#define nDEBUG

void print_array(unsigned char* buf, int size);
int writeUsb(unsigned char *message);
int readUsb();

libusb_device_handle* dev_handle;
const uint16_t VID = 0x048d; // REAL
const uint16_t PID = 0x5711; // REAL
//const uint16_t VID = 0x0a5c;
//const uint16_t PID = 0x2101;
unsigned int TIMEOUT = 2000;
int counter; 
int limit;