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Apple Developer Docs

IOKit / kUSBAlternateSetting

Contents

Declaration
Discussion

kUSBAlternateSetting

Declaration

#define kUSBAlternateSetting

Discussion

The field in the USB Configuration Descriptor corresponding to the number of configurations

Open on developer.apple.com

IOKitMacro

Mac Catalyst 13.0+macOS 10.0+

Declaration
Discussion

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