Path: utzoo!utgpu!news-server.csri.toronto.edu!rpi!usc!ucsd!hub.ucsb.edu!ucsbuxa!6600joef
From: 6600joef@ucsbuxa.ucsb.edu (Joe Foster)
Newsgroups: comp.unix.xenix.sco
Subject: UUCP and RTS/CTS handshaking
Keywords: uucp hardware flow control modem
Message-ID: <11680@hub.ucsb.edu>
Date: 30 May 91 00:12:34 GMT
Sender: news@hub.ucsb.edu
Distribution: comp
Lines: 27



	Help! I'm trying to get uucp, cu, etc. to talk to my high-speed
modem using hardware (RTS/CTS) flow control instead of using XON/XOFF.
Right now, I have my Dialers file set up to talk to this modem, and UUCP
works most of the time when I'm receiving files, but I sometimes encounter
problems when I'm transmitting. I think this is because I'm overflowing the
modem's internal buffers. "uutry -r -x9 wherever" isn't terribly specific
in this matter. My modem is probably signaling furiously using RTS/CTS, but
since the tty port is configured for XON/XOFF and not RTS/CTS (I checked this
with "stty -a /dev/tty2A" during the transfers), the serial driver never knows.
Is there a way to specify stty flags and other things from within the Dialers
file, or do I get to muck with one of the dialICKY-NASTY-UGH.c files? <:-(

	BTW, there's no problem with the port <-> modem connection using
RTS/CTS at 38400 baud from within a DOS communications program in VP/ix. It's
only from within uucico that I'm encountering troubles (besides not being able
to use uucp while VP/ix is running without "vpixcmd serial release"). 

						Joe Foster
						6600joef@ucsbuxa.ucsb.edu

P.S. The modem is a ViVa model 9642e 9600 baud V.42bis, external, and is
connected to a Pioneer Vantage 486/25 through a serial card using NS16450
UART's. uucico is talking to the modem through the tty2A modem-control port.
My XENIX version is 386GT 2.3.3, with SLS's xnx129b (updated UUCP binaries)
and xnx155b (lots o' screwy changes) installed.