martin@euterpe.owl.de (Martin Husemann) asked:

> Is anybody working on (or already did) improving com.c ?
> It works quite reliable for me on my box at work, which has fifo-chips.
> Only a few silo overflows under heavy load, nothing serious. But it doesnt
> work acceptable on this notebook - no fifo's and no chance to change
> the chips.

 To my knowledge there two improved com drivers:
1. the sio package by Bill Wells (bill@twwells.com). You can find an
   article about it in the November issue of Dr. Dobbs. There's an
   old beta in the pub/ddj/packages/sio directory on ftp.mv.com that
   will only work for FreeBSD. This package has been ported to NetBSD.
   A couple of weeks ago Bill Wells said on the port-i386 list something
   like "If you really want it _now_, ask me".
   I've only seen the old beta from ftp.mv.com and it looks good to me
   (bidirectional, well structured, ...).

2. a hacked com.c by me (Onno van der Linden), it's based on the fast-
   interrupt patches Bill Wells sent to port-i386 a couple of weeks ago
   and the sparc and pmax serial drivers. I've done 115200 bps transfers
   with it over a null modem cable between two 16450's. Haven't done real
   stress-testing with it. If anyone wants it, send a mail.

Onno van der Linden    c/o     vdlinden@fwi.uva.nl (Frank van der Linden)