Path: utzoo!utgpu!watserv1!watmath!att!rutgers!cs.utexas.edu!ut-emx!ibmchs!auschs!awdprime!doorstop.austin.ibm.com!tif
From: tif@doorstop.austin.ibm.com (Paul Chamberlain)
Newsgroups: comp.unix.questions
Subject: Re: modem problems
Message-ID: <2775@awdprime.UUCP>
Date: 16 Jul 90 19:25:16 GMT
References: <23885@adm.BRL.MIL>
Sender: news@awdprime.UUCP
Reply-To: tif@doorstop.austin.ibm.com (Paul Chamberlain)
Organization: IBM AWD, Austin, TX
Lines: 14

In article <23885@adm.BRL.MIL> TSARS@uga.cc.uga.edu ( mark porporino) writes:
>I see the message "Serial: ERROR: Garbage or loose cable on
>/dev/tty1A, port shut down" on my console when a call comes in to my external
>2400bps ZOOM modem.

I seem to recall something like this:

The driver received an interrupt but there was no character received.  I
believe that the reason for this is that some UARTS can/will generate an
interrupt on RI (Ring Indicator).  SCO considers this a no-no.  I'm not
real sure but it seems like one solution was to disconnect RI from the UART.

Paul Chamberlain | I do NOT represent IBM         tif@doorstop, sc30661@ausvm6
512/838-7008     | ...!cs.utexas.edu!ibmaus!auschs!doorstop.austin.ibm.com!tif