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author | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
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committer | Daniel Baumann <daniel.baumann@progress-linux.org> | 2024-04-07 18:49:45 +0000 |
commit | 2c3c1048746a4622d8c89a29670120dc8fab93c4 (patch) | |
tree | 848558de17fb3008cdf4d861b01ac7781903ce39 /Documentation/userspace-api/media/dvb/ca-reset.rst | |
parent | Initial commit. (diff) | |
download | linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.tar.xz linux-2c3c1048746a4622d8c89a29670120dc8fab93c4.zip |
Adding upstream version 6.1.76.upstream/6.1.76
Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
Diffstat (limited to 'Documentation/userspace-api/media/dvb/ca-reset.rst')
-rw-r--r-- | Documentation/userspace-api/media/dvb/ca-reset.rst | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/Documentation/userspace-api/media/dvb/ca-reset.rst b/Documentation/userspace-api/media/dvb/ca-reset.rst new file mode 100644 index 000000000..b01ca48f0 --- /dev/null +++ b/Documentation/userspace-api/media/dvb/ca-reset.rst @@ -0,0 +1,43 @@ +.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later +.. c:namespace:: DTV.ca + +.. _CA_RESET: + +======== +CA_RESET +======== + +Name +---- + +CA_RESET + +Synopsis +-------- + +.. c:macro:: CA_RESET + +``int ioctl(fd, CA_RESET)`` + +Arguments +--------- + +``fd`` + File descriptor returned by a previous call to :c:func:`open()`. + +Description +----------- + +Puts the Conditional Access hardware on its initial state. It should +be called before start using the CA hardware. + +Return Value +------------ + +On success 0 is returned. + +On error -1 is returned, and the ``errno`` variable is set +appropriately. + +Generic error codes are described at the +:ref:`Generic Error Codes <gen-errors>` chapter. |