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;
• HDMI CEC API;
• Video4Linux API;
• Media controller API;
• Video4Linux Request API (experimental);
• Digital TV API (also known as DVB API).