bionic (3) comedi_data_read_delayed.3.gz

Provided by: libcomedi-dev_0.10.2-4build7_amd64 bug

NAME
       comedi_data_read_delayed - read single sample from channel after delaying for specified settling time


SYNOPSIS
       #include <comedilib.h>

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


DESCRIPTION
       Similar to comedi_data_read except it will wait for the specified number of nanoseconds between setting
       the input channel and taking a sample. For analog inputs, most boards have a single analog to digital
       converter which is multiplexed to be able to read multiple channels. If the input is not allowed to
       settle after the multiplexer switches channels, the reading will be inaccurate. This function is useful
       for allowing a multiplexed analog input to settle when switching channels.

       Although the settling time is specified in nanoseconds, the actual settling time will be rounded up to
       the nearest microsecond.


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 © 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 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.