1COMEDI_GET_READ_SUBD(3) Comedi reference COMEDI_GET_READ_SUBD(3)
2
3
4
6 comedi_get_read_subdevice - find streaming input subdevice
7
9 #include <comedilib.h>
10
11 int comedi_get_read_subdevice(comedi_t * device);
12
14 The function comedi_get_read_subdevice returns the index of the
15 subdevice whose streaming input buffer is currently accessible through
16 the device device, if there is one.
17
19 On success, comedi_get_read_subdevicereturns the index of the current
20 “read” subdevice if there is one, or -1 if there is no “read”
21 subdevice. On failure, -1 is returned.
22
24 David Schleef <ds@schleef.org>
25 Author.
26
27 Frank Mori Hess <fmhess@users.sourceforge.net>
28 Author.
29
30 Herman Bruyninckx <Herman.Bruyninckx@mech.kuleuven.ac.be>
31 Author.
32
33 Bernd Porr <tech@linux-usb-daq.co.uk>
34 Author.
35
36 Ian Abbott <abbotti@mev.co.uk>
37 Author.
38
39 Éric Piel <piel@delmic.com>
40 Author.
41
43 Copyright © 1998-2003 David Schleef
44 Copyright © 2001-2003, 2005, 2008 Frank Mori Hess
45 Copyright © 2002-2003 Herman Bruyninckx
46 Copyright © 2012 Bernd Porr
47 Copyright © 2012 Ian Abbott
48 Copyright © 2012, 2015 Éric Piel
49
50 This document is part of Comedilib. In the context of this document,
51 the term "source code" as defined by the license is interpreted as the
52 XML source.
53
54 This library is free software; you can redistribute it and/or modify it
55 under the terms of the GNU Lesser General Public License as published
56 by the Free Software Foundation, version 2.1 of the License.
57
58 This library is distributed in the hope that it will be useful, but
59 WITHOUT ANY WARRANTY; without even the implied warranty of
60 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
61 General Public License for more details.
62
63 You should have received a copy of the GNU Lesser General Public
64 License along with this library; if not, write to the Free Software
65 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
66 USA.
67
68
69
70
71Comedi 05/11/2017 COMEDI_GET_READ_SUBD(3)