ca-reset.rst

 1.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
 2.. c:namespace:: DTV.ca
 3
 4.. _CA_RESET:
 5
 6========
 7CA_RESET
 8========
 9
10Name
11----
12
13CA_RESET
14
15Synopsis
16--------
17
18.. c:macro:: CA_RESET
19
20``int ioctl(fd, CA_RESET)``
21
22Arguments
23---------
24
25``fd``
26  File descriptor returned by a previous call to :c:func:`open()`.
27
28Description
29-----------
30
31Puts the Conditional Access hardware on its initial state. It should
32be called before start using the CA hardware.
33
34Return Value
35------------
36
37On success 0 is returned.
38
39On error -1 is returned, and the ``errno`` variable is set
40appropriately.
41
42Generic error codes are described at the
43:ref:`Generic Error Codes <gen-errors>` chapter.