old_fcr 810 drivers/tty/serial/8250/8250_port.c unsigned char old_fcr, old_mcr, old_lcr; old_fcr 816 drivers/tty/serial/8250/8250_port.c old_fcr = serial_in(up, UART_FCR); old_fcr 831 drivers/tty/serial/8250/8250_port.c serial_out(up, UART_FCR, old_fcr);