On Thursday 10 January 2008, Alan Stern wrote: > This patch (as1031) adds a short delay to the bus-suspend routine in > ehci-hcd. Without it some devices disconnect when they should > suspend. > > Signed-off-by: Alan Stern <[EMAIL PROTECTED]> > CC: David Brownell <[EMAIL PROTECTED]>
Ack. :) > --- > > Index: usb-2.6/drivers/usb/host/ehci-hub.c > =================================================================== > --- usb-2.6.orig/drivers/usb/host/ehci-hub.c > +++ usb-2.6/drivers/usb/host/ehci-hub.c > @@ -172,6 +172,10 @@ static int ehci_bus_suspend (struct usb_ > } > } > > + /* Apparently some devices need a >= 1-uframe delay here */ > + if (ehci->bus_suspended) > + udelay(150); > + > /* turn off now-idle HC */ > ehci_halt (ehci); > hcd->state = HC_STATE_SUSPENDED; > - To unsubscribe from this list: send the line "unsubscribe linux-usb" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
