On Thu, 16 Jan 2014, Bjorn Helgaas wrote: > I think dev->irq is supposed to be valid after pci_enable_device(), so > it seems like it would make sense to clear PCI_COMMAND_INTX_DISABLE > there.
Okay. > I don't know why a BIOS would leave PCI_COMMAND_INTX_DISABLE set for > the EHCI device. Does it support MSI, and the BIOS assumes the OS > should use that? I don't see any MSI support in the EHCI code. In As far as I know, there aren't any EHCI designs that use MSI. And there is no particular reason why a BIOS would leave INTX_DISABLE set, although come to think of it, there doesn't seem to be any reason why a BIOS should leave that bit clear either. > any case, this doesn't seem like something we need to depend on the > BIOS to do for us. Could you post a patch for Gaggery or Jamie to try out? Alan Stern -- To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
