Re: Question on I/O devices

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Scott McMillan (mcmillan++at++cs.nps.navy.mil)
Mon, 20 Nov 1995 12:48:55 -0800 (PST)

Lok Liu writes:
> I am working on a project that requires me to hook up a motion sensor to
> Performer which acts very much like a mouse. From my understanding of
> Performer, it only takes input from keyboard or a mouse. However, there
> is not much document on this area as well. Can anyone suggest a way on
> how I can write the driver for the motion sensor that Performer can
> interpret?

I have been working with the Polhemus Fastrak in my Performer
application. I set up the Fastrak so that it outputs a continuous
stream of binary data and I sproc a lightweight process from the APP
to process this stream and place that data in buffers that can be
accessed by the APP. If this sounds like something you want to do, it
can be no different from writing a device driver for a non-Performer
application. It may or may not be a different story if you want to
handle the input during the DRAW process. Anybody?

scott

-- 
Scott McMillan/mcmillan++at++cs.nps.navy.mil/(408)656-3316/FAX (408)656-2814
Dept. of Computer Science/Naval Postgraduate School/Monterey, CA  93943 
         URL: http://cs.nps.navy.mil/people/faculty/mcmillan/

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