On Wed, 11 Sep 2013, Takashi Iwai wrote: > Reloading xhci-hcd module works no matter whether CONFIG_PM_RUNTIME=y > or not. (And yes, the device went to D3 at unload and to D0 at load, > as long as looking at lspci output.) Interesting. I thought there wasn't any code in the PCI core for putting devices back into D0 before probing. The idea is that during unbinding, the device should get set to D0 and should remain there. But with your patch, obviously that's not what happens. Something else must also be setting the device back to D0. Do you have any idea what? It's not xhci-hcd. 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
