tinyusb.git/examples/host/audio_host/README.md, branch codex/class-reference-docs

implement per channel volume control

2026-09-02T13:24:36Z

Signed-off-by: HiFiPHile

Improve audio host stream event reporting

2026-08-27T13:28:07Z

Report asynchronous start and stop completion with transfer results. Replace the ambiguous stream error callback and byte count with explicit transfer-failure events, and ignore stale completions after stopping.

audio: service example FIFOs at watermarks

2026-08-27T08:36:52Z

Move capture and playback FIFO servicing into the main-loop task at half-full and half-drained watermarks. Use transfer callbacks only for diagnostics, share one conversion buffer, and demonstrate that application reads and writes need not be synchronized to USB callbacks. Signed-off-by: HiFiPHile

audio: expose generic Audio Control requests

2026-08-27T08:34:34Z

Remove the narrow public Feature Unit request API while retaining managed mute and volume helpers. Expose validated Audio Control descriptors during enumeration and provide raw asynchronous and synchronous entity requests for advanced controls. Signed-off-by: HiFiPHile

audio: allow stopped duplex streams to change rate

2026-08-27T08:34:33Z

Enforce a shared capture/playback sample rate only while the opposite stream is running. This lets both stopped streams be configured in either order while preventing a live shared clock from changing underneath a transfer. Signed-off-by: HiFiPHile

audio: add UAC2 host streaming support

2026-08-27T08:34:33Z

Add protocol-selectable UAC1/UAC2 parsing, UAC2 terminal and Feature Unit topology, Clock Source discovery, sampling-frequency ranges, and protocol-specific stream controls. Cover UAC2 playback, capture, control discovery, and malformed descriptors with unit tests. Signed-off-by: HiFiPHile

implement explicit feeback support

2026-08-26T07:16:49Z

Signed-off-by: HiFiPHile

address copilot review findings

2026-08-25T09:30:51Z

Signed-off-by: HiFiPHile

feat(audio): discover stream mute and volume controls

2026-08-25T07:29:08Z

Inspect each associated Feature Unit during mount, cache master mute support and the common MIN, MAX, and RES volume range, and ignore units with neither control. Add typed asynchronous and synchronous mute and volume APIs and demonstrate them in the host example. Signed-off-by: HiFiPHile

fix(audio): drive streams from transfer completion

2026-08-25T07:28:12Z

Keep capture and playback transfers continuously armed from their completion callbacks. Capture overwrites the oldest complete frames when full, while playback sends silence on underrun without consuming partial queued audio. Signed-off-by: HiFiPHile