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//0x4 bytes (sizeof)
enum _ARBITER_REQUEST_SOURCE
{
    ArbiterRequestUndefined = -1,
    ArbiterRequestLegacyReported = 0,
    ArbiterRequestHalReported = 1,
    ArbiterRequestLegacyAssigned = 2,
    ArbiterRequestPnpDetected = 3,
    ArbiterRequestPnpEnumerated = 4
};