64 lines
1.1 KiB
ReStructuredText
64 lines
1.1 KiB
ReStructuredText
.. -*- coding: utf-8; mode: rst -*-
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.. _CA_GET_DESCR_INFO:
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=================
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CA_GET_DESCR_INFO
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=================
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Name
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----
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CA_GET_DESCR_INFO
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Synopsis
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--------
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.. c:function:: int ioctl(fd, CA_GET_DESCR_INFO, struct ca_descr_info *desc)
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:name: CA_GET_DESCR_INFO
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Arguments
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---------
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``fd``
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File descriptor returned by a previous call to :c:func:`open() <dvb-ca-open>`.
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``desc``
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Pointer to struct :c:type:`ca_descr_info`.
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.. c:type:: struct ca_descr_info
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.. flat-table:: struct ca_descr_info
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:header-rows: 1
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:stub-columns: 0
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-
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- type
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- name
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- description
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-
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- unsigned int
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- num
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- number of available descramblers (keys)
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-
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- unsigned int
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- type
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- type of supported scrambling system. Valid values are:
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``CA_ECD``, ``CA_NDS`` and ``CA_DSS``.
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Description
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-----------
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.. note:: This ioctl is undocumented. Documentation is welcome.
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Return Value
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------------
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On success 0 is returned, on error -1 and the ``errno`` variable is set
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appropriately. The generic error codes are described at the
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:ref:`Generic Error Codes <gen-errors>` chapter.
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