mirror of https://gitee.com/openkylin/linux.git
53 lines
1.1 KiB
ReStructuredText
53 lines
1.1 KiB
ReStructuredText
.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
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.. c:namespace:: DTV.net
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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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.. c:macro:: NET_ADD_IF
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``int ioctl(int fd, NET_ADD_IF, 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 :c:func:`open()`.
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``net_if``
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pointer to struct :c:type:`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 :c:type:`dvb_net_if`::ifnum field will be
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filled with the number of the created interface.
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Return Value
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============
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On success 0 is returned, and :c:type:`ca_slot_info` is filled.
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On error -1 is returned, and the ``errno`` variable is set
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appropriately.
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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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