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Date:      Tue, 15 Jul 2003 11:18:11 -0400
From:      "fbsd_user" <fbsd_user@a1poweruser.com>
To:        "Gary W. Swearingen" <underway@comcast.net>
Cc:        freebsd-questions@freebsd.org
Subject:   RE: Modem replies to commands mostly not seen.
Message-ID:  <MIEPLLIBMLEEABPDBIEGGELEEBAA.fbsd_user@a1poweruser.com>
In-Reply-To: <u5vfu57yn2.fu5@mail.comcast.net>

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I have a USR sportster 14.4 external serial modem which works fine
under FBSD 4.8.

Dip switches 3-7-8 are set to 'on' which is down, all others are set
to off which is up.
3 = display result codes
7 = load factory defaults
8 = smart mode

Modem has to be powered on before you boot FBSD box modem is cabled
to.  Modem is found and listed in /var/run/dmesg.boot file. During
PC post process a summary PC hardware config screen shows the irq's
assigned to hardware. Check this summary screen to verify the irq
assigned to modem is not shared with other hardware. If it is, go
into pc bios to change, be sure bios plug-n-play option is disabled,
and serial ports are enabled.  I use "TIP" command to issue Hayes AT
commands. If you get an OK response to AT command, then you are
talking to modem just fine and it's working.  If you still have
problems, post dmesg.boot file and use the script command to log
your TIP command test output to a file and post that also. Most PC's
have 2 serial ports, try cabling modem to different port and test
again. Can you run mswindows on the pc to verify serial port and
modem work.


-----Original Message-----
From: owner-freebsd-questions@freebsd.org
[mailto:owner-freebsd-questions@freebsd.org]On Behalf Of Gary W.
Swearingen
Sent: Monday, July 14, 2003 2:27 PM
To: fbsd_user@a1poweruser.com
Cc: freebsd-questions@freebsd.org
Subject: Re: Modem replies to commands mostly not seen.

"fbsd_user" <fbsd_user@a1poweruser.com> writes:

> Sounds like you have echo turned off in the modems internal prom
> setting. Use Hayes AT command to turn on echo function of modem
> hardware.   Did these modems you tested work ok in FBSD 4.8?

I tried the external Sportster under 4.8 but after it wouldn't work,
I upgraded to 5.1 to lower the chances of having to go through this
again when I did switch.

I have modem manuals and played with dip switches and lots of AT
commands including "ATE1" ("keyboard commmands"), "ATF0" (I think
that's only for data that the modem sends out the phone line),
"ATX4"
("result codes"), re-init commands ATZ, ATZ1-ATZ5, AT&F1, and many
others.  I've been through this several times before (on Linux) and
think I know what I'm doing (except I've never understood the
interactions of "stty" and serial-port-using programs like terminal
emulators.  It's strange that "ATI" gives it's results if I press
keys, but "AT" or "$" don't.

I've found a place to do my FAXing, so the pressure's off on getting
this fixed.

BTW, my other question was about the dmesg files, but I should have
thought of the HISTORY_SIZE thing for at least the console.
(/var/run/dmesg.boot has 943 lines of nothing I care about.)
Someone suggested "kern.consmsgbuf_size=16384".

Thanks.
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