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//0x4 bytes (sizeof)
enum _PCI_HOTPLUG_SLOT_INTERRUPT
{
    SlotInterruptPresenceDetect = 0,
    SlotInterruptLatchChange = 1,
    SlotInterruptAttentionButton = 2,
    SlotInterruptLinkStateChange = 3,
    SlotInterruptPowerFault = 4,
    SlotInterruptMaximum = 7
};