Industrial I/O subsystem is intended to provide support for devices that in some sense are analog to digital or digital to analog convertors

Devices that fall into this category are: * ADCs * Accelerometers * Gyros * IMUs * Capacitance to Digital Converters (CDCs) * Pressure Sensors * Color, Light and Proximity Sensors * Temperature Sensors * Magnetometers * DACs * DDS (Direct Digital Synthesis) * PLLs (Phase Locked Loops) * Variable/Programmable Gain Amplifiers (VGA, PGA)

Many ultrabooks ship with some of these devices. iio-sensor-proxy is intended to serve as a proxy, providing access to these devices through a D-Bus interface