Re: hello...and MS-FF2...

[Johann D. <jo...@Do...>]

On Sat, 19 Jan 2002, Rodrigo Damazio wrote:

> Bj|rn Augustsson wrote:
> 
> >Quoting Rodrigo Damazio <cu...@uo...>:
> [...]
>         Regarding the HID-specific stuff which isn't supported through 
> the event API, such as binding physical units, how about using a 
> "/dev/usb/hidsomething" device which could control this?? I guess this 
> is more generic than creating it on the "jsx" device because it applies 
> to many kinds of HIDs, not just joysticks...

The event API is not fixed, as far as I know. It would be better to use
this one. Indeed, we do not know for sure this is hid specific. 

> 
> >>I don't know how to interpret some of the hex 
> >>data...I've realized some things, for example a phase that starts with 
> >>01 is to report buttons and axes, "02 32 00" is when you hold the 
> >>stick(there's a little sensor), "02 36 00" is when you release it, and 
> >>so on...
> >>
> >

Funny, this really looks like the I-Force protocol. May I have a copy of
your dumps ? According to Immersion, Microsoft uses its own software and
drivers, which Immersion knows nothing about. But maybe they actually use
the iforce protocol. I don't know. On the other hand, I notice that the
pid spec does not differe much from the iforce one.

> >Can you send me the dumps you have? That could really help me understand
> >some problems I'm having. I started from the other direction, from the 
> >spec down, instead of from the wires up.
> >
>         I have looked at the specs too, but at first sight they didn't 
> help much, mostly because I had never looked at USB in a low level...but 
> I'll look at them better tonight...does this joystick follow those specs 
> then? Or do we really have to guess how it works?
>         I'll send you some dumps by e-mail(so as not to clutter up the 
> mailing list)...do have Immersion Studio?? If not you should get it, 

Well, if you compress them, they should not be that big, should they ? At
least, please also send a copy to me.

> because my dumps are all done while using it(I set it to use the SFF2 
> through DirectInput)...then you can know what was happening during each 
> dump...
> 

-- 
Johann Deneux