1 .. Permission is granted to copy, distribute and/or modify this
2 .. document under the terms of the GNU Free Documentation License,
3 .. Version 1.1 or any later version published by the Free Software
4 .. Foundation, with no Invariant Sections, no Front-Cover Texts
5 .. and no Back-Cover Texts. A copy of the license is included at
6 .. Documentation/media/uapi/fdl-appendix.rst.
8 .. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections
10 .. _CA_GET_DESCR_INFO:
25 .. c:function:: int ioctl(fd, CA_GET_DESCR_INFO, struct ca_descr_info *desc)
26 :name: CA_GET_DESCR_INFO
32 File descriptor returned by a previous call to :c:func:`open() <dvb-ca-open>`.
35 Pointer to struct :c:type:`ca_descr_info`.
40 Returns information about all descrambler slots.
45 On success 0 is returned, and :c:type:`ca_descr_info` is filled.
47 On error -1 is returned, and the ``errno`` variable is set
48 appropriately. The generic error codes are described at the
49 :ref:`Generic Error Codes <gen-errors>` chapter.