1 .. SPDX-License-Identifier: GFDL-1.1-no-invari
2 .. c:namespace:: DTV.dmx
3
4 .. _dmx_fopen:
5
6 =======================
7 Digital TV demux open()
8 =======================
9
10 Name
11 ----
12
13 Digital TV demux open()
14
15 Synopsis
16 --------
17
18 .. c:function:: int open(const char *deviceNam
19
20 Arguments
21 ---------
22
23 ``name``
24 Name of specific Digital TV demux device.
25
26 ``flags``
27 A bit-wise OR of the following flags:
28
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30
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35
36 -
37 - ``O_RDONLY``
38 - read-only access
39
40 -
41 - ``O_RDWR``
42 - read/write access
43
44 -
45 - ``O_NONBLOCK``
46 - open in non-blocking mode
47 (blocking mode is the default)
48
49 Description
50 -----------
51
52 This system call, used with a device name of `
53 allocates a new filter and returns a handle wh
54 subsequent control of that filter. This call h
55 filter to be used, i.e. every returned file de
56 a single filter. ``/dev/dvb/adapter?/dvr?`` is
57 for retrieving Transport Streams for digital v
58 reading from this device a transport stream co
59 all PES filters set in the corresponding demux
60 (``/dev/dvb/adapter?/demux?``) having the outp
61 A recorded Transport Stream is replayed by wri
62
63 The significance of blocking or non-blocking m
64 documentation for functions where there is a d
65 affect the semantics of the ``open()`` call it
66 in blocking mode can later be put into non-blo
67 using the ``F_SETFL`` command of the fcntl sys
68
69 Return Value
70 ------------
71
72 On success 0 is returned.
73
74 On error -1 is returned, and the ``errno`` var
75 appropriately.
76
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83
84 - - ``EMFILE``
85 - "Too many open files", i.e. no more
86
87 The generic error codes are described at the
88 :ref:`Generic Error Codes <gen-errors>` chapte
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