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.. -*- coding: utf-8; mode: rst -*-
.. _CA_GET_SLOT_INFO:
================
CA_GET_SLOT_INFO
================
Name
----
CA_GET_SLOT_INFO
Synopsis
--------
.. c:function:: int ioctl(fd, CA_GET_SLOT_INFO, struct ca_slot_info *info)
:name: CA_GET_SLOT_INFO
Arguments
---------
``fd``
File descriptor returned by a previous call to :c:func:`open() <cec-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.
If the slot is not available, ``errno`` will contain ``-EINVAL``.
The generic error codes are described at the
:ref:`Generic Error Codes <gen-errors>` chapter.
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