On Monday, 18 September 2006 17:07, Alan Stern wrote:
> On Mon, 18 Sep 2006, Rafael J. Wysocki wrote:
>
> > > Actually, the problem is ohci_hcd doesn't seem to recognize devices
> > > plugged
> > > into the USB ports.
> > >
> > > For example, if I unplug and replug a mouse (that worked before
> > > unplugging),
> > > it doesn't work any more. I have to reload ohci_hcd to make it work
> > > again.
> > >
> > > This is 100% reproducible and occurs on the two boxes above.
> >
> > I have carried out a binary search and found that the problem is caused by
> >
> > gregkh-usb-usbcore-remove-usb_suspend_root_hub.patch
>
> Tell me, what happens if you leave that patch installed, and you use
> the patch I sent last week (the one that removes a chunk of code from
> ohci-hub.c), and you also set CONFIG_USB_SUSPEND?
The problem continues to happen.
Moreover, if I revert the above patch and apply the patch removing code
from ohci-hub.c, the problem reappears.
> I think the real underlying problem here is that David's implementation of
> root-hub suspend in ohci-hcd is incompatible with the overall scheme I've
> been working on. In the end I'll probably have to rewrite the ohci-hcd
> code.
Well, at this point I can only help you by testing some code. ;-)
Seriously, if you have any new patches to test, please let me know.
Greetings,
Rafael
--
You never change things by fighting the existing reality.
R. Buckminster Fuller
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