Date: Wed, 28 Jun 1995 09:20:01 +0300
From: eliz AT is DOT elta DOT co DOT il (Eli Zaretskii)
To: wilsont AT rahul DOT net
Subject: Re: Serial Port Interupt programming, ideas/help/info wanted...
Cc: djgpp AT sun DOT soe DOT clarkson DOT edu

> I wrote a program that creates two queues for the input and output
> on a serial port. This is handled in an interrupt.

The DJGPP FAQ list (available as faq102.zip from the same place you
get DJGPP) includes pointers to some interrupt-driven code which
works with DJGPP and which you could use as a start.  One of them is
the serial.c file from the LadyBug debugger.  The FAQ also discusses
the various problems with interrupt handling in Chapter 18.