1. Introduction

The media subsystem consists on Linux support for several different types of devices:

  • Audio and video grabbers;

  • PC and Laptop Cameras;

  • Complex cameras found on Embedded hardware;

  • Analog and digital TV;

  • HDMI Customer Electronics Control (CEC);

  • Multi-touch input devices;

  • Remote Controllers;

  • Media encoders and decoders.

Due to the diversity of devices, the subsystem provides several different APIs:

  • Remote Controller API;


  • Video4Linux API;

  • Media controller API;

  • Video4Linux Request API (experimental);

  • Digital TV API (also known as DVB API).