Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ames!amdahl!pyramid!ncc!alberta!myrias!cg
From: cg@myrias.UUCP (Chris Gray)
Newsgroups: comp.sys.amiga.tech
Subject: Re: DTR and serial.device
Summary: there WAS a problem (at least on my A1000)
Keywords: DTR serial
Message-ID: <852@myrias.UUCP>
Date: 10 Feb 89 02:10:43 GMT
References: <11543@gryphon.COM> <5882@cbmvax.UUCP>
Organization: Myrias Research Corporation
Lines: 19

In article <5882@cbmvax.UUCP> bryce@cbmvax.UUCP (Bryce Nesbitt) writes:

In replying to a question on how to lower DTR, Bryce writes:

>Close the device, then reopen it.  (include error checking!)
>This will drop then raise DTR.
>Eventually there will be a better way... but this one works for all versions
>of the serial.device back to V1.0!!
>It will also work for extended units.

I first tried this for Amiga Empire on my A1000. The light on my modem did
NOT go off. I had to go directly to the hardware and toggle the bit - that
DID work. The problem went away when I got an A2000. On other machines, the
open/close combo did work. I don't at all understand how this was happening,
but it was quite repeatable. Also, a friend's A1000 has the same problem.

-- 
Chris Gray		Myrias Research, Edmonton	+1 403 428 1616
	{uunet!mnetor,ubc-vision,watmath,vax135}!alberta!myrias!cg