Re: [linux-usb-devel] Re: 2.6.13-mm2

David Brownell
2005-09-29T00:09:35Z

> > So it's as I said: _lack_ of such calls can't be an issue.
>
> yep, but doing the free_irq() on suspend can be. and is in some cases.

Your other theory is more interesting:

> > So _which_ device is generating this IRQ??
>
> USB ohci controller having no handler. yenta shares the line, has the
> correct handler installer, sees the interrupt, does not handle it since
> it was not the cardbus bridge generating the interrupt but ohci.

You could try adding

ohci_writel(ohci, OHCI_INTR_MIE, &ohci->regs->intrdisable);

near the end of ohci_pci_suspend().

- Dave