text: /*************************************************************************\
  * Copyright (c) 2002 The University of Chicago, as Operator of Argonne
  *     National Laboratory.
  * Copyright (c) 2002 The Regents of the University of California, as
  *     Operator of Los Alamos National Laboratory.
  * EPICS BASE Versions 3.13.7
  * and higher are distributed subject to a Software License Agreement found
  * in file LICENSE that is included with this distribution. 
  \*************************************************************************/
  /* devHistogramSoft.c */
  /* base/src/dev $Revision-Id$ */
  /*
   *      Author:		Janet Anderson
   *      Date:		07/02/91
   */
  #include <stdlib.h>
  #include <stdio.h>
  #include <string.h>
  
  #include "alarm.h"
  #include "cvtTable.h"
  #include "dbDefs.h"
  #include "dbAccess.h"
  #include "recGbl.h"
  #include "recSup.h"
  #include "devSup.h"
  #include "link.h"
  #include "histogramRecord.h"
  #include "epicsExport.h"
  
  /* Create the dset for devHistogramSoft */
  static long init_record(histogramRecord *prec);
  static long read_histogram(histogramRecord *prec);
  struct {
  	long		number;
  	DEVSUPFUN	report;
  	DEVSUPFUN	init;
  	DEVSUPFUN	init_record;
  	DEVSUPFUN	get_ioint_info;
  	DEVSUPFUN	read_histogram;
  	DEVSUPFUN	special_linconv;
  }devHistogramSoft={
  	6,
  	NULL,
  	NULL,
  	init_record,
  	NULL,
  	read_histogram,
  	NULL
  };
  epicsExportAddress(dset,devHistogramSoft);
  
  static long init_record(histogramRecord	*prec)
  {
      /* histogram.svl must be a CONSTANT or a PV_LINK or a DB_LINK or a CA_LINK*/
      switch (prec->svl.type) {
      case (CONSTANT) :
          if(recGblInitConstantLink(&prec->svl,DBF_DOUBLE,&prec->sgnl))
              prec->udf = FALSE;
  	break;
      case (PV_LINK) :
      case (DB_LINK) :
      case (CA_LINK) :
  	break;
      default :
  	recGblRecordError(S_db_badField,(void *)prec,
  		"devHistogramSoft (init_record) Illegal SVL field");
  	return(S_db_badField);
      }
      return 0;
  }
  
  static long read_histogram(histogramRecord *prec)
  {
      dbGetLink(&prec->svl, DBR_DOUBLE, &prec->sgnl, 0, 0);
      return 0; /*add count*/
  }
  