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Apple Developer Docs

IOKit / kUSBDeviceSubClass

Contents

Declaration
Discussion

kUSBDeviceSubClass

Declaration

#define kUSBDeviceSubClass

Discussion

The field in the USB Device Descriptor corresponding to the device sub class

Open on developer.apple.com

IOKitMacro

Mac Catalyst 13.0+macOS 10.0+

Declaration
Discussion

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