Re: at91_udc driver does not forward data received from host if size is less than ep buffer and size %64 == 0

On Thu, 2007-02-22 at 11:44, Alan Stern wrote:

> It sounds like you have a protocol problem, not a driver problem.  If you 
> submitted a request for 1024 bytes on a bulk endpoint and 960 bytes have 
> been received so far, what makes you think the transfer is finished?
> 
> Alan Stern
> 
You are probably correct.  I don't send the amount of data to be
transferred over, the host transfer x amount of data at any time, where
x can be any number,  I just preload requests for 1024 bytes as the
gadget does not know in advance how much data will be sent.  This method
works flawlessly except in the case I described.  Without entirely
changing my protocol to be a fixed length every time (which I don't want
to do) it sounds like the fix I implemented is the one I should stick
with.
I thought it was worth asking, but I see your point, I am probably not
using this in the conventional manner.

Regards,

Jeff Warren


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