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       comedi_find_range - search for range


       #include <comedilib.h>

       int  comedi_find_range  (comedi_t  *  device,  unsigned  int subdevice,
       unsigned int channel, unsigned int unit, double min, double max);


       The function comedi_find_range() tries to locate the optimal (smallest)
       range  for  the  channel  chan  belonging  to a subdevice of the comedi
       device device, that includes both min and max in units.  If a  matching
       range  is  found,  the  index of the matching range is returned.  If no
       matching range is available, the function returns -1.

                                28 October 2007