Subject: Re: [linux-audio-dev] read it and drool
From: Steve Harris (S.W.Harris_AT_ecs.soton.ac.uk)
Date: Tue Dec 05 2000 - 12:10:36 EET
On Mon, Dec 04, 2000 at 08:22:29AM +0100, David Olofson wrote:
> Been thinking about it, but haven't done it yet. Would be interesting
> to see if it could really work. :-)
>
> There are optical high resolution rotary encoders that would be
> suitable for this. One of those, a counter chip and a few gates on a
> bidirectional parallel port would probably be the easiest prototype
> hack. (The counter wrapping at 256 is ok, as you only deal with
> deltas. Just read frequently enough to get at least two readings per
> full counter cycle.)
Or you could use a trackball, set to use Xinput, NonCore. Which is easier
for thoses of us that aren't good with soldering irons ;)
A trackball is not quite hte right interface, but its probably close
enough.
- Steve
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