Documentation: add dummy pages for missing top directories

crypto, openamp, video and wireless

Documentation/components/audio/index.rst

@@ -1,9 +1,9 @@
 ===============
-Audio subsystem
+Audio Subsystem
 ===============
 
 This page discusses the audio subsystem support for NuttX which is only built if
-CONFIG_AUDIO is defined in the NuttX configuration file.
+``CONFIG_AUDIO`` is defined in the NuttX configuration file.
 
 Files in nuttx/audio
 ====================

Documentation/components/crypto.rst

@@ -0,0 +1,5 @@
+====================
+Crypto API Subsystem
+====================
+
+In the future this page will contain details about the Crypto API in NuttX.

Documentation/components/index.rst

@@ -26,3 +26,8 @@ case, you can head to the :doc:`reference <../reference/index>`.
    tools/index.rst
    arch/index.rst
    boards.rst
+   cmake.rst
+   openamp.rst
+   video.rst
+   crypto.rst
+   wireless.rst

Documentation/components/openamp.rst

@@ -0,0 +1,6 @@
+===============
+OpenAMP Support
+===============
+
+Asymmetric Multi Processing support in NuttX is implemented via
+`OpenAMP <https://www.openampproject.org/>`_ framework.

Documentation/components/video.rst

@@ -0,0 +1,5 @@
+===============
+Video Subsystem
+===============
+
+In the future this page will contain details about the video support in NuttX.

Documentation/components/wireless.rst

@@ -0,0 +1,11 @@
+==================
+Wireless Subsystem
+==================
+
+In the future this page will contain details about the wireless support in NuttX.
+
+Components:
+
+- ``wireless/bluetooth`` - Bluetooth Low Energy Support
+- ``wireless/pktradio`` - Packet Radio Support
+- ``wireless/ieee802154`` - IEEE 802.15.4 Support