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