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60c2820d0f
The name of the subsystem is "media", and not "linux_tv". Also, as we plan to add other stuff there in the future, let's rename also the media uAPI book to media_uapi, to make it clearer. No functional changes. Signed-off-by: Mauro Carvalho Chehab <mchehab@s-opensource.com>
91 lines
1.7 KiB
ReStructuredText
91 lines
1.7 KiB
ReStructuredText
.. -*- coding: utf-8; mode: rst -*-
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.. _NET_ADD_IF:
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****************
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ioctl NET_ADD_IF
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****************
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Name
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====
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NET_ADD_IF - Creates a new network interface for a given Packet ID.
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Synopsis
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========
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.. cpp:function:: int ioctl( int fd, int request, struct dvb_net_if *net_if )
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Arguments
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=========
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``fd``
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File descriptor returned by :ref:`open() <frontend_f_open>`.
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``request``
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FE_SET_TONE
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``net_if``
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pointer to struct :ref:`dvb_net_if <dvb-net-if>`
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Description
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===========
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The NET_ADD_IF ioctl system call selects the Packet ID (PID) that
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contains a TCP/IP traffic, the type of encapsulation to be used (MPE or
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ULE) and the interface number for the new interface to be created. When
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the system call successfully returns, a new virtual network interface is
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created.
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The struct :ref:`dvb_net_if <dvb-net-if>`::ifnum field will be
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filled with the number of the created interface.
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.. _dvb-net-if-t:
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struct dvb_net_if description
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=============================
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.. _dvb-net-if:
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.. flat-table:: struct dvb_net_if
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:header-rows: 1
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:stub-columns: 0
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- .. row 1
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- ID
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- Description
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- .. row 2
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- pid
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- Packet ID (PID) of the MPEG-TS that contains data
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- .. row 3
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- ifnum
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- number of the DVB interface.
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- .. row 4
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- feedtype
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- Encapsulation type of the feed. It can be:
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``DVB_NET_FEEDTYPE_MPE`` for MPE encoding or
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``DVB_NET_FEEDTYPE_ULE`` for ULE encoding.
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Return Value
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============
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On success 0 is returned, on error -1 and the ``errno`` variable is set
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appropriately. The generic error codes are described at the
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:ref:`Generic Error Codes <gen-errors>` chapter.
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