On Mon, 3 Feb 2014, Alan Stern wrote: > On Mon, 3 Feb 2014, Josh Bendavid wrote: > > > Hi Alan, > > Yes, this hardware was in active use and working fine with 3.5. The usb/ir > > issue came up as soon as I moved to 3.13-rc8. (As I said, this was not the > > only change strictly speaking, given that I moved from Ubuntu to OpenElec, > > so there can well be other relevant distro-related changes) > > > > Unfortunately I prefer deep intellectual efforts which don't require much > > time... Speaking of which, an idea struck me this morning. Perhaps this patch will make a difference. (Remove any earlier patches first.) Without knowing the exact nature of the problem, it's not possible to say what will happen. But it's worth a try. Alan Stern Index: usb-3.13/drivers/usb/host/ohci-hcd.c =================================================================== --- usb-3.13.orig/drivers/usb/host/ohci-hcd.c +++ usb-3.13/drivers/usb/host/ohci-hcd.c @@ -801,6 +801,14 @@ static irqreturn_t ohci_irq (struct usb_ return IRQ_HANDLED; } + /* + * Clear all interrupts, enabled or not, except for WDH. + * WDH must remain set until after we have read the + * ohci->hcca->done_head value, because the controller can + * overwrite that value whenever WDH is clear. + */ + ohci_writel(ohci, ints & ~OHCI_INTR_WDH, ®s->intrstatus); + /* We only care about interrupts that are enabled */ ints &= ohci_readl(ohci, ®s->intrenable); -- 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
