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