Re: [Patch] Increase USBFS Bulk Transfer size

Alan Stern
2011-10-13T20:07:53Z

On Thu, 13 Oct 2011, Markus Rechberger wrote:

> fair enough I have 2 devices which don't work properly with bulk.
> Device A works by adjusting a hardware register
> Device B is documented in this thread.
>
> Device A causes corruptions when the hardwareregister is set to a
> buffersize > 16k.
> There is certainly something on the physical usb layer which is unknown to the
> (software) USB experts here.
> The logfiles in the previous email shows up enough and is clear enough.

When you ran the test using the 12288/11776 sizes, did you change the
hardware register buffersize value? Or did you leave it set to the
same 24064 as in the other test?

Alan Stern