On Thu, 12 May 2011, Tanya Brokhman wrote: > > >+ retval = usb_add_hcd(hs_hcd, 0, IRQF_DISABLED | IRQF_SHARED); > > Why IRQF_DISABLED | IRQF_SHARED? you don't interrupts at all. > > I used xhci as reference for this patch. This is the way xhci driver adds > the hcds. You can find it in xhci_pci_probe(). > I'm not very familiar with how this two hcds (main and shared shcd) will > work together so I thought these flags are needed for their co-operation. > Was my assumption mistaken? What flags should I use? You don't need any flags at all, because dummy-hcd does not handle any hardware interrupts. > Also, Sergei pointed out that IRQF_DISABLED is deprecated so it seems to me > that xhci needs an update as well.... Plus every other source file that uses IRQF_DISABLED... Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html