Atmel AT91 ADC

modulename: at91_adc.ko

configname: CONFIG_AT91_ADC

Linux Kernel Configuration
└─>Device Drivers
└─>Industrial I/O support
└─>Analog to digital converters
└─>Atmel AT91 ADC
In linux kernel since version 3.1 (release Date: 2011-10-24)  
Say yes here to build support for Atmel AT91 ADC.

source code:
drivers/iio/adc/at91_adc.c

depends
CONFIG_ARCH_AT91
CONFIG_IIO
CONFIG_INPUT or CONFIG_OF or CONFIG_SYSFS or CONFIG_ARCH_AT91 or CONFIG_COMPILE_TEST