Greg: The following series of patches builds up to implementing runtime PM for PCI-based USB host controllers. (xHCI doesn't have the necessary suspend/resume support yet, but when it gets added it should work okay with this stuff.) By default, autosuspend for host controllers is forbidden. The user has to allow it by writing "auto" to the controller's power/control sysfs attribute, for example: echo auto >/sys/bus/usb/devices/usb2/../power/control The first six patches do some refactoring and rearranging of the code in hcd-pci.c, as well as making a slight change to the HCD driver interface, handling wakeup races, and adding support for Intel's vendor-specific UHCI wakeup flags. The last patch finally adds the runtime PM support. The last patch depends on another change which has already been accepted into the PCI development tree. It can be found as commit a63bf9b20d4694f348f33a285e4ca5a9b65eb235 (PCI: change device runtime PM settings for probe and remove) in linux-next. Is it possible for you to import that commit into the gregkh-usb tree, so that everything will remain consistent? 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
