tinyusb.git/examples/host/audio_host/src/audio_app.c, branch master

improve example details

2026-09-03T02:46:14Z

Signed-off-by: HiFiPHile

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: 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

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): discard capture data without playback

2026-08-25T07:29:07Z

Continue draining the capture FIFO but skip channel conversion and writes when playback is unavailable or intentionally stopped. This keeps capture running safely in microphone-only phases. Signed-off-by: HiFiPHile

fix(audio): keep stream state consistent on control failures

2026-08-25T07:29:07Z

Route asynchronous activation and sampling-frequency failures through the stream error callback. Keep a running stream active when SET_INTERFACE alt 0 cannot be submitted so stop can be retried without diverging from device state. Signed-off-by: HiFiPHile

fix(audio): generate a continuous high-resolution test tone

2026-08-25T07:28:13Z

Replace the six-sample waveform with a 64-entry sine table and phase accumulator. The example now generates a continuous 1 kHz tone at the selected rate and packs the configured channel count correctly. Signed-off-by: HiFiPHile