Signed-off-by: WANG Siyuan <wangsy30@xxxxxxxxxx> --- Documentation/filesystems/sysfs-pci.txt | 17 +++++++++++++++++ 1 file changed, 17 insertions(+) diff --git a/Documentation/filesystems/sysfs-pci.txt b/Documentation/filesystems/sysfs-pci.txt index 74eaac2..1cca102 100644 --- a/Documentation/filesystems/sysfs-pci.txt +++ b/Documentation/filesystems/sysfs-pci.txt @@ -107,6 +107,23 @@ desired, e.g. 0xa0000 for the VGA frame buffer. The application can then simply dereference the returned pointer (after checking for errors of course) to access legacy memory space. +PCI Physical Slot +-------------------------------------- + +PCI Physical Slot is defined by ACPI object _SUN of the firmware. The Physical +Slot can be used by application such as lspci. +The slot information is located in /sys/bus/pci/slots/<name>/ +e.g. + /sys/bus/pci/slots/2/ + |-- adapter + |-- address + |-- attention + |-- cur_bus_speed + |-- latch + |-- max_bus_speed + |-- module -> ../../../../module/acpiphp + `-- power + Supporting PCI access on new platforms -------------------------------------- -- 2.7.3 -- To unsubscribe from this list: send the line "unsubscribe linux-doc" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
