linux/Documentation/userspace-api/media/dvb/ca-get-slot-info.rst

.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
.. c:namespace:: DTV.ca

.. _CA_GET_SLOT_INFO:

================
CA_GET_SLOT_INFO
================

Name
----

CA_GET_SLOT_INFO

Synopsis
--------

.. c:macro:: CA_GET_SLOT_INFO

``int ioctl(fd, CA_GET_SLOT_INFO, struct ca_slot_info *info)``

Arguments
---------

``fd``
  File descriptor returned by a previous call to :c:func:`open()`.

``info``
  Pointer to struct :c:type:`ca_slot_info`.

Description
-----------

Returns information about a CA slot identified by
:c:type:`ca_slot_info`.slot_num.

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.

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    -  -  ``ENODEV``
       -  the slot is not available.

The generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.