Universal Serial Bus Device Class Definition for Audio Devices

TypeScript constants from Appendix A of the USB Audio Device Class Definition, Release 3.0.

Install

npm install usb-audio

Usage

import { FU_MUTE_CONTROL, FUNCTION_SUBCLASS_HEADPHONE } from 'usb-audio';

Every constant is exported with a literal type, so each name can be used as both a value and a type via typeof.

Naming

Identifiers follow the Linux kernel convention from include/linux/usb/audio-v3.h, without the UAC3_ prefix. A few names from 0.0.4 that collided between A.2 and A.7 (HEADPHONE, MICROPHONE, HEADSET, HEADSET_ADAPTER, SPEAKERPHONE, SPEAKER, FULL_ADC_3_0, GENERIC_I_O) are kept as @deprecated aliases.

Coverage

All of Appendix A from the spec (A.1 through A.24). The body of the spec — descriptor structures, request behavior, terminal types from the separate USB-IF Terminal Types document — is not yet included.

References

• USB Audio 3.0 spec (adopters agreement)
• Linux audio-v3.h
• Apple AppleUSBAudioDictionary.h