Type Alias PIOMMU_QUERY_INPUT_MAPPINGS 

pub type PIOMMU_QUERY_INPUT_MAPPINGS = Option<unsafe extern "system" fn() -> NTSTATUS>;

Aliased Type

pub enum PIOMMU_QUERY_INPUT_MAPPINGS {
    None,
    Some(unsafe extern "system" fn() -> NTSTATUS),
}

Variants

None

No value.

Some(unsafe extern "system" fn() -> NTSTATUS)

Some value of type T.