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From: meindert@inducom.UUCP (Meindert Kuipers)
Newsgroups: comp.os.os9
Subject: Re: Device driver for fast character peripheral
Message-ID: <2022@inducom.UUCP>
Date: 28 Nov 90 18:55:32 GMT
References: <12774@ganymede.inmos.co.uk>
Organization: Inducom Systems BV, Oss Netherlands
Lines: 33

From article <12774@ganymede.inmos.co.uk>, by davidb@inmos.co.uk (David Boreham):
> 
> I'm working on interfacing a peripheral which does 1Mbyte/s
> to an OS/9-68000 system. If you use an SCF device driver,
> you can not sustain anything like that data rate because
> you have to go through the operating system for each 
> character.
.
.
> Is there another file manager available which would be better ?
> 

Yes, we have done a little thing like that. It is basically an
empty file manager, which passes read and write requests directly
to the driver. It is not a product however, because it has to be
modified depending the specs of the hardware and user software.
It is not always useful to do a filemanager, other solutions are
available like getstat/setstat in an SCF-driver or a traphandler
(possibly in system state).
Give us a ring to check out the possibilities.

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  Meindert Kuipers, Inducom Systems B.V.
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