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Apple Developer Docs

IOKit / Interface SubClass / kUSBTestMeasurementSubClass

kUSBTestMeasurementSubClass

Declaration

kUSBTestMeasurementSubClass = 0x03

Open on developer.apple.com

IOKitEnumeration Case

Mac Catalyst 18.4+macOS 10.3+

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