On Fri, 30 Aug 2013, Kevin Archer wrote: > I changed the pci.quirks.c file based on > http://people.canonical.com/~lexical/bugs/lp981710/diff > that I found while searching for the commit that you suggested. > > diff --git a/drivers/usb/host/pci-quirks.c b/drivers/usb/host/pci-quirks.c > index 833b3c6..aac5b03 100644 > --- a/drivers/usb/host/pci-quirks.c > +++ b/drivers/usb/host/pci-quirks.c > @@ -862,9 +863,10 @@ static void __devinit > quirk_usb_handoff_xhci(struct pci_dev *pdev) > val |= XHCI_LEGACY_SMI_EVENTS; > /* Disable any BIOS SMIs and clear all SMI events*/ > writel(val, base + ext_cap_offset + XHCI_LEGACY_CONTROL_OFFSET); > - > +/* > if (usb_is_intel_switchable_xhci(pdev)) > usb_enable_xhci_ports(pdev); > +*/ > hc_init: > op_reg_base = base + XHCI_HC_LENGTH(readl(base)); > > I don't think it is the REAL fix this going forward, but it works for > me and this lap top. This is not a real fix. If something is wrong with the port-switching mechanism on your machine, it should be brought to the attention of the appropriate people. Unless you think this is a simple hardware flaw in your particular computer, not affecting anybody else. By the way, there is already a change in this area scheduled for the 3.12 kernel release: https://git.kernel.org/cgit/linux/kernel/git/gregkh/usb.git/commit?id=26b76798e0507429506b93cd49f8c4cfdab06896 > Thank you for helping and your patience and pointing me in the correct > direction. You're welcome. 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
