1.. Permission is granted to copy, distribute and/or modify this
2.. document under the terms of the GNU Free Documentation License,
3.. Version 1.1 or any later version published by the Free Software
4.. Foundation, with no Invariant Sections, no Front-Cover Texts
5.. and no Back-Cover Texts. A copy of the license is included at
6.. Documentation/userspace-api/media/fdl-appendix.rst.
7..
8.. TODO: replace it to GFDL-1.1-or-later WITH no-invariant-sections
9
10.. _FE_DISHNETWORK_SEND_LEGACY_CMD:
11
12******************************
13FE_DISHNETWORK_SEND_LEGACY_CMD
14******************************
15
16Name
17====
18
19FE_DISHNETWORK_SEND_LEGACY_CMD
20
21
22Synopsis
23========
24
25.. c:function:: int  ioctl(int fd, FE_DISHNETWORK_SEND_LEGACY_CMD, unsigned long cmd)
26    :name: FE_DISHNETWORK_SEND_LEGACY_CMD
27
28
29Arguments
30=========
31
32``fd``
33    File descriptor returned by :c:func:`open() <dvb-fe-open>`.
34
35``cmd``
36    Sends the specified raw cmd to the dish via DISEqC.
37
38
39Description
40===========
41
42.. warning::
43   This is a very obscure legacy command, used only at stv0299
44   driver. Should not be used on newer drivers.
45
46It provides a non-standard method for selecting Diseqc voltage on the
47frontend, for Dish Network legacy switches.
48
49As support for this ioctl were added in 2004, this means that such
50dishes were already legacy in 2004.
51
52
53Return Value
54============
55
56On success 0 is returned.
57
58On error -1 is returned, and the ``errno`` variable is set
59appropriately.
60
61Generic error codes are described at the
62:ref:`Generic Error Codes <gen-errors>` chapter.
63