doc_rst: rename the media Sphinx suff to Documentation/media

The name of the subsystem is "media", and not "linux_tv". Also,
as we plan to add other stuff there in the future, let's
rename also the media uAPI book to media_uapi, to make it
clearer.

No functional changes.

Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
diff --git a/Documentation/media/media_uapi.rst b/Documentation/media/media_uapi.rst
new file mode 100644
index 0000000..8211cc9
--- /dev/null
+++ b/Documentation/media/media_uapi.rst
@@ -0,0 +1,83 @@
+.. -*- coding: utf-8; mode: rst -*-
+
+.. include:: <isonum.txt>
+
+##############################
+Linux Media Infrastructure API
+##############################
+
+**Copyright** |copy| 2009-2016 : LinuxTV Developers
+
+Permission is granted to copy, distribute and/or modify this document
+under the terms of the GNU Free Documentation License, Version 1.1 or
+any later version published by the Free Software Foundation. A copy of
+the license is included in the chapter entitled "GNU Free Documentation
+License".
+
+
+============
+Introduction
+============
+
+This document covers the Linux Kernel to Userspace API's used by video
+and radio streaming devices, including video cameras, analog and digital
+TV receiver cards, AM/FM receiver cards, Software Defined Radio (SDR),
+streaming capture and output devices, codec devices and remote controllers.
+
+A typical media device hardware is shown at
+:ref:`typical_media_device`.
+
+
+.. _typical_media_device:
+
+.. figure::  media_api_files/typical_media_device.*
+    :alt:    typical_media_device.svg
+    :align:  center
+
+    Typical Media Device
+
+The media infrastructure API was designed to control such devices. It is
+divided into four parts.
+
+The :Ref:`first part <v4l2spec>` covers radio, video capture and output,
+cameras, analog TV devices and codecs.
+
+The :Ref:`second part <dvbapi>` covers the API used for digital TV and
+Internet reception via one of the several digital tv standards. While it
+is called as DVB API, in fact it covers several different video
+standards including DVB-T/T2, DVB-S/S2, DVB-C, ATSC, ISDB-T, ISDB-S,
+DTMB, etc. The complete list of supported standards can be found at
+:ref:`fe-delivery-system-t`.
+
+The :Ref:`third part <remote_controllers>` covers the Remote Controller API.
+
+The :Ref:`fourth part <media_controller>` covers the Media Controller API.
+
+It should also be noted that a media device may also have audio
+components, like mixers, PCM capture, PCM playback, etc, which are
+controlled via ALSA API.
+
+For additional information and for the latest development code, see:
+`https://linuxtv.org <https://linuxtv.org>`__.
+
+For discussing improvements, reporting troubles, sending new drivers,
+etc, please mail to:
+`Linux Media Mailing List (LMML). <http://vger.kernel.org/vger-lists.html#linux-media>`__.
+
+
+.. toctree::
+    :maxdepth: 1
+
+    uapi/v4l/v4l2
+    uapi/dvb/dvbapi
+    uapi/rc/remote_controllers
+    uapi/mediactl/media-controller
+    uapi/gen-errors
+    uapi/fdl-appendix
+
+.. only:: html
+
+  Retrieval
+  =========
+
+  * :ref:`genindex`