On Thu, Feb 6, 2014 at 1:12 PM, Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> wrote: > On Fri, 31 Jan 2014, Dan Williams wrote: > >> The port pm_runtime implementation unconditionally clears FEAT_C_ENABLE >> after clearing PORT_POWER, but the bit is reserved on usb3 hub ports. >> We expect khubd to be suspended at this time so we need to clear any >> errors for usb2 ports. > > I'm not sure what you meant in that last sentence. Sorry, replace "suspended" with "prevented from running because the port state is not RPM_ACTIVE". > This is a _runtime_ > suspend routine, not system suspend. Therefore khubd will most > certainly be active. We need to clear the C_ENABLE feature (for > non-SuperSpeed hubs) so that khubd won't see it and do away with the > attached device. > -- 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
