NAME

       comedi_data_write - write single sample to channel

SYNOPSIS

       #include <comedilib.h>

       int comedi_data_write(comedi_t * device, unsigned int subdevice, unsigned int channel,
                             unsigned int range, unsigned int aref, lsampl_t data);

DESCRIPTION

       Writes a single sample on the channel that is specified by the Comedi device device, the
       subdevice subdevice, and the channel channel. If appropriate, the device is configured to
       use range specification range and analog reference type aref. Analog reference types that
       are not supported by the device are silently ignored.

       The function comedi_data_write writes the data value specified by the parameter data to
       the specified channel.

RETURN VALUE

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

AUTHORS

       David Schleef <ds@schleef.org>
           Author.

       Frank Mori Hess <fmhess@users.sourceforge.net>
           Author.

       Herman Bruyninckx <Herman.Bruyninckx@mech.kuleuven.ac.be>
           Author.

       Bernd Porr <tech@linux-usb-daq.co.uk>
           Author.

       Ian Abbott <abbotti@mev.co.uk>
           Author.

       Éric Piel <piel@delmic.com>
           Author.

COPYRIGHT

       Copyright © 1998-2003 David Schleef
       Copyright © 2001-2003, 2005, 2008 Frank Mori Hess
       Copyright © 2002-2003 Herman Bruyninckx
       Copyright © 2012 Bernd Porr
       Copyright © 2012 Ian Abbott
       Copyright © 2012, 2015 Éric Piel

       This document is part of Comedilib. In the context of this document, the term "source
       code" as defined by the license is interpreted as the XML source.

       This library is free software; you can redistribute it and/or modify it under the terms of
       the GNU Lesser General Public License as published by the Free Software Foundation,
       version 2.1 of the License.

       This library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY;
       without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
       See the GNU Lesser General Public License for more details.

       You should have received a copy of the GNU Lesser General Public License along with this
       library; if not, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330,
       Boston, MA 02111-1307 USA.