0001 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
0002 .. c:namespace:: DTV.ca
0003
0004 .. _CA_GET_DESCR_INFO:
0005
0006 =================
0007 CA_GET_DESCR_INFO
0008 =================
0009
0010 Name
0011 ----
0012
0013 CA_GET_DESCR_INFO
0014
0015 Synopsis
0016 --------
0017
0018 .. c:macro:: CA_GET_DESCR_INFO
0019
0020 ``int ioctl(fd, CA_GET_DESCR_INFO, struct ca_descr_info *desc)``
0021
0022 Arguments
0023 ---------
0024
0025 ``fd``
0026 File descriptor returned by a previous call to :c:func:`open()`.
0027
0028 ``desc``
0029 Pointer to struct :c:type:`ca_descr_info`.
0030
0031 Description
0032 -----------
0033
0034 Returns information about all descrambler slots.
0035
0036 Return Value
0037 ------------
0038
0039 On success 0 is returned, and :c:type:`ca_descr_info` is filled.
0040
0041 On error -1 is returned, and the ``errno`` variable is set
0042 appropriately. The generic error codes are described at the
0043 :ref:`Generic Error Codes <gen-errors>` chapter.
