Dave Huang wrote:
> 
> On an ADB-related, but non-hwdirect-related note, yesterday, I stopped by
> the (relatively) new Fry's Electronics in Arlington, TX... wow, that place
> is like the hugest electronics store I've seen :) Although it didn't seem
> as cool as the ones I've heard about in California... no weird old
> electronics junk, and I didn't see any Jolt Cola either :) Anyways, I
> couldn't resist getting a Mouse Systems A3 trackball... X is awful with
> just one button :) It's working just great, but this seems a bit strange
> to me: 
> 
> adb: extended keyboard at 15
> adb: Mouse Systems A3 mouse, default parameters at 3
> adb: standard keyboard at 2
> 
> What's this standard keyboard at 2 stuff about? I only have one keyboard
> hooked up, an extended keyboard II. The same devices show up with a
> MRG_ADB kernel. 

This is a result of the fact that the A3 mouse fakes a keyboard in
addition to the mouse b/c by default it sends arrow keys for the 2nd and
3rd buttons.  I didn't realize that there may be a way to recognize it for
what it is and ignore it when I added the support the for A3 mouse.  If I
ever manage to get my A3 mouse fixed, I'll take care of this.
 
> And is the -a switch the only way to make the mouse pointer faster in X?
> It takes about 5 half-rotations of the trackball to move the pointer from
> the left edge to the right edge (1024x768 screen). The A3 box claims 680
> dpr resolution (dots per rotation?), so it should be able to move faster :)

If you want, you can compile your own kernel and make it go faster :-)  I
think that changing the device handler id to 6 instead of 3 will double
the current resolution.  You might want to grab a copy of ADB Parser and
play with it on the Mac side, first, tho.  When I was figuring out how the
mouse worked, I think that I found the pattern in the device handlers it
recognized.  Something like even-numbered device handlers were 2x normal
resolution (I wouldn't use 4, tho, since that's the extended mouse
address).

I hope this explains it some.

Later.

-- 
Colin Wood                                 cwood@ichips.intel.com
Component Design Engineer - MD6                 Intel Corporation
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I speak only on my own behalf, not for my employer.