Synopsis
========
-.. cpp:function:: int ioctl( int fd, int request, struct dvb_net_if *net_if )
+.. 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>`.
-``request``
- FE_SET_TONE
-
``net_if``
- pointer to struct :ref:`dvb_net_if <dvb-net-if>`
+ pointer to struct :c:type:`dvb_net_if`
Description
===========
The NET_GET_IF ioctl uses the interface number given by the struct
-:ref:`dvb_net_if <dvb-net-if>`::ifnum field and fills the content of
-struct :ref:`dvb_net_if <dvb-net-if>` with the packet ID and
+: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.