1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
2 .. c:namespace:: DTV.net
13 NET_GET_IF - Read the configuration data of an interface created via - :ref:`NET_ADD_IF <net>`.
18 .. c:macro:: NET_GET_IF
20 ``int ioctl(int fd, NET_GET_IF, struct dvb_net_if *net_if)``
26 File descriptor returned by :c:func:`open()`.
29 pointer to struct :c:type:`dvb_net_if`
34 The NET_GET_IF ioctl uses the interface number given by the struct
35 :c:type:`dvb_net_if`::ifnum field and fills the content of
36 struct :c:type:`dvb_net_if` with the packet ID and
37 encapsulation type used on such interface. If the interface was not
38 created yet with :ref:`NET_ADD_IF <net>`, it will return -1 and fill
39 the ``errno`` with ``EINVAL`` error code.
44 On success 0 is returned, and :c:type:`ca_slot_info` is filled.
46 On error -1 is returned, and the ``errno`` variable is set
49 The generic error codes are described at the
50 :ref:`Generic Error Codes <gen-errors>` chapter.