Path: utzoo!utgpu!jarvis.csri.toronto.edu!mailrus!ulowell!cbmvax!bryce
From: bryce@cbmvax.UUCP (Bryce Nesbitt)
Newsgroups: comp.sys.amiga.tech
Subject: Re: DTR and serial.device
Keywords: serial, RS232, modem
Message-ID: <5896@cbmvax.UUCP>
Date: 4 Feb 89 00:56:01 GMT
References: <10511@well.UUCP> <15000@oberon.USC.EDU> <443@madnix.UUCP> <15068@oberon.USC.EDU> <460@madnix.UUCP>
Reply-To: bryce@cbmvax.UUCP (Bryce Nesbitt)
Distribution: usa
Organization: Commodore Technology, West Chester, PA
Lines: 21

In article <460@madnix.UUCP> perry@madnix.UUCP (Perry Kivolowitz) writes:
>...but maybe Bryce isn't aware of the existence
>of some weird pieces of equipment  out there which uses DTR as a control
>line...

I certainly am aware.  But if you want a single method you can use NOW
(with the serial.device on V1.2 and V1.3 Workbench disks) Close/Re-Open
is what you want to use.  The person asking the question wanted to hang
up a modem.

In the future, there will be an opposite to CMD_QUERY available, but only on
the newer generation.  Programs will be able to define any of the control
lines that the hardware device supports (and get a mask of just what lines
those are). 

-- 
|\_/|  . ACK!, NAK!, EOT!, SOH!
{O o} .     Bryce Nesbitt
 (")        BIX: bnesbitt
  U	    USENET: cbmvax!bryce@uunet.uu.NET -or- rutgers!cbmvax!bryce
Disclaimer: I'm not an official, and this is not an official opinion.