1 .. SPDX-License-Identifier: GFDL-1.1-no-invari 1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
2 .. c:namespace:: DTV.fe 2 .. c:namespace:: DTV.fe
3 3
4 .. _FE_DISEQC_SEND_BURST: 4 .. _FE_DISEQC_SEND_BURST:
5 5
6 ************************** 6 **************************
7 ioctl FE_DISEQC_SEND_BURST 7 ioctl FE_DISEQC_SEND_BURST
8 ************************** 8 **************************
9 9
10 Name 10 Name
11 ==== 11 ====
12 12
13 FE_DISEQC_SEND_BURST - Sends a 22KHz tone burs 13 FE_DISEQC_SEND_BURST - Sends a 22KHz tone burst for 2x1 mini DiSEqC satellite selection.
14 14
15 Synopsis 15 Synopsis
16 ======== 16 ========
17 17
18 .. c:macro:: FE_DISEQC_SEND_BURST 18 .. c:macro:: FE_DISEQC_SEND_BURST
19 19
20 ``int ioctl(int fd, FE_DISEQC_SEND_BURST, enum 20 ``int ioctl(int fd, FE_DISEQC_SEND_BURST, enum fe_sec_mini_cmd tone)``
21 21
22 Arguments 22 Arguments
23 ========= 23 =========
24 24
25 ``fd`` 25 ``fd``
26 File descriptor returned by :c:func:`open( 26 File descriptor returned by :c:func:`open()`.
27 27
28 ``tone`` 28 ``tone``
29 An integer enumered value described at :c: 29 An integer enumered value described at :c:type:`fe_sec_mini_cmd`.
30 30
31 Description 31 Description
32 =========== 32 ===========
33 33
34 This ioctl is used to set the generation of a 34 This ioctl is used to set the generation of a 22kHz tone burst for mini
35 DiSEqC satellite selection for 2x1 switches. T 35 DiSEqC satellite selection for 2x1 switches. This call requires
36 read/write permissions. 36 read/write permissions.
37 37
38 It provides support for what's specified at 38 It provides support for what's specified at
39 `Digital Satellite Equipment Control (DiSEqC) 39 `Digital Satellite Equipment Control (DiSEqC) - Simple "ToneBurst" Detection Circuit specification. <http://www.eutelsat.com/files/contributed/satellites/pdf/Diseqc/associated%20docs/simple_tone_burst_detec.pdf>`__
40 40
41 Return Value 41 Return Value
42 ============ 42 ============
43 43
44 On success 0 is returned. 44 On success 0 is returned.
45 45
46 On error -1 is returned, and the ``errno`` var 46 On error -1 is returned, and the ``errno`` variable is set
47 appropriately. 47 appropriately.
48 48
49 Generic error codes are described at the 49 Generic error codes are described at the
50 :ref:`Generic Error Codes <gen-errors>` chapte 50 :ref:`Generic Error Codes <gen-errors>` chapter.
Linux® is a registered trademark of Linus Torvalds in the United States and other countries.
TOMOYO® is a registered trademark of NTT DATA CORPORATION.