#include <sys/time.h>
#include <stdio.h>
+#include <stdlib.h>
#include <unistd.h>
#include <ftdi.h>
{
struct ftdi_context ftdic;
int i, t;
- char *txbuf;
- char *rxbuf;
+ unsigned char *txbuf;
+ unsigned char *rxbuf;
double start, duration, plan;
// default values