On Tue, 11 Aug 2015, Bjørn Mork wrote: > Oliver Neukum <oneukum@xxxxxxxx> writes: > > >> I hope some of the USB experts can tell us what the correct behaviour > >> is > >> here. Should the driver treat EPROTO like ESHUTDOWN? Or should the > >> host controller use some ESHUTDOWN instead? > > > > No. ESHUTDOWN is reserved for the removal of the HC. > > Then I have to ask: Why do I see ESHUTDOWN when I pull the modem from > one of my ehci-pci ports? That error code might come from something other than an URB status value. The ehci-hcd driver uses ESHUTDOWN only when the EHCI hardware itself is inaccessible -- either because the controller is suspended (D3) or because the driver is unbinding. 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
