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1.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later2.. c:namespace:: DTV.ca3 4.. _CA_RESET:5 6========7CA_RESET8========9 10Name11----12 13CA_RESET14 15Synopsis16--------17 18.. c:macro:: CA_RESET19 20``int ioctl(fd, CA_RESET)``21 22Arguments23---------24 25``fd``26 File descriptor returned by a previous call to :c:func:`open()`.27 28Description29-----------30 31Puts the Conditional Access hardware on its initial state. It should32be called before start using the CA hardware.33 34Return Value35------------36 37On success 0 is returned.38 39On error -1 is returned, and the ``errno`` variable is set40appropriately.41 42Generic error codes are described at the43:ref:`Generic Error Codes <gen-errors>` chapter.44