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From: andreas@knobel.knirsch.de (Andreas Klemm)
Newsgroups: comp.os.386bsd.questions
Subject: Re: FreeBSD, modem, v.42bis, flow control, help
Date: 4 Jun 1994 17:57:25 GMT
Organization: Andreas Klemm, 41469 Neuss, Germany
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Dan Hickman (hickman@prism.tamu.edu) wrote:
: I am running Freebsd 1.1 GAMMA and have a couple of dialin modems on ports
: ttyd0 and ttyd1. Everything works cool except that I can't get it to use
: a line speed higher than 9600 so that I can fully use the modems bandwidth
: and compression. The problem seems to be with the line speed between
: the computer and modem (I am using external USR14.4 Sportster modems). If I
: set the speed to 9600, I can dialin, but as soon as I set it to 19200 or higher
: and try, it craps out. I am setting the line speed to 19200 by setting the
: ports 'ttys' setting to std.19200. Is this correct?
Is that possibly a RTFM question ? :) A few questions/suggestions:
Do you use the sio serial driver and did you set the kernel option COM_BIDIR ?
options "COM_BIDIR" #Bidirectional support in sys/isa/sio.c
device sio0 at isa? port "IO_COM1" tty irq 4 vector siointr
device sio1 at isa? port "IO_COM2" tty irq 3 vector siointr
Do you have the following special files ?
For logins:
0 crw------- 1 root wheel 28, 0 Nov 8 06:28 tty00
0 crw------- 1 root wheel 28, 1 Nov 8 10:09 tty01
For dialing out:
0 crw-rw-r-- 1 uucp dialer 28, 128 Nov 8 03:45 cua00
0 crw-rw-r-- 1 uucp dialer 28, 129 Nov 7 18:34 cua01
Did you setup the port using the comcontrol utility ? A good place for that
is /etc/rc.local:
# initialize serial ports
/sbin/comcontrol /dev/tty00 bidir
/sbin/comcontrol /dev/tty01 bidir
stty crtscts < /dev/cua01 <= enable hardware handshaking
What output shows comcontrol /dev/tty01 ?
root# comcontrol /dev/tty01
bidir dtrwait 200
Hope these suggestions help. Please note that I found this in the faq.
I personally use my modem only for dialing out. So the above is untestet
(but doesn't crash the/my system).
With kind regards
Andreas ///
--
Andreas Klemm /\/\____ Wiechers & Partner Datentechnik GmbH
andreas@knobel.knirsch.de ___/\/\/ andreas@wupmon.wup.de (Unix Support)