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000272_news@watsun.cc.columbia.edu _Wed Feb 24 14:29:45 1999.msg
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From: fdc@watsun.cc.columbia.edu (Frank da Cruz)
Subject: Re: Setserial High Speed Help
Date: 24 Feb 1999 19:07:21 GMT
Organization: Columbia University
Message-ID: <7b1il9$m9t$1@newsmaster.cc.columbia.edu>
To: kermit.misc@mailrelay2.cc.columbia.edu
In article <7b191j$ss0$1@vixen.cso.uiuc.edu>,
C Lance Moxley <clm@uiuc.edu> wrote:
: I need a hand with setserial. I have installed a Lavaport PCI serial
: card (UART 16650) on a RedHat 5.2 system with the default RedHat kernel.
: I can talk to both new serial ports just fine, but I can't talk to them
: with any speed over 115200bps. I installed this card to use with an
: external ISDN T/A and I want to get the maximum throughput from the
: serial port. What I don't understand is the "baud_base" and the "divisor"
: options with setserial. How do I set these to allow 230400bps? I'd
: like to use Kermit to talk to the T/A at that rate.
:
I don't know about setserial or your serial card, but C-Kermit 7.0
(currently in Beta test) supports high serial speeds in Linux in the normal
POSIX way, i.e. without any of the hacks found in previous releases.
C-Kermit's list of supported speeds on any particular platform comes from
its scanning of the appropriate header files at compile time, and can be
seen by typing:
set speed ?
at the C-Kermit> prompt. In Red Hat 5.2, where speeds are defined in
/usr/include/termbits.h, serial speeds up to 460800 bps are supported.
C-Kermit 7.0 can be found at:
http://www.columbia.edu/kermit/ck70.html
By the way, if anybody would care to try building it on older Linux
systems and/or on non-Intel platforms, please let me know.
Thanks.
- Frank