Skip to main content

Apple Developer Docs

IOKit / IOFWSpeed / kFWSpeedUnknownMask

kFWSpeedUnknownMask

Declaration

kFWSpeedUnknownMask = 0x80

Open on developer.apple.com

IOKitEnumeration Case

Mac Catalyst 13.0+macOS 10.2+

Built on 2026-08-05 · Snapshot snapshot-20260805-beta.2 (macOS 27.0) · Commit 4bc0d8f · by @g-cqd · based on Apple Developer Documentation