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.. -*- coding: utf-8; mode: rst -*-
.. _CA_GET_DESCR_INFO:
=================
CA_GET_DESCR_INFO
=================
Name
----
CA_GET_DESCR_INFO
Synopsis
--------
.. c:function:: int ioctl(fd, CA_GET_DESCR_INFO, struct ca_descr_info *desc)
:name: CA_GET_DESCR_INFO
Arguments
---------
``fd``
File descriptor returned by a previous call to :c:func:`open() <dvb-ca-open>`.
``desc``
Pointer to struct :c:type:`ca_descr_info`.
Description
-----------
Returns information about all descrambler slots.
Return Value
------------
On success 0 is returned, and :c:type:`ca_descr_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.
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