Mark K. Kim wrote:
>The standard is:
> COM1 takes IRQ4
> COM2 takes IRQ3
> COM3 takes IRQ4
> COM4 takes IRQ3
>
>-Mark
>
Linux dev MS dev IRQ Address
/dev/ttyS0 COM1 4 0x3F8
/dev/ttyS1 COM2 3 0x2F8
/dev/ttyS2 COM3 5 0x3E8
/dev/ttyS3 COM4 7 0x2E8
/dev/lp0 LPT1 7
/dev/lp1 LPT2 5
Mark is correct as far as the book but this is the more common
setup for devices with many serial devices. Avoid the printer
conflicts listed above though. Network, sound, and specialized
controlers can use almost any IRQ they want.
