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+.. SPDX-License-Identifier: GPL-2.0
+
+============
+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).