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Diffstat (limited to 'Documentation/media/uapi/dvb/ca-get-descr-info.rst')
| -rw-r--r-- | Documentation/media/uapi/dvb/ca-get-descr-info.rst | 42 |
1 files changed, 42 insertions, 0 deletions
diff --git a/Documentation/media/uapi/dvb/ca-get-descr-info.rst b/Documentation/media/uapi/dvb/ca-get-descr-info.rst new file mode 100644 index 000000000..e564fbb8d --- /dev/null +++ b/Documentation/media/uapi/dvb/ca-get-descr-info.rst @@ -0,0 +1,42 @@ +.. -*- coding: utf-8; mode: rst -*- + +.. _CA_GET_DESCR_INFO: + +================= +CA_GET_DESCR_INFO +================= + +Name +---- + +CA_GET_DESCR_INFO + + +Synopsis +-------- + +.. c:function:: int ioctl(fd, CA_GET_DESCR_INFO, struct ca_descr_info *desc) + :name: CA_GET_DESCR_INFO + +Arguments +--------- + +``fd`` + File descriptor returned by a previous call to :c:func:`open() <dvb-ca-open>`. + +``desc`` + Pointer to struct :c:type:`ca_descr_info`. + +Description +----------- + +Returns information about all descrambler slots. + +Return Value +------------ + +On success 0 is returned, and :c:type:`ca_descr_info` is filled. + +On error -1 is returned, and the ``errno`` variable is set +appropriately. The generic error codes are described at the +:ref:`Generic Error Codes <gen-errors>` chapter. |