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       comedi_from_phys - convert physical units to sample


       #include <comedilib.h>

       lsampl_t  comedi_from_phys (double data, comedi_range * range, lsampl_t


       Converts data  given  in  physical  units  (data)  into  sample  values
       (lsampl_t,  between  0  and maxdata).  The parameter rng 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.

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

                                28 October 2007