typedef struct {/ * pointing device * /
  PerPntData data; / * Current peripheral data * /
  PerPntData push; / * Last unpressed current push button * /
  PerId id; / * Peripheral ID * /
}PerPntInfo;

 typedef struct {/ * Keyboard device * /
  PerKbdData data; / * Currently peripheral data * /
  PerKbdData push; / * Last unpressed current push button * /
  PerId id; / * Peripheral ID * /
}PerKbdInfo;

 typedef struct {/ * Megadrive 3 button pad * /
  PerM3bpData data; / * Currently peripheral data * /
  PerM3bpData push; / * Last unpressed current push button * /
  PerId id; / * Peripheral ID * /
}PerM3bpInfo;

 typedef struct {/ * Megadrive 6 button pad * /
  PerM6bpData data; / * Currently peripheral data * /
  PerM6bpData push; / * Last unpressed current push button * /
  PerId id; / * Peripheral ID * /
}PerM6bpInfo;