On Wed, Apr 05, 2023 at 10:20:45AM +0200, Johan Hovold wrote: > Alan did point out though, that the ehci driver returns a string like > "suspended" when trying to access registers for a suspended device. > > That behaviour dates back to before the git era though and long before > we had runtime PM. In fact, ehci still does not seem to implement > runtime PM so this check would essentially only kick when the HCD is > dead IIUC. In fact there is runtime PM support for ehci-hcd. You probably missed it because the routines are defined in core/hcd-pci.c. Alan Stern
