mfi_lookup_drive
error = mfi_lookup_drive(fd, av[1], &device_id);
error = mfi_lookup_drive(fd, cp, &device_id);
error = mfi_lookup_drive(fd, av[1], &device_id);
error = mfi_lookup_drive(fd, drive, &device_id);
error = mfi_lookup_drive(fd, av[1], &device_id);
error = mfi_lookup_drive(fd, av[1], &device_id);
error = mfi_lookup_drive(fd, av[1], &device_id);
error = mfi_lookup_drive(fd, av[1], &device_id);
error = mfi_lookup_drive(fd, av[1], &device_id);
int mfi_lookup_drive(int fd, char *drive, uint16_t *device_id);