On Thu, 16 Mar 2006, Niels Sterrenburg wrote:
> Hi Alan,
>
> Thanks for the quick reaction.
>
> > However, I don't understand the last line of your log. After the second
> > port reset, why isn't there another "port 1 high speed" line? Why did the
> > status change to 000000? It should be 001005, like it was after the first
> > reset.
> I have aranged myself a USB2 protocol analyzer, so I'll check whats
> happening on the bus.
>
> > If possible you should move up to 2.6.11, or even better, 2.6.15.
> I did fuzzle a bit in the ehci_reset as on some boards it complained
> that ehci_reset failed...
> I will port 2.6.15 later on but that's not a quick action for now.
>
> I'll keep you posted when I discover what it is.
At least apply this patch. It might turn out to be important.
Alan Stern
--- usb-2.6.10/drivers/usb/core/hub.c 2005-01-03 09:39:35.000000000 -0500
+++ usb-2.6.10b/drivers/usb/core/hub.c 2006-03-16 11:00:05.000000000 -0500
@@ -1375,6 +1375,9 @@ static int hub_port_reset(struct usb_dev
/* return on disconnect or reset */
switch (status) {
case 0:
+ /* TRSTRCY = 10 ms; plus some extra */
+ msleep(10 + 40);
+ /* FALL THROUGH */
case -ENOTCONN:
case -ENODEV:
clear_port_feature(hdev,
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