Hi Bjorn, One of the functionality of pci_reset_bus could reset the secondary bus as described in the configuration space - pci_reset_bridge_secondary_bus() Does this reset require in the part of enumeration, what is usage of this in root complex driver perspective. Any help! thanks! -- Jagan. -- To unsubscribe from this list: send the line "unsubscribe linux-pci" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html