Alan Stern <[email protected]> wrote:
Hi Alan,
> On Mon, 9 Jan 2006, Dmitry Torokhov wrote:
>
> > On Sunday 08 January 2006 16:23, Martin Bretschneider wrote:
> > > Hello,
> > >
> > > Jens Nödler who has got the same motheboard (Gigabyte GA-K8NF-9
> > > with nforce4 chipset) can confirm my problem. But he found out
> > > that the keyboard connected to the ps/2 port does work with
> > > kernel 2.6.15 if "USB keyboard support" is disabled in the BIOS.
> > >
> >
> > Ok, I an getting enough reports to conclude that the new
> > usb-handoff code does not seem to be working. Let's try CCing USB
> > list and other parties involved :)
> >
> > Greg, Alan, any ideas?
>
> It would be nice to know which part of the usb-handoff code causes
> the problem. In the 2.6.15 source file
> drivers/usb/host/pci-quirks.c, at the end of the file is this
> routine:
>
> static void __devinit quirk_usb_early_handoff(struct pci_dev *pdev)
> {
> if (pdev->class == PCI_CLASS_SERIAL_USB_UHCI)
> quirk_usb_handoff_uhci(pdev);
> else if (pdev->class == PCI_CLASS_SERIAL_USB_OHCI)
> quirk_usb_handoff_ohci(pdev);
> else if (pdev->class == PCI_CLASS_SERIAL_USB_EHCI)
> quirk_usb_disable_ehci(pdev);
> }
>
> If you comment out the call to quirk_usb_handoff_uhci and rename
> the /lib/modules/2.6.15/kernel/drivers/usb/host/uhci-hcd.ko file so
> that it doesn't get loaded automatically, does that fix things?
>
> Similarly, if you comment out the call to quirk_usb_disable_ehci
> and rename /lib/modules/.../ehci-hcd.ko so that it doesn't get
> loaded, does that help?
>
> Leonid's system log showed that he doesn't have an OHCI controller,
> but if Martin does then he should do the same test with
> quirk_usb_handoff_ohci.
Yes, I also use the OHCI controller (I guessed that this is
necessary for low speed USB devices...), I commented the calls of
quirk_usb_disable_?hci and renamed the compiled modules so that they
cannot be loaded. Thus, the PS/2 keyboard *does* work with "USB
keyboard support" enabled in the BIOS with kernel 2.6.15. But - of
cource - no USB device does work.
Kind regards, Martin
--
http://www.bretschneidernet.de OpenPGP-key: 0x4EA52583
(o_ Ernest Hemingway:
(o_ (o_ (o_ //\ I like to listen. I have learned a great deal
(\)_(\)_(\)_V_/_ from listening carefully. Most people never listen.
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