1 .. Permission is granted to copy, distribute and/or modify this
2 .. document under the terms of the GNU Free Documentation License,
3 .. Version 1.1 or any later version published by the Free Software
4 .. Foundation, with no Invariant Sections, no Front-Cover Texts
5 .. and no Back-Cover Texts. A copy of the license is included at
6 .. Documentation/media/uapi/fdl-appendix.rst.
8 .. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections
19 NET_GET_IF - Read the configuration data of an interface created via - :ref:`NET_ADD_IF <net>`.
25 .. c:function:: int ioctl( int fd, NET_GET_IF, struct dvb_net_if *net_if )
33 File descriptor returned by :ref:`open() <frontend_f_open>`.
36 pointer to struct :c:type:`dvb_net_if`
42 The NET_GET_IF ioctl uses the interface number given by the struct
43 :c:type:`dvb_net_if`::ifnum field and fills the content of
44 struct :c:type:`dvb_net_if` with the packet ID and
45 encapsulation type used on such interface. If the interface was not
46 created yet with :ref:`NET_ADD_IF <net>`, it will return -1 and fill
47 the ``errno`` with ``EINVAL`` error code.
53 On success 0 is returned, and :c:type:`ca_slot_info` is filled.
55 On error -1 is returned, and the ``errno`` variable is set
58 The generic error codes are described at the
59 :ref:`Generic Error Codes <gen-errors>` chapter.