1COMEDI_DIO_CONFIG(3) Comedi reference COMEDI_DIO_CONFIG(3)
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6 comedi_dio_config - change input/output properties of channel
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9 #include <comedilib.h>
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11 int comedi_dio_config(comedi_t * device, unsigned int subdevice,
12 unsigned int channel, unsigned int direction);
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15 The function comedi_dio_config configures individual channels in a
16 digital I/O subdevice to be either input or output, depending on the
17 value of direction. Valid directions are COMEDI_INPUT or COMEDI_OUTPUT.
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19 Depending on the characteristics of the hardware device, multiple
20 channels might be grouped together in hardware when configuring the
21 input/output direction. In this case, a single call to
22 comedi_dio_config for any channel in the group will affect the entire
23 group.
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26 If successful, 0 is returned, otherwise -1.
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29 David Schleef <ds@schleef.org>
30 Author.
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32 Frank Mori Hess <fmhess@users.sourceforge.net>
33 Author.
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35 Herman Bruyninckx <Herman.Bruyninckx@mech.kuleuven.ac.be>
36 Author.
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38 Bernd Porr <tech@linux-usb-daq.co.uk>
39 Author.
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41 Ian Abbott <abbotti@mev.co.uk>
42 Author.
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44 Éric Piel <piel@delmic.com>
45 Author.
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48 Copyright © 1998-2003 David Schleef
49 Copyright © 2001-2003, 2005, 2008 Frank Mori Hess
50 Copyright © 2002-2003 Herman Bruyninckx
51 Copyright © 2012 Bernd Porr
52 Copyright © 2012 Ian Abbott
53 Copyright © 2012, 2015 Éric Piel
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55 This document is part of Comedilib. In the context of this document,
56 the term "source code" as defined by the license is interpreted as the
57 XML source.
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59 This library is free software; you can redistribute it and/or modify it
60 under the terms of the GNU Lesser General Public License as published
61 by the Free Software Foundation, version 2.1 of the License.
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63 This library is distributed in the hope that it will be useful, but
64 WITHOUT ANY WARRANTY; without even the implied warranty of
65 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
66 General Public License for more details.
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68 You should have received a copy of the GNU Lesser General Public
69 License along with this library; if not, write to the Free Software
70 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
71 USA.
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76Comedi 05/11/2017 COMEDI_DIO_CONFIG(3)