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Apple Developer Docs

IOKit / Endpoint direction / kUSBNone

kUSBNone

Declaration

kUSBNone = kIOUSBEndpointDirectionUnknown

Open on developer.apple.com

IOKitEnumeration Case

Mac Catalyst 18.4+macOS 10.0+

Built on 2026-06-23 · Snapshot snapshot-20260612-beta.1 (macOS 27.0) · Commit 976ebc0 · by @g-cqd · based on Apple Developer Documentation