Analog Devices AD799x ADC driver

modulename: ad799x.ko

configname: CONFIG_AD799X

Linux Kernel Configuration
└─>Device Drivers
└─>Industrial I/O support
└─>Analog to digital converters
└─>I2C support
└─>Analog Devices AD799x ADC driver
In linux kernel since version 2.6.37 (release Date: 2011-01-04)  
Say yes here to build support for Analog Devices:
ad7991, ad7995, ad7999, ad7992, ad7993, ad7994, ad7997, ad7998
i2c analog to digital converters (ADC). Provides direct access
via sysfs.

source code:
drivers/iio/adc/ad799x.c