1 .. -*- coding: utf-8; mode: rst -*-
18 .. c:function:: int ioctl(fd, CA_GET_CAP, struct ca_caps *caps)
26 File descriptor returned by a previous call to :c:func:`open() <dvb-ca-open>`.
29 Pointer to struct :c:type:`ca_caps`.
34 Queries the Kernel for information about the available CA and descrambler
35 slots, and their types.
40 On success 0 is returned and :c:type:`ca_caps` is filled.
42 On error, -1 is returned and the ``errno`` variable is set
45 The generic error codes are described at the
46 :ref:`Generic Error Codes <gen-errors>` chapter.