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SubjectRE: WinModem Driver for Linux?
Date
To be frank modem DSP is the relatively easy part. The more difficult part
is the implementation and testing of all those standards; speed
negotiation, error checking, recovery, compression etc. Getting the DSP to
equalize the channel especially if you don't have much a processing power
concern is not that difficult. It is not , IMNSHO, usefull at all to have a
modem which is not a "modem". Very few people would have any use for
something which doesn't talk to the Internet, IOW, an ISP.

-----Original Message-----
From: owner-linux-kernel@vger.rutgers.edu
[mailto:owner-linux-kernel@vger.rutgers.edu]On Behalf Of Pavel Machek
Sent: Tuesday, June 08, 1999 6:11 AM
To: Brian Gerst
Cc: Modemch; linux-kernel@vger.rutgers.edu
Subject: Re: WinModem Driver for Linux?


Hi!

> > Isn't there a driver for a "SoundBlaster" modem in the recent kernels?
> > IIRC, it can do 9600 bps, so changing that driver to use a different
DSP
> > might be a better way to do this.
>
> AFAIK this is only for amateur radio network protocols. Not only do
> winmodem drivers have to do the DSP work, but they also have to do the
> error correction and data compression algorithms as well, which if I
> remember right, are covered by numerous patents.

Gzzz. DSP is the hard part. You could use gzip for compression if you
really wanted to, and error correction is usually done with crc +
retransmits, so that's not problem, either.

Well, you could end up with driver that would only be able to connect
linux-to-linux, but I guess that it is WAY better than no driver at
all.

Pavel
--
The best software in life is free (not shareware)! Pavel
GCM d? s-: !g p?:+ au- a--@ w+ v- C++@ UL+++ L++ N++ E++ W--- M- Y- R+

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