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linux-next/Documentation/userspace-api/media/dvb/ca.rst
Mauro Carvalho Chehab 059b1c5b15 media: docs: use the new SPDX header for GFDL-1.1 on *.rst files
SPDX v3.10 gained support for GFDL-1.1 with no invariant sections:

	https://spdx.org/licenses/GFDL-1.1-no-invariants-or-later.html

So, remove the license text, replacing them by this new SPDX
license.

Signed-off-by: Mauro Carvalho Chehab <mchehab+huawei@kernel.org>
2020-09-01 14:13:30 +02:00

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.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. _dvb_ca:
####################
Digital TV CA Device
####################
The Digital TV CA device controls the conditional access hardware. It
can be accessed through ``/dev/dvb/adapter?/ca?``. Data types and and ioctl
definitions can be accessed by including ``linux/dvb/ca.h`` in your
application.
.. note::
There are three ioctls at this API that aren't documented:
:ref:`CA_GET_MSG`, :ref:`CA_SEND_MSG` and :ref:`CA_SET_DESCR`.
Documentation for them are welcome.
.. toctree::
:maxdepth: 1
ca_data_types
ca_function_calls
ca_high_level