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

.. _CA_GET_CAP:

========== CA_GET_CAP

Name

CA_GET_CAP

Synopsis

.. c:macro:: CA_GET_CAP

int ioctl(fd, CA_GET_CAP, struct ca_caps *caps)

Arguments

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

caps Pointer to struct :c:type:ca_caps.

Description

Queries the Kernel for information about the available CA and descrambler slots, and their types.

Return Value

On success 0 is returned and :c:type:ca_caps is filled.

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

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