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

[Rodrigo D. <cu...@uo...>]

Johann Deneux wrote:

>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=20
>>the event API, such as binding physical units, how about using a=20
>>"/dev/usb/hidsomething" device which could control this?? I guess this=20
>>is more generic than creating it on the "jsx" device because it applies=
=20
>>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.=20
>
>>>>I don't know how to interpret some of the hex=20
>>>>data...I've realized some things, for example a phase that starts wit=
h=20
>>>>01 is to report buttons and axes, "02 32 00" is when you hold the=20
>>>>stick(there's a little sensor), "02 36 00" is when you release it, an=
d=20
>>>>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 us=
e
>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.
>
        Okay, today I looked deeper into the specs, and I found out it's=20
*partially* compliant...almost everything works according to the PID=20
specs, with a few exceptions..02(set envelope) has 7 bytes after it=20
instead of 6...06(Set ramp) has 3 bytes after it instead of 4...is this=20
the I-Force protocol?? I'm attaching some commented dumps to this message=
...

>>>Can you send me the dumps you have? That could really help me understa=
nd
>>>some problems I'm having. I started from the other direction, from the=
=20
>>>spec down, instead of from the wires up.
>>>
>>        I have looked at the specs too, but at first sight they didn't=20
>>help much, mostly because I had never looked at USB in a low level...bu=
t=20
>>I'll look at them better tonight...does this joystick follow those spec=
s=20
>>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=20
>>mailing list)...do have Immersion Studio?? If not you should get it,=20
>>
>
>Well, if you compress them, they should not be that big, should they ? A=
t
>least, please also send a copy to me.
>
        I'm sending a bzip2-ed copy here...if you want more dumps please=20
let me know(I didn't save most of my tests, I just looked at them on the=20
screen and guessed the meaning of bytes by changing parameters in=20
Immersion Studio...

Rodrigo

--=20
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