| 1234567891011121314151617181920212223242526272829303132333435363738394041424344454647484950 |
- .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
- .. c:namespace:: DTV.net
- .. _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:macro:: NET_GET_IF
- ``int ioctl(int fd, NET_GET_IF, struct dvb_net_if *net_if)``
- Arguments
- =========
- ``fd``
- File descriptor returned by :c:func:`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.
|
