text: #include <iomanip>
  #include <iostream>
  #include <unistd.h>
  #include <stdio.h>
  #include <getopt.h>
  #include <signal.h>
  #include <chrono>
  #include <linux/usb/ch9.h>
  
  extern int verbose_level;
  extern bool please_stop_ep0;
  extern bool please_stop_eps;
  
  extern int desired_configuration;
  