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Diffstat (limited to 'Documentation/userspace-api/media/dvb/ca.rst')
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diff --git a/Documentation/userspace-api/media/dvb/ca.rst b/Documentation/userspace-api/media/dvb/ca.rst new file mode 100644 index 000000000000..643b7c414943 --- /dev/null +++ b/Documentation/userspace-api/media/dvb/ca.rst @@ -0,0 +1,32 @@ +.. 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 + +.. _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 |