ttyS0 at I/O 0x3f8 (irq = 4) is a 16550A
ttyS1 at I/O 0x2f8 (irq = 3) is a 16550A
ttyS14 at I/O 0x5000 (irq = 20) is a 16550A
ttyS15 at I/O 0x5008 (irq = 20) is a 16550A
