1 .. SPDX-License-Identifier: GFDL-1.1-no-invari
2 .. c:namespace:: DTV.ca
3
4 .. _CA_GET_MSG:
5
6 ==========
7 CA_GET_MSG
8 ==========
9
10 Name
11 ----
12
13 CA_GET_MSG
14
15 Synopsis
16 --------
17
18 .. c:macro:: CA_GET_MSG
19
20 ``int ioctl(fd, CA_GET_MSG, struct ca_msg *msg
21
22 Arguments
23 ---------
24
25 ``fd``
26 File descriptor returned by a previous call
27
28 ``msg``
29 Pointer to struct :c:type:`ca_msg`.
30
31 Description
32 -----------
33
34 Receives a message via a CI CA module.
35
36 .. note::
37
38 Please notice that, on most drivers, this i
39 the /dev/adapter?/ca? device node.
40
41 Return Value
42 ------------
43
44 On success 0 is returned.
45
46 On error -1 is returned, and the ``errno`` var
47 appropriately.
48
49 Generic error codes are described at the
50 :ref:`Generic Error Codes <gen-errors>` chapte
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