Documentation/userspace-api/media/dvb/fe-type-t.rst

Source file repositories/reference/linux-study-clean/Documentation/userspace-api/media/dvb/fe-type-t.rst

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Linux kernel
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Documentation/userspace-api/media/dvb/fe-type-t.rst
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.rst
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Support Tooling And Documentation
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Documentation
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Support Tooling And Documentation: documentation
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atlas-only

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Repository support layer: documentation, build tooling, samples, user-space helper tools, generated initramfs support, licenses, and validation utilities.

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.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later

*************
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{8.5cm}|

.. 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)

Annotation

Implementation Notes