Re: Mapping of request Vs response in USB Asynchronous driver

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On Wed, Aug 5, 2009 at 2:25 PM, Ramya Desai<ramya.desai@xxxxxxxxx> wrote:
>> I understand "USB stack" you mean in the above line is USB Host Stack.
> Yes. Thats correct
>
>>  Does host stack have "intelligence/awareness" that the device can
>> reply in any order ?
>
> This is my question.

Yes, you need to make the host stack "aware" of the device behavior. I
doubt the present usbcore/drivers supports it. In my understanding the
modification should be in /drivers/usb/storage/* files

>> Is the transfer by the device on is bus proper ?
> The device can send the data in any order.

My question is : do you see the data from the device as expected in a
bus analyzer?

>
> -RD
>
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