pci_fintek_rs485_config 1530 drivers/tty/serial/8250/8250_pci.c port->port.rs485_config = pci_fintek_rs485_config; pci_fintek_rs485_config 1602 drivers/tty/serial/8250/8250_pci.c pci_fintek_rs485_config(&port->port, NULL);