76 lines
1.6 KiB
ReStructuredText
76 lines
1.6 KiB
ReStructuredText
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.. Permission is granted to copy, distribute and/or modify this
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.. document under the terms of the GNU Free Documentation License,
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.. Version 1.1 or any later version published by the Free Software
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.. Foundation, with no Invariant Sections, no Front-Cover Texts
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.. and no Back-Cover Texts. A copy of the license is included at
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.. Documentation/media/uapi/fdl-appendix.rst.
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..
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.. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections
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.. _DMX_START:
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=========
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DMX_START
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=========
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Name
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----
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DMX_START
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Synopsis
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--------
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.. c:function:: int ioctl( int fd, DMX_START)
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:name: DMX_START
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Arguments
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---------
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``fd``
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File descriptor returned by :c:func:`open() <dvb-dmx-open>`.
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Description
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-----------
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This ioctl call is used to start the actual filtering operation defined
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via the ioctl calls :ref:`DMX_SET_FILTER` or :ref:`DMX_SET_PES_FILTER`.
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Return Value
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------------
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On success 0 is returned.
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On error -1 is returned, and the ``errno`` variable is set
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appropriately.
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.. tabularcolumns:: |p{2.5cm}|p{15.0cm}|
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.. flat-table::
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:header-rows: 0
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:stub-columns: 0
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- .. row 1
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- ``EINVAL``
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- Invalid argument, i.e. no filtering parameters provided via the
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:ref:`DMX_SET_FILTER` or :ref:`DMX_SET_PES_FILTER` ioctls.
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- .. row 2
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- ``EBUSY``
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- This error code indicates that there are conflicting requests.
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There are active filters filtering data from another input source.
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Make sure that these filters are stopped before starting this
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filter.
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The generic error codes are described at the
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:ref:`Generic Error Codes <gen-errors>` chapter.
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