So, it sounds like I might need to write a driver for the device if the
data is not coming through HID properly. Does anyone have advice about
the easiest way to do this, given that everything else works properly as
is, and that the only thing I want to change is how the displacement
packets get converted into HID events? Is there a way for me to override
just that small bit of functionality?
Thanks!
-jg
On Thu, 15 Jan 2004 email@hidden wrote:
> I have talked to them, and they have been very helpful; they have
> information on how to communicate directly with the powermate if I were to
> write my own driver, and they informed me that they have used the knob
> successfully with HID on windows, which is promising. However, they have
> not tried to access it using HID on the mac, so they couldn't provide any
> information about what I describe here. Of course, I'd like to use HID if
> it all possible rather than write my own driver...
>
> Thanks!
> -jesse
>
>
> On Thu, 15 Jan 2004, David Niemeijer wrote:
>
> > At 1:30 -0500 15/1/04, email@hidden wrote:
> > >I had no trouble getting data from "original" the powermate usb knob using
> > >HID, but I can't seem to figure out how to use the newer versions (there
> > >has been a firmware change). I can get the press data fine, but the
> > >rotate data, which comes as relative offsets just like from a mouse, seems
> > >to behave strangely. (I tested the knob with the provided driver and it
> > >works fine there, so the knob itself is ok). I'm also told that it
> > >behaves correctly through HID on windows machines.
> >
> > Have you tried contacting Griffin directly? I believe they have some
> > special developer docs.
> >
> > david.
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