Path: utzoo!censor!becker!bdb
From: bdb@becker.UUCP (Bruce Becker)
Newsgroups: unix-pc.general
Subject: Re: Unix PC uugetty, Sun 3/50 or 4/110 getty
Keywords: uugetty, uucp, cu, bidirectional, ALM-II
Message-ID: <194@becker.UUCP>
Date: 3 Jan 89 06:29:23 GMT
References: <779@rush.cts.com> <295@arnold.UUCP>
Reply-To: bdb@becker.UUCP (Bruce Becker)
Organization: G. T. S., Toronto, Ontario
Lines: 60

In article <295@arnold.UUCP> dave@arnold.UUCP (Dave Arnold) writes:
>In article <779@rush.cts.com>, bob@rush.cts.com (Bob Ames) writes:
>> 
>> We've got uugetty on the AT&T (3.51, hardware flow control enabled,
>> new combo PROM, HDB/BNU).
>   ^^^^ What is a new combo PROM?  My Combo card causes my system
>to hang when I use tty001 or tty002, do I need a hardware patch?
>
>I guess now is a good time for this question.
>
>When HDB places a ACU call, why the *&^^% doesn't it open the port
>with O_NDELAY?  I have to tell my modem to keep carrier high, which
>is certainly not correct, and screws up detection of remote hangups.
>
>Or am I missing something? 
>-- 
>Dave Arnold
>...!uunet!ccicpg!arnold!dave
>Volt Delta Resources     Phone: (714) 921-7635

	You're missing something. The documentation doesn't
	contain all the information. Later releases of the 
	system contain the following comments in the
	Dialers file:

#   Hayes Smartmodem -- modem should be set with the configuration
#   switches as follows:
#
#       S1 - UP		S2 - UP		S3 - DOWN	S4 - UP
#       S5 - UP		S6 - DOWN	S7 - ?		S8 - DOWN
#
#hayes	=,-,	"" \dAT\r\c OK\r ATDT\p\c \T\r\c CONNECT
#   Hayes Smartmodem -- new BNU modem control capabilities
#   If you do not want to strap CD on, use these switch settings:
#
#       S1 - UP		S2 - UP		S3 - DOWN	S4 - UP
#       S5 - UP		S6 - UP		S7 - ?		S8 - DOWN
#
#  and this dialer entry (comment out the earlier one):
#
hayes	=,-,	"" \M\pAT\r\p\c "" ATDT\p\c "" \T\r\m\c CONNECT 
#
#  Furthermore, you must add a ",M" subfield to the line field (field
#  2) of the associated Devices file entries, as shown here:
#
#	ACU culd0,M - 1200 hayes \T
#
#  The ",M" subfield will cause the device to be opened with O_NDELAY set
#  (so the open doesn't hang waiting for carrier).  After the open,
#  O_NDELAY is cleared.  Then in the dialer script, "\M" sets CLOCAL and
#  "\m" clears it.   Typically, CLOCAL is set for the duration of the
#  dialer chat, then cleared (so uucico and cu will detect dropped lines)
#  once you're connected to the remote system.

Cheers,
-- 
   _  _/\	Bruce Becker	Toronto, Ont.
   \`o O|	Internet: bdb@becker.UUCP, bruce@gpu.utcs.toronto.edu
    \(")/	BitNet:   BECKER@HUMBER.BITNET
---mm-U-mm---	"The OSF is suffering from Penix envy" - Rocky Raccoon