1COMEDI_DO_INSN(3) Comedi reference COMEDI_DO_INSN(3)
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6 comedi_do_insn - perform instruction
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9 #include <comedilib.h>
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11 int comedi_do_insn(comedi_t * device, comedi_insn * instruction);
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14 The function comedi_do_insn performs a single instruction.
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17 If successful, returns a non-negative number. For the case of INSN_READ
18 or INSN_WRITE instructions, comedi_do_insn returns the number of
19 samples read or written, which may be less than the number requested.
20 If there is an error, -1 is returned.
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23 David Schleef <ds@schleef.org>
24 Author.
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26 Frank Mori Hess <fmhess@users.sourceforge.net>
27 Author.
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29 Herman Bruyninckx <Herman.Bruyninckx@mech.kuleuven.ac.be>
30 Author.
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32 Bernd Porr <tech@linux-usb-daq.co.uk>
33 Author.
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35 Ian Abbott <abbotti@mev.co.uk>
36 Author.
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38 Éric Piel <piel@delmic.com>
39 Author.
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42 Copyright © 1998-2003 David Schleef
43 Copyright © 2001-2003, 2005, 2008 Frank Mori Hess
44 Copyright © 2002-2003 Herman Bruyninckx
45 Copyright © 2012 Bernd Porr
46 Copyright © 2012 Ian Abbott
47 Copyright © 2012, 2015 Éric Piel
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49 This document is part of Comedilib. In the context of this document,
50 the term "source code" as defined by the license is interpreted as the
51 XML source.
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53 This library is free software; you can redistribute it and/or modify it
54 under the terms of the GNU Lesser General Public License as published
55 by the Free Software Foundation, version 2.1 of the License.
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57 This library is distributed in the hope that it will be useful, but
58 WITHOUT ANY WARRANTY; without even the implied warranty of
59 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
60 General Public License for more details.
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62 You should have received a copy of the GNU Lesser General Public
63 License along with this library; if not, write to the Free Software
64 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
65 USA.
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70Comedi 05/11/2017 COMEDI_DO_INSN(3)