Industrial I/O support

modulename: industrialio.ko

configname: CONFIG_IIO

Linux Kernel Configuration
└─>Device Drivers
└─>Industrial I/O support
In linux kernel since version 2.6.32 (release Date: 2009-12-02)  
The industrial I/O subsystem provides a unified framework for
drivers for many different types of embedded sensors using a
number of different physical interfaces (i2c, spi, etc).

source code:
drivers/iio/