1COMEDI_SET_READ_SUBD(3) Comedi reference COMEDI_SET_READ_SUBD(3)
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6 comedi_set_read_subdevice - set streaming input subdevice
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9 #include <comedilib.h>
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11 int comedi_set_read_subdevice(comedi_t * device,
12 unsigned int subdevice);
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15 Works for Linux "in-tree" Comedi since kernel version 3.19.
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18 The function comedi_set_read_subdevice sets subdevice as the current
19 “read” subdevice if the subdevice supports streaming input commands.
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21 No action is performed if subdevice is already the current “read”
22 subdevice.
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24 Changes are local to the open file description for this device and have
25 no effect on other open file descriptions for the underlying device
26 node.
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29 On success, 0 is returned. On failure, -1 is returned.
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32 David Schleef <ds@schleef.org>
33 Author.
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35 Frank Mori Hess <fmhess@users.sourceforge.net>
36 Author.
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38 Herman Bruyninckx <Herman.Bruyninckx@mech.kuleuven.ac.be>
39 Author.
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41 Bernd Porr <tech@linux-usb-daq.co.uk>
42 Author.
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44 Ian Abbott <abbotti@mev.co.uk>
45 Author.
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47 Éric Piel <piel@delmic.com>
48 Author.
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51 Copyright © 1998-2003 David Schleef
52 Copyright © 2001-2003, 2005, 2008 Frank Mori Hess
53 Copyright © 2002-2003 Herman Bruyninckx
54 Copyright © 2012 Bernd Porr
55 Copyright © 2012 Ian Abbott
56 Copyright © 2012, 2015 Éric Piel
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58 This document is part of Comedilib. In the context of this document,
59 the term "source code" as defined by the license is interpreted as the
60 XML source.
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62 This library is free software; you can redistribute it and/or modify it
63 under the terms of the GNU Lesser General Public License as published
64 by the Free Software Foundation, version 2.1 of the License.
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66 This library is distributed in the hope that it will be useful, but
67 WITHOUT ANY WARRANTY; without even the implied warranty of
68 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
69 General Public License for more details.
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71 You should have received a copy of the GNU Lesser General Public
72 License along with this library; if not, write to the Free Software
73 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
74 USA.
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79Comedi 05/11/2017 COMEDI_SET_READ_SUBD(3)