1COMEDI_DATA_WRITE(3)           Comedi reference           COMEDI_DATA_WRITE(3)
2
3
4

NAME

6       comedi_data_write - write single sample to channel
7

SYNOPSIS

9       #include <comedilib.h>
10
11       int comedi_data_write(comedi_t * device, unsigned int subdevice,
12                             unsigned int channel, unsigned int range,
13                             unsigned int aref, lsampl_t data);
14

DESCRIPTION

16       Writes a single sample on the channel that is specified by the Comedi
17       device device, the subdevice subdevice, and the channel channel. If
18       appropriate, the device is configured to use range specification range
19       and analog reference type aref. Analog reference types that are not
20       supported by the device are silently ignored.
21
22       The function comedi_data_write writes the data value specified by the
23       parameter data to the specified channel.
24

RETURN VALUE

26       On success, comedi_data_write returns 1 (the number of samples
27       written). If there is an error, -1 is returned.
28

AUTHORS

30       David Schleef <ds@schleef.org>
31           Author.
32
33       Frank Mori Hess <fmhess@users.sourceforge.net>
34           Author.
35
36       Herman Bruyninckx <Herman.Bruyninckx@mech.kuleuven.ac.be>
37           Author.
38
39       Bernd Porr <tech@linux-usb-daq.co.uk>
40           Author.
41
42       Ian Abbott <abbotti@mev.co.uk>
43           Author.
44
45       Éric Piel <piel@delmic.com>
46           Author.
47

49       Copyright © 1998-2003 David Schleef
50       Copyright © 2001-2003, 2005, 2008 Frank Mori Hess
51       Copyright © 2002-2003 Herman Bruyninckx
52       Copyright © 2012 Bernd Porr
53       Copyright © 2012 Ian Abbott
54       Copyright © 2012, 2015 Éric Piel
55
56       This document is part of Comedilib. In the context of this document,
57       the term "source code" as defined by the license is interpreted as the
58       XML source.
59
60       This library is free software; you can redistribute it and/or modify it
61       under the terms of the GNU Lesser General Public License as published
62       by the Free Software Foundation, version 2.1 of the License.
63
64       This library is distributed in the hope that it will be useful, but
65       WITHOUT ANY WARRANTY; without even the implied warranty of
66       MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU Lesser
67       General Public License for more details.
68
69       You should have received a copy of the GNU Lesser General Public
70       License along with this library; if not, write to the Free Software
71       Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
72       USA.
73
74
75
76
77Comedi                            05/11/2017              COMEDI_DATA_WRITE(3)
Impressum