1.. Permission is granted to copy, distribute and/or modify this 2.. document under the terms of the GNU Free Documentation License, 3.. Version 1.1 or any later version published by the Free Software 4.. Foundation, with no Invariant Sections, no Front-Cover Texts 5.. and no Back-Cover Texts. A copy of the license is included at 6.. Documentation/userspace-api/media/fdl-appendix.rst. 7.. 8.. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections 9 10.. _dvb_ca: 11 12#################### 13Digital TV CA Device 14#################### 15 16The Digital TV CA device controls the conditional access hardware. It 17can be accessed through ``/dev/dvb/adapter?/ca?``. Data types and and ioctl 18definitions can be accessed by including ``linux/dvb/ca.h`` in your 19application. 20 21.. note:: 22 23 There are three ioctls at this API that aren't documented: 24 :ref:`CA_GET_MSG`, :ref:`CA_SEND_MSG` and :ref:`CA_SET_DESCR`. 25 Documentation for them are welcome. 26 27.. toctree:: 28 :maxdepth: 1 29 30 ca_data_types 31 ca_function_calls 32 ca_high_level 33