release Date: 2011-07-21)  
Say yes here to build support for Analog Devices AD7170, AD7171,
AD7780 and AD7781 SPI analog to digital converters (ADC).
If unsure, say N (but it's safe to say "Y").

To compile this driver as a module, choose M here: the
module will be called ad7780.

source code:

depends
CONFIG_IIO
CONFIG_SPI
CONFIG_STAGING
CONFIG_COMPILE_TEST or CONFIG_GPIOLIB