>>>>> "Pete" == Pete Zaitcev <[EMAIL PROTECTED]> writes:
 Pete> On Sun, 12 Mar 2006 14:49:56 +0100, Jan Rychter <[EMAIL PROTECTED]>
 Pete> wrote:
 >> Thanks for the hint. I've attached a trace -- it didn't take long to
 >> reproduce the problem. [...]

 Pete> All we see that the printer does not complete a transfer.

 Pete> At this point I think we can exonerate usblp.c. Only two
 Pete> possibilities remain that I can see:
 Pete> - foo2zjs should insert padding to let printer breathe, or worse,
 Pete> it has to be an actual delay in front of the chunk,
 Pete> - Something is not right with the Host Controller or its driver.

 Pete> Unfortunately, I do not see any easy way to split the two.

 Pete> Have you tried to put a USB 1.1 hub in between the printer and
 Pete> the host, or trying "rmmod ehci_hcd"?

I've tried the latter -- these problems occur both with and without
ehci_hcd.

Should I try with a USB 1.1 hub?

--J.



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