On Fri, 3 Jun 2005, Stuart MacDonald wrote:
> From: Alan Stern [mailto:[EMAIL PROTECTED]
> > However, there is one possibility... Older Intel UHCI
> > hardware (the PIIX3
> > Neptune chipset) has an erratum that causes the controller
> > sometimes to
> > update a completed TD's status but not
On 03/06/2005 18:38, Alan Stern wrote:
On Fri, 3 Jun 2005, Stuart MacDonald wrote:
I did see that uhci_interrupt() stops entering ie interrupts have
stopped being generated, but not due to lockup since the system was
fine, and I could reload my driver and have it communicate again.
That's the
From: Alan Stern [mailto:[EMAIL PROTECTED]
> However, there is one possibility... Older Intel UHCI
> hardware (the PIIX3
> Neptune chipset) has an erratum that causes the controller
> sometimes to
> update a completed TD's status but not update the QH's
> element pointer.
> As a result the c
On Fri, 3 Jun 2005, Stuart MacDonald wrote:
> Why doesn't queueing work?
Sorry, I don't know. :-( My knowledge of the 2.4 uhci driver is limited
to the extent that it resembles the 2.6 uhci-hcd driver. I've never
seriously considered trying to maintain or improve it.
> Rhetorical mostly, :-
From: Alan Stern [mailto:[EMAIL PROTECTED]
> If there's anything in particular you need to know or are
> interested in, I
> might be able to help. Bear in mind that the 2.4 drivers are
> much more
> complicated and much less reliable than the 2.6 driver.
Thanks, I appreciate it. So...
Why d
On Fri, 3 Jun 2005, Stuart MacDonald wrote:
> Ah! The flashbacks! I did the same thing ages ago, and then again just
> now. My knowledge of uhci internals is greater, but still not complete
> or unconfused.
If there's anything in particular you need to know or are interested in, I
might be able
From: On Behalf Of Ian Abbott
> The URB queueing stuff in ftdi_sio was implemented some time
> before the
> the problems with the uhci driver were known. I guessed I
> lived in hope
> that it would get fixed one day. (I even tried debugging it with
> printk's, but got horribly lost. I would
