Files
android_kernel_xiaomi_sm8450/Documentation/userspace-api/media/dvb/net.rst
Mauro Carvalho Chehab 54f38fcae5 media: docs: move uAPI book to userspace-api/media
Since 2017, there is an space reserved for userspace API,
created by changeset 1d596dee38 ("docs: Create a user-space API guide").

As the media subsystem was one of the first subsystems to use
Sphinx, until this patch, we were keeping things on a separate
place.

Let's just use the new location, as having all uAPI altogether
will likely make things easier for developers.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-04-14 10:31:49 +02:00

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.. 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, with no Invariant Sections, no Front-Cover Texts
.. and no Back-Cover Texts. A copy of the license is included at
.. Documentation/userspace-api/media/fdl-appendix.rst.
..
.. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections
.. _net:
######################
Digital TV Network API
######################
The Digital TV net device controls the mapping of data packages that are part
of a transport stream to be mapped into a virtual network interface,
visible through the standard Linux network protocol stack.
Currently, two encapsulations are supported:
- `Multi Protocol Encapsulation (MPE) <http://en.wikipedia.org/wiki/Multiprotocol_Encapsulation>`__
- `Ultra Lightweight Encapsulation (ULE) <http://en.wikipedia.org/wiki/Unidirectional_Lightweight_Encapsulation>`__
In order to create the Linux virtual network interfaces, an application
needs to tell to the Kernel what are the PIDs and the encapsulation
types that are present on the transport stream. This is done through
``/dev/dvb/adapter?/net?`` device node. The data will be available via
virtual ``dvb?_?`` network interfaces, and will be controlled/routed via
the standard ip tools (like ip, route, netstat, ifconfig, etc).
Data types and and ioctl definitions are defined via ``linux/dvb/net.h``
header.
.. _net_fcalls:
Digital TV net Function Calls
#############################
.. toctree::
:maxdepth: 1
net-types
net-add-if
net-remove-if
net-get-if