1COMEDI_FILENO(3) Comedi reference COMEDI_FILENO(3)
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6 comedi_fileno - get file descriptor for open Comedilib device
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9 #include <comedilib.h>
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11 int comedi_fileno(comedi_t * device);
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14 The function comedi_fileno returns the file descriptor for the device
15 device. This descriptor can then be used as the file descriptor
16 parameter of read, write, etc. This function is intended to mimic the
17 standard C library function fileno.
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19 The returned file descriptor should not be closed, and will become
20 invalid when comedi_close is called on device.
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23 A file descriptor, or -1 on error.
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26 David Schleef <ds@schleef.org>
27 Author.
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29 Frank Mori Hess <fmhess@users.sourceforge.net>
30 Author.
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32 Herman Bruyninckx <Herman.Bruyninckx@mech.kuleuven.ac.be>
33 Author.
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35 Bernd Porr <tech@linux-usb-daq.co.uk>
36 Author.
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38 Ian Abbott <abbotti@mev.co.uk>
39 Author.
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41 Éric Piel <piel@delmic.com>
42 Author.
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45 Copyright © 1998-2003 David Schleef
46 Copyright © 2001-2003, 2005, 2008 Frank Mori Hess
47 Copyright © 2002-2003 Herman Bruyninckx
48 Copyright © 2012 Bernd Porr
49 Copyright © 2012 Ian Abbott
50 Copyright © 2012, 2015 Éric Piel
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52 This document is part of Comedilib. In the context of this document,
53 the term "source code" as defined by the license is interpreted as the
54 XML source.
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56 This library is free software; you can redistribute it and/or modify it
57 under the terms of the GNU Lesser General Public License as published
58 by the Free Software Foundation, version 2.1 of the License.
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60 This library is distributed in the hope that it will be useful, but
61 WITHOUT ANY WARRANTY; without even the implied warranty of
62 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
63 General Public License for more details.
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65 You should have received a copy of the GNU Lesser General Public
66 License along with this library; if not, write to the Free Software
67 Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
68 USA.
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73Comedi 05/11/2017 COMEDI_FILENO(3)