1 .. SPDX-License-Identifier: GFDL-1.1-no-invari 1 .. SPDX-License-Identifier: GFDL-1.1-no-invariants-or-later
2 .. c:namespace:: DTV.dmx 2 .. c:namespace:: DTV.dmx
3 3
4 .. _DMX_START: 4 .. _DMX_START:
5 5
6 ========= 6 =========
7 DMX_START 7 DMX_START
8 ========= 8 =========
9 9
10 Name 10 Name
11 ---- 11 ----
12 12
13 DMX_START 13 DMX_START
14 14
15 Synopsis 15 Synopsis
16 -------- 16 --------
17 17
18 .. c:macro:: DMX_START 18 .. c:macro:: DMX_START
19 19
20 ``int ioctl(int fd, DMX_START)`` 20 ``int ioctl(int fd, DMX_START)``
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 Description 28 Description
29 ----------- 29 -----------
30 30
31 This ioctl call is used to start the actual fi 31 This ioctl call is used to start the actual filtering operation defined
32 via the ioctl calls :ref:`DMX_SET_FILTER` or : 32 via the ioctl calls :ref:`DMX_SET_FILTER` or :ref:`DMX_SET_PES_FILTER`.
33 33
34 Return Value 34 Return Value
35 ------------ 35 ------------
36 36
37 On success 0 is returned. 37 On success 0 is returned.
38 38
39 On error -1 is returned, and the ``errno`` var 39 On error -1 is returned, and the ``errno`` variable is set
40 appropriately. 40 appropriately.
41 41
42 .. tabularcolumns:: |p{2.5cm}|p{15.0cm}| 42 .. tabularcolumns:: |p{2.5cm}|p{15.0cm}|
43 43
44 .. flat-table:: 44 .. flat-table::
45 :header-rows: 0 45 :header-rows: 0
46 :stub-columns: 0 46 :stub-columns: 0
47 47
48 - .. row 1 48 - .. row 1
49 49
50 - ``EINVAL`` 50 - ``EINVAL``
51 51
52 - Invalid argument, i.e. no filtering 52 - Invalid argument, i.e. no filtering parameters provided via the
53 :ref:`DMX_SET_FILTER` or :ref:`DMX_S 53 :ref:`DMX_SET_FILTER` or :ref:`DMX_SET_PES_FILTER` ioctls.
54 54
55 - .. row 2 55 - .. row 2
56 56
57 - ``EBUSY`` 57 - ``EBUSY``
58 58
59 - This error code indicates that there 59 - This error code indicates that there are conflicting requests.
60 There are active filters filtering d 60 There are active filters filtering data from another input source.
61 Make sure that these filters are sto 61 Make sure that these filters are stopped before starting this
62 filter. 62 filter.
63 63
64 The generic error codes are described at the 64 The generic error codes are described at the
65 :ref:`Generic Error Codes <gen-errors>` chapte 65 :ref:`Generic Error Codes <gen-errors>` chapter.
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