53 lines
1.1 KiB
ReStructuredText
53 lines
1.1 KiB
ReStructuredText
.. -*- coding: utf-8; mode: rst -*-
|
|
|
|
.. _NET_GET_IF:
|
|
|
|
****************
|
|
ioctl NET_GET_IF
|
|
****************
|
|
|
|
Name
|
|
====
|
|
|
|
NET_GET_IF - Read the configuration data of an interface created via - :ref:`NET_ADD_IF <net>`.
|
|
|
|
|
|
Synopsis
|
|
========
|
|
|
|
.. c:function:: int ioctl( int fd, NET_GET_IF, struct dvb_net_if *net_if )
|
|
:name: NET_GET_IF
|
|
|
|
|
|
Arguments
|
|
=========
|
|
|
|
``fd``
|
|
File descriptor returned by :ref:`open() <frontend_f_open>`.
|
|
|
|
``net_if``
|
|
pointer to struct :c:type:`dvb_net_if`
|
|
|
|
|
|
Description
|
|
===========
|
|
|
|
The NET_GET_IF ioctl uses the interface number given by the struct
|
|
:c:type:`dvb_net_if`::ifnum field and fills the content of
|
|
struct :c:type:`dvb_net_if` with the packet ID and
|
|
encapsulation type used on such interface. If the interface was not
|
|
created yet with :ref:`NET_ADD_IF <net>`, it will return -1 and fill
|
|
the ``errno`` with ``EINVAL`` error code.
|
|
|
|
|
|
Return Value
|
|
============
|
|
|
|
On success 0 is returned, and :c:type:`ca_slot_info` is filled.
|
|
|
|
On error -1 is returned, and the ``errno`` variable is set
|
|
appropriately.
|
|
|
|
The generic error codes are described at the
|
|
:ref:`Generic Error Codes <gen-errors>` chapter.
|