1 .. -*- coding: utf-8; mode: rst -*-
12 NET_GET_IF - Read the configuration data of an interface created via - :ref:`NET_ADD_IF <net>`.
18 .. cpp:function:: int ioctl( int fd, int request, struct dvb_net_if *net_if )
25 File descriptor returned by :ref:`open() <frontend_f_open>`.
31 pointer to struct :ref:`dvb_net_if <dvb-net-if>`
37 The NET_GET_IF ioctl uses the interface number given by the struct
38 :ref:`dvb_net_if <dvb-net-if>`::ifnum field and fills the content of
39 struct :ref:`dvb_net_if <dvb-net-if>` with the packet ID and
40 encapsulation type used on such interface. If the interface was not
41 created yet with :ref:`NET_ADD_IF <net>`, it will return -1 and fill
42 the ``errno`` with ``EINVAL`` error code.
48 On success 0 is returned, on error -1 and the ``errno`` variable is set
49 appropriately. The generic error codes are described at the
50 :ref:`Generic Error Codes <gen-errors>` chapter.