Alex Chiang wrote: > * Greg KH <greg@xxxxxxxxx>: > >> On Mon, Jan 25, 2010 at 09:27:18PM -0700, Alex Chiang wrote: >> >>> * Greg KH <greg@xxxxxxxxx>: >>> >>>> On Mon, Jan 25, 2010 at 09:57:45AM -0800, Gary Hade wrote: >>>> >>>>> Andreas, Would the physical slot number to PCI ID mapping >>>>> provided in /sys/bus/pci/slots by the 'pci_slot' driver possibly >>>>> be of any use to you? >>>>> >>>> That mapping should be already there if it is provided by the BIOS. >>>> >>> Where? Somewhere else in sysfs? >>> >>> /sys/bus/pci/slots/ only gets populated when a hotplug driver or >>> pci_slot are loaded. >>> >>> And if those slots aren't hotplug capable, then that directory >>> won't get populated. >>> >> Ah, I was thinking of the pci_slot stuff. >> > > Gah, I was attempting to clarify, but instead made things worse. > > If the slots aren't physically capable of hotplug, then loading a > hotplug driver (pciehp, acpiphp, shpchp, etc.) will not populate > the directory. However, you may still have a chance at populating > the directory if the slots are described in ACPI by the BIOS. > > >>> Finally, if the slots aren't described by ACPI, that directory >>> also won't get populated. >>> > > In that scenario -- non hotplug slots, but described by ACPI -- > you can modprobe pci_slot and you will indeed get entries in > /sys/bus/pci/slots/ > thanks for your clarification. the directory /sys/bus/pci/slots does not exist on my machine (kernel 2.6.25.20-0.5-pae, openSUSE 11.0). if i type "modprobe pci_slot" i get the following error: FATAL: Module pci_slot not found. is the module pci_slot only available in newer kernel releases? regards, Andreas Besse -- 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
