USB 2.0 errors

[Diane Rose]

Hi,

We have an application that sends random sized packets across a USB 2.0
bridge cable, which uses bulk pipes for transfer. We use an 8-byte header,
and then read/write a data packet up to 64K long. Here is our problem:
after running for a while (sometimes 3 hours, sometimes 10 hours or more) we
get one of the following errors:

c0000012 USBD_STATUS_BABBLE_DETECTED
c0000004 USBD_STATUS_STALL_PID
c0000011 USBD_STATUS_XACT_ERROR

We have reviewed our driver, and can't find any errors there. We have run
on various computers, with Windows XP, 2000, ME and 98. I would appreciate
some advice on whether these errors typically indicate a problem in hardware
or the USB driver stack or our own driver or what. And if it is something
out of our control (say, hardware), if there would be a way to work around
it, such as timing or packet sizes or something.

Thanks for your help,
Diane

[Robert Marquardt]

Another forum worth asking is the USB IF forum
http://www.usb.org/phpbb/viewforum.php?f=1
then you have reached almost all USB experts.

[Bryan S. Burgin [MSFT]]

Diane,

Before digging any further, try the USB rollup QFE for XP, KB 822603
(http://support.microsoft.com/default.aspx?scid=kb;[LN];822603). If you
need help getting this patch, send me mail directly with your name,
company, phone and e-mail and I'll send you the patch.

Bryan S. Burgin
bbu...@microsoft.com

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