154f38fcaSMauro Carvalho Chehab.. Permission is granted to copy, distribute and/or modify this 254f38fcaSMauro Carvalho Chehab.. document under the terms of the GNU Free Documentation License, 354f38fcaSMauro Carvalho Chehab.. Version 1.1 or any later version published by the Free Software 454f38fcaSMauro Carvalho Chehab.. Foundation, with no Invariant Sections, no Front-Cover Texts 554f38fcaSMauro Carvalho Chehab.. and no Back-Cover Texts. A copy of the license is included at 654f38fcaSMauro Carvalho Chehab.. Documentation/userspace-api/media/fdl-appendix.rst. 754f38fcaSMauro Carvalho Chehab.. 854f38fcaSMauro Carvalho Chehab.. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections 954f38fcaSMauro Carvalho Chehab 1054f38fcaSMauro Carvalho Chehab.. _CA_GET_DESCR_INFO: 1154f38fcaSMauro Carvalho Chehab 1254f38fcaSMauro Carvalho Chehab================= 1354f38fcaSMauro Carvalho ChehabCA_GET_DESCR_INFO 1454f38fcaSMauro Carvalho Chehab================= 1554f38fcaSMauro Carvalho Chehab 1654f38fcaSMauro Carvalho ChehabName 1754f38fcaSMauro Carvalho Chehab---- 1854f38fcaSMauro Carvalho Chehab 1954f38fcaSMauro Carvalho ChehabCA_GET_DESCR_INFO 2054f38fcaSMauro Carvalho Chehab 2154f38fcaSMauro Carvalho Chehab 2254f38fcaSMauro Carvalho ChehabSynopsis 2354f38fcaSMauro Carvalho Chehab-------- 2454f38fcaSMauro Carvalho Chehab 2554f38fcaSMauro Carvalho Chehab.. c:function:: int ioctl(fd, CA_GET_DESCR_INFO, struct ca_descr_info *desc) 2654f38fcaSMauro Carvalho Chehab :name: CA_GET_DESCR_INFO 2754f38fcaSMauro Carvalho Chehab 2854f38fcaSMauro Carvalho ChehabArguments 2954f38fcaSMauro Carvalho Chehab--------- 3054f38fcaSMauro Carvalho Chehab 3154f38fcaSMauro Carvalho Chehab``fd`` 3254f38fcaSMauro Carvalho Chehab File descriptor returned by a previous call to :c:func:`open() <dvb-ca-open>`. 3354f38fcaSMauro Carvalho Chehab 3454f38fcaSMauro Carvalho Chehab``desc`` 3554f38fcaSMauro Carvalho Chehab Pointer to struct :c:type:`ca_descr_info`. 3654f38fcaSMauro Carvalho Chehab 3754f38fcaSMauro Carvalho ChehabDescription 3854f38fcaSMauro Carvalho Chehab----------- 3954f38fcaSMauro Carvalho Chehab 4054f38fcaSMauro Carvalho ChehabReturns information about all descrambler slots. 4154f38fcaSMauro Carvalho Chehab 4254f38fcaSMauro Carvalho ChehabReturn Value 4354f38fcaSMauro Carvalho Chehab------------ 4454f38fcaSMauro Carvalho Chehab 4554f38fcaSMauro Carvalho ChehabOn success 0 is returned, and :c:type:`ca_descr_info` is filled. 4654f38fcaSMauro Carvalho Chehab 4754f38fcaSMauro Carvalho ChehabOn error -1 is returned, and the ``errno`` variable is set 4854f38fcaSMauro Carvalho Chehabappropriately. The generic error codes are described at the 4954f38fcaSMauro Carvalho Chehab:ref:`Generic Error Codes <gen-errors>` chapter. 50