Vojtech Pavlik wrote:
> On Sat, Jun 01, 2002 at 01:02:23PM +0300, Johann Deneux wrote:
> 
>>Vojtech Pavlik wrote:
>>
>>>On Mon, May 27, 2002 at 01:17:58PM +0200, Johann Deneux wrote:
>>>
>>>
>>>>Johannes Erdfelt wrote:
>>>>
>>>>
>>>>
>>>>>I can only see 2 reasons for putting it into the HCD: OHCI and EHCI
>>>>>handle it implicitily and for speed.
>>>>>
>>>>>There is a strong desire to keep bulk fast, but I can't come up with a
>>>>>reason for control to be faster.
>>>>>
>>>>>
>>>>>
>>>>It depends on what you mean by fast. I am trying to write a driver for a 
>>>>device that needs control messages to be sent often (every 0.1s or 0.01s 
>>>>or so).
>>>>
>>>>
>>>Doesn't the device have an output endpoint for that?
>>>
>>>
>>The device is an hid device using Logitech's home-made protocol for 
>>force-feedback. It indeed has an output endpoint, but AFAIK it uses 
>>control messages to handle force-feedback.
>>
> 
> I think using the interrupt out endpoint will work equally well. Anyway,

Good guess ! I've just tried it, and it works.

> I think force feedback is the only reason to add an out endpoint to a
> mouse.
> 
> 

-- 
Johann Deneux



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