Using COM3 under SCO XENIX

Karl-P. Huestegge karl at robot.uucp
Sat Sep 22 13:04:36 AEST 1990


In <402 at tygra.UUCP> cat at tygra.UUCP (CAT-TALK Maint. Account) writes:

>XENIX wont be able to see the ports if they're not listed in the CMOS
>config. 

Neither DOS nor XENIX holds any information about the COM ports
in CMOS.

DOS-BIOS supports only COM1 and COM2.

Xenix isn't interested in the COM-port BIOS routines. It has special
device drivers for the ports already built into the kernel.

The kernel support for COM3 and COM4 is just commented out in the
/usr/sys/io/sioconf.c - file.

Karl-Peter Huestegge

-- 
Karl-Peter Huestegge                       karl at robot.UUCP
Niedstr. 19                                (karl at netmbx.UUCP)
1 Berlin Friedenau                         ..tmpmbx!einoed!utopia!robot!karl
+49 (0)30-851 81 98



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