From: Barry Song <song.bao.hua@xxxxxxxxxxxxx> /sys/bus/pci/devices/.../irq has been there for many years but it has never been documented. This patch is trying to document it. Acked-by: Greg Kroah-Hartman <gregkh@xxxxxxxxxxxxxxxxxxx> Signed-off-by: Barry Song <song.bao.hua@xxxxxxxxxxxxx> --- Documentation/ABI/testing/sysfs-bus-pci | 8 ++++++++ 1 file changed, 8 insertions(+) diff --git a/Documentation/ABI/testing/sysfs-bus-pci b/Documentation/ABI/testing/sysfs-bus-pci index 793cbb7..8d42385 100644 --- a/Documentation/ABI/testing/sysfs-bus-pci +++ b/Documentation/ABI/testing/sysfs-bus-pci @@ -96,6 +96,14 @@ Description: This attribute indicates the mode that the irq vector named by the file is in (msi vs. msix) +What: /sys/bus/pci/devices/.../irq +Date: August 2021 +Contact: Barry Song <song.bao.hua@xxxxxxxxxxxxx> +Description: + Historically this attribute represent the IRQ line which runs + from the PCI device to the Interrupt controller. With MSI and + MSI-X, this attribute is the first IRQ number of IRQ vectors. + What: /sys/bus/pci/devices/.../remove Date: January 2009 Contact: Linux PCI developers <linux-pci@xxxxxxxxxxxxxxx> -- 1.8.3.1