57 lines
1.2 KiB
C
57 lines
1.2 KiB
C
/*
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* demo for changing between different (hardware-based) calibrations
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* Part of Comedilib
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*
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* Copyright (c) 1999,2000 David A. Schleef <ds@schleef.org>
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*
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* This file may be freely modified, distributed, and combined with
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* other software, as long as proper attribution is given in the
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* source code.
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*/
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/*
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* A little output demo
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*/
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#include <stdio.h>
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#include <comedilib.h>
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#include <fcntl.h>
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#include <unistd.h>
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#include <stdlib.h>
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#include <errno.h>
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#include <getopt.h>
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#include <ctype.h>
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#include "examples.h"
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comedi_t *device;
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int main(int argc, char *argv[])
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{
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lsampl_t data;
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int ret;
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struct parsed_options options;
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init_parsed_options(&options);
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parse_options(&options, argc, argv);
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device=comedi_open(options.filename);
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if(!device){
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comedi_perror(options.filename);
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exit(-1);
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}
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data = options.value;
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if(options.verbose){
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printf("writing %d to device=%s subdevice=%d channel=%d range=%d analog reference=%d\n",
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data, options.filename, options.subdevice, options.channel, options.range, options.aref);
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}
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ret = comedi_apply_calibration(device, options.subdevice, options.channel, options.range, options.aref, NULL);
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if(ret < 0){
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comedi_perror(options.filename);
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exit(0);
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}
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return 0;
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}
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