autoconfig_read_divisor_id 931 drivers/tty/serial/8250/8250_port.c id1 = autoconfig_read_divisor_id(up); autoconfig_read_divisor_id 984 drivers/tty/serial/8250/8250_port.c if (autoconfig_read_divisor_id(up) == 0x0201 && size_fifo(up) == 16)