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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/media/uapi/fdl-appendix.rst.
-..
-.. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections
-
-*************
-Frontend type
-*************
-
-For historical reasons, frontend types are named by the type of
-modulation used in transmission. The fontend types are given by
-fe_type_t type, defined as:
-
-
-.. c:type:: fe_type
-
-.. tabularcolumns:: |p{6.6cm}|p{2.2cm}|p{8.7cm}|
-
-.. flat-table:: Frontend types
- :header-rows: 1
- :stub-columns: 0
- :widths: 3 1 4
-
-
- - .. row 1
-
- - fe_type
-
- - Description
-
- - :ref:`DTV_DELIVERY_SYSTEM <DTV-DELIVERY-SYSTEM>` equivalent
- type
-
- - .. row 2
-
- - .. _FE-QPSK:
-
- ``FE_QPSK``
-
- - For DVB-S standard
-
- - ``SYS_DVBS``
-
- - .. row 3
-
- - .. _FE-QAM:
-
- ``FE_QAM``
-
- - For DVB-C annex A standard
-
- - ``SYS_DVBC_ANNEX_A``
-
- - .. row 4
-
- - .. _FE-OFDM:
-
- ``FE_OFDM``
-
- - For DVB-T standard
-
- - ``SYS_DVBT``
-
- - .. row 5
-
- - .. _FE-ATSC:
-
- ``FE_ATSC``
-
- - For ATSC standard (terrestrial) or for DVB-C Annex B (cable) used
- in US.
-
- - ``SYS_ATSC`` (terrestrial) or ``SYS_DVBC_ANNEX_B`` (cable)
-
-
-Newer formats like DVB-S2, ISDB-T, ISDB-S and DVB-T2 are not described
-at the above, as they're supported via the new
-:ref:`FE_GET_PROPERTY/FE_GET_SET_PROPERTY <FE_GET_PROPERTY>`
-ioctl's, using the :ref:`DTV_DELIVERY_SYSTEM <DTV-DELIVERY-SYSTEM>`
-parameter.
-
-In the old days, struct :c:type:`dvb_frontend_info`
-used to contain ``fe_type_t`` field to indicate the delivery systems,
-filled with either ``FE_QPSK, FE_QAM, FE_OFDM`` or ``FE_ATSC``. While this
-is still filled to keep backward compatibility, the usage of this field
-is deprecated, as it can report just one delivery system, but some
-devices support multiple delivery systems. Please use
-:ref:`DTV_ENUM_DELSYS <DTV-ENUM-DELSYS>` instead.
-
-On devices that support multiple delivery systems, struct
-:c:type:`dvb_frontend_info`::``fe_type_t`` is
-filled with the currently standard, as selected by the last call to
-:ref:`FE_SET_PROPERTY <FE_GET_PROPERTY>` using the
-:ref:`DTV_DELIVERY_SYSTEM <DTV-DELIVERY-SYSTEM>` property.