sunserial_register_minors
ret = sunserial_register_minors(&serial8250_reg, UART_NR);
EXPORT_SYMBOL(sunserial_register_minors);
err = sunserial_register_minors(&sunhv_reg, 1);
err = sunserial_register_minors(&sunsab_reg, num_channels);
err = sunserial_register_minors(&sunsu_reg, num_uart);
err = sunserial_register_minors(&sunzilog_reg,
extern int sunserial_register_minors(struct uart_driver *, int);