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From: martelli@cadlab.sublink.ORG (Alex Martelli)
Newsgroups: comp.dcom.modems
Subject: Re: 16550A UART, Needed? (HOW CAN I WRITE AN APP. FOR...)
Message-ID: <865@cadlab.sublink.ORG>
Date: 24 May 91 08:01:25 GMT
References: <1991May21.163229.6631@netcom.COM> <1991May22.000143.3599@qualcomm.com> <6518@vela.acs.oakland.edu>
Organization: CAD.LAB, Bologna, Italia
Lines: 21

rdthomps@vela.acs.oakland.edu (Robert D. Thompson) writes:
	...
:	Can anyone provide information on how to write a communications
:	application that will support the 16550A?

(Software-reuse fanaticism warning:-)  Grab a copy of the appropriate FOSSIL
driver, such as the BNU TSR program for Dos, from your nearest Fidonet node,
and program to its interface, which is very simple; IT will support 16550's
FIFOs for you.  I think you can also find BNU on simtel.
Similarly, if you're on Unix, grab the FAS208 ('Final Async Solution') device
driver, and configure *that* into your kernel; then, in your application,
just read and write the /dev/ttywhatever - FAS will exploit the 16550 itself.

In general, appropriate support for clever (or braindamaged, for that matter)
hardware is in the *device drivers*; *application* programmers should be able
to stick to *application* concerns...
-- 
Alex Martelli - CAD.LAB s.p.a., v. Stalingrado 53, Bologna, Italia
Email: (work:) martelli@cadlab.sublink.org, (home:) alex@am.sublink.org
Phone: (work:) ++39 (51) 371099, (home:) ++39 (51) 250434; 
Fax: ++39 (51) 366964 (work only), Fidonet: 332/407.314 (home only).