COM3 with Xenix 2.2.3

[RICHARD RONTELTAP]

[ Using COM3 by editing sioconf.c ]
 
Hey, that's interesting. I got an 4-port serial board lying here,
doing nothing, but what about the interrupts?
 
For standard COM1 and COM2 irq 4 and 3 are used. If I enable COM3 (and
maybe COM4), can I use the same interrupts, or do I have to use
another unused interrupt?
 
If the second is the case, which interrupts are 'free'?
 
Thanx in advance any tips!
 
Richard
(...!mcvax!neabbs!richard)