ca-get-descr-info.rst

 1.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
 2.. c:namespace:: DTV.ca
 3
 4.. _CA_GET_DESCR_INFO:
 5
 6=================
 7CA_GET_DESCR_INFO
 8=================
 9
10Name
11----
12
13CA_GET_DESCR_INFO
14
15Synopsis
16--------
17
18.. c:macro:: CA_GET_DESCR_INFO
19
20``int ioctl(fd, CA_GET_DESCR_INFO, struct ca_descr_info *desc)``
21
22Arguments
23---------
24
25``fd``
26  File descriptor returned by a previous call to :c:func:`open()`.
27
28``desc``
29  Pointer to struct :c:type:`ca_descr_info`.
30
31Description
32-----------
33
34Returns information about all descrambler slots.
35
36Return Value
37------------
38
39On success 0 is returned, and :c:type:`ca_descr_info` is filled.
40
41On error -1 is returned, and the ``errno`` variable is set
42appropriately. The generic error codes are described at the
43:ref:`Generic Error Codes <gen-errors>` chapter.