Re: Need Fast Serial Driver

[chuckie@sage.cc.purdue.edu (Gunn, C Stephen)]

In article <1993Feb2.100309.58@ta.vkr.tnv.com> Fred LaForest writes:

>I am looking for a driver which would, upon finding "n" bytes of
>data in the input interrupt buffer, return "n" bytes to the application.

The current System Software Drivers (The ones that get generated at boot
if you don't have custom ones installed) will return either 1 Character
or Multiple Character Input.. All you have to do is set the requestcount
field of your parms to GS/OS for a DReadGS call.

>
>Internally, the driver would not obtain one character at a time using the
>ROM routines to satisfy the caller, but, actually move "n" characters in
>one operation.

This is toggled by wait and nowait modem in GS/OS... see the GS/OS Reference
for more information on changing it for a device.


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