Texas Instruments ADS8688

modulename: ti-ads8688.ko

configname: CONFIG_TI_ADS8688

Linux Kernel Configuration
└─>Device Drivers
└─>Industrial I/O support
└─>Analog to digital converters
└─>SPI support
└─>Device Tree and Open Firmware support
└─>Texas Instruments ADS8688
In linux kernel since version 3.10 (release Date: 2013-06-30)  
If you say yes here you get support for Texas Instruments ADS8684 and
and ADS8688 ADC chips

This driver can also be built as a module. If so, the module will be
called ti-ads8688.

source code: