.. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later .. c:namespace:: DTV.ca

.. _CA_SET_DESCR:

============ CA_SET_DESCR

Name

CA_SET_DESCR

Synopsis

.. c:macro:: CA_SET_DESCR

int ioctl(fd, CA_SET_DESCR, struct ca_descr *desc)

Arguments

fd File descriptor returned by a previous call to :c:func:open().

msg Pointer to struct :c:type:ca_descr.

Description

CA_SET_DESCR is used for feeding descrambler CA slots with descrambling keys (referred as control words).

Return Value

On success 0 is returned.

On error -1 is returned, and the errno variable is set appropriately.

Generic error codes are described at the :ref:Generic Error Codes <gen-errors> chapter.