Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!tut.cis.ohio-state.edu!rutgers!apple!well!jimbo
From: jimbo@well.UUCP (Jim Bolton)
Newsgroups: comp.sys.amiga.tech
Subject: DTR and serial.device
Keywords: serial, RS232, modem
Message-ID: <10511@well.UUCP>
Date: 28 Jan 89 09:57:09 GMT
Distribution: usa
Lines: 25



I would like a bit of help concerning the Amiga's RS-232 port and serial
device.  I hope someone can help answer my question.

I've almost completed a bbs/conference application and early today was
looking at the way I handle DTR.  Currently to drop DTR I close the serial
device, wait 1 second, and then reopen the serial device.  This procedure
covers almost all modems, but does seem a bit awkward from what I've done on
other systems.

What I would like to do is inhibit DTR for n/10 seconds and if this doesn't
force hang-up then an online escape command could be issued to force the
modem to command mode where an explicit hang-up command could be issued.
This seems like a much better way to handle it.

So, I would like to know if it is possible to inhibit DTR on the Amiga's
RS-232 serial port and if so could you point me in the right direction.

Thanks in advance for any help!

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