Re: [PATCH] [musb_hdrc]: fix bug - EOVERFLOW failure when do usb gadget zero test t14

On Mon, Jun 30, 2008 at 10:52 PM, Felipe Balbi <[email protected]> wrote:
> On Mon, Jun 30, 2008 at 10:34:54PM +0800, ext Bryan Wu wrote:
>> Yes, without the flush operation. It should always fail.
>> --
>> root@adam:/home/test# sudo ./src/testusb -D /proc/bus/usb/005/007 -t14
>> -c 15000 -s 256 -v 1
>> unknown speed   /proc/bus/usb/005/007
>> /proc/bus/usb/005/007 test 14 --> 75 (Value too large for defined data type)
>> --
>
> Cool, as soon as I get a analyzer, i'll also look at it.
>
>> I have a question about the driver:
>> When does the driver ask MUSB to send out the last IN packet of the
>> STATS tranfer?
>> I think it is automatically controlled by hardware, right? When we
>> write DATAEND to CSR0,
>> it waits for host IN token and reply a ZERO length packet to host, right?
>
> As soon as I remember, yeah. Done by hw.
>
> There was a known issue when the CSR was 0x77ff (if I'm not wrong, will
> look my mails and search for the right flakey csr), but we tested on
> omap3 and it didn't seem to be affected.
>

Oh, is there any URL for this known issue?
So happy to know we are in the same MAD USB (musb), -:))))

-Bryan
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