NAME

       comedi_from_phys - convert physical units to sample

SYNOPSIS

       #include <comedilib.h>

       lsampl_t comedi_from_phys(double data, comedi_range * range, lsampl_t maxdata);

DESCRIPTION

       Converts parameter data given in physical units (double) into sample values (lsampl_t,
       between 0 and maxdata). The parameter range represents the conversion information to use,
       and the parameter maxdata represents the maximum possible data value for the channel that
       the data will be written to. The mapping between physical units and raw data is linear and
       assumes that the converter has ideal characteristics.

       Conversion is not affected by out-of-range behavior. Out-of-range data parameters are
       silently truncated to the range 0 to maxdata.

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.

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

       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.