61 lines
1.0 KiB
C
61 lines
1.0 KiB
C
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#include <stdio.h>
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#include <stdlib.h>
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#include <time.h>
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#include <unistd.h> //Used for UART
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#include <fcntl.h> //Used for UART
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#include <errno.h>
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#include "serial.h"
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int verbosity;
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/* ----------------------------------------------------- */
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int openserial(char *dev)
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{
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int uart;
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fprintf(stderr, "%s ( %s )\n", __func__, dev);
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uart = open(dev, O_RDONLY | O_NOCTTY);
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if (uart < 0)
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{
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perror("unable to open uart");
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return -1;
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}
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return uart;
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}
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/* ----------------------------------------------------- */
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int main (int argc, char *argv[])
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{
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int serial_in, foo;
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unsigned char byte;
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if (2 != argc) {
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fprintf(stderr, "device name ?\n");
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return 2;
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}
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serial_in = openserial(argv[1]);
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fprintf(stderr, "prepare uart -> %d\n", serial_in);
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if (serial_in < 0) {
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exit(1);
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}
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for (;;) {
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foo = read(serial_in, &byte, 1);
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if (1 != foo) {
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fprintf(stderr, "get byte : err is %d\n", errno);
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}
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else {
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printf("%9ld %02x/%d\n", time(NULL), byte, byte);
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}
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}
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return 0;
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}
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/* ----------------------------------------------------- */
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