Re: PCI Modem Support

Anthony Barbachan (barbacha@Hinako.AMBusiness.com)
Sun, 25 Oct 1998 01:52:30 -0500


-----Original Message-----
From: Khimenko Victor <khim@sch57.msk.ru>
To: vladimid@red.seas.upenn.edu <vladimid@red.seas.upenn.edu>; mj@ucw.cz
<mj@ucw.cz>
Cc: barbacha@Hinako.AMBusiness.com <barbacha@Hinako.AMBusiness.com>;
linux-kernel@vger.rutgers.edu <linux-kernel@vger.rutgers.edu>
Date: Saturday, October 24, 1998 11:46 AM
Subject: Re: PCI Modem Support

>In <Pine.GSO.4.02A.9810231326030.15522-100000@red.seas.upenn.edu> Vladimir
Dergachev (vladimid@red.seas.upenn.edu) wrote:
>
>
>> On Wed, 21 Oct 1998, Martin Mares wrote:
>
>>> Hi,
>>>
>>> > I noticed at the last computer show in my local area that PCI
modem are
>>> > becoming very numerous. They actually outnumbered the ISA modems at
the
>>> > show. Is anybody working on writing a Linux driver for these modems?
If
>>> > not I may want to give it a shot. Given PCI's solving of the IRQ
limitation
>>> > (as well as probably the 4 COM port limit) on the PC I could
definately put
>>> > these PCI modems to good use, besides I will need it if Intel is
successful
>>> > in killing ISA (and the COM ports) this year. On another note
somebody told
>>> > me that all PCI modems were WinModems. Does anybody know if this is
true?
>>> > I doubt it, but the possibility is there.
>>> >
>>> > - A. Barbachan
>>> >
>
>> Writing a driver for WinModems can be an interesting exercise in itself.
>
>Especially since such thing can not be done reliable in "standard Linux".
>Only in RT-Linux :-((
>

This doesn't make sense. Win9x is not real time and yet it supports
WinModems. If Win9x supports them then Linux should be able to as well.

>> This would require (probably) some mathematics and some knowledge of how
>> to do dsp processing.
>
>Plus you'll need to do a lot of reverse ingeneering :-))
>

Not if some company decides to finally give us the needed info.

>> The question is whether the corresponding literature is available.
>
>Literature about dsp processing and mathematics are widely available. But
not
>specs for WinModems: it's trade secrets...
>
>> I don't have any of these cards but would be glad to help once the
>> development begins. I think getting a used one should not be too
>> expensive.
>
>I'm doubt. Writing driver itself should not be big problem but all this
reverse
>ingeneering stuff :-(( I'm doubt. Plus it's not legal in some contries...
>
>P.S. Linux was done with VERY right timing. Now OSS (mainly Linux for now)
>world is big (I hope) enough to keep standard modems and printers alive.
Not
>mainstream but alive.
>
>
>

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