Davíð Steinn Geirsson
4c368c02b5
Update nusb to c1380673 which allows multiple IsoEndpoint instances per address, enabling concurrent URB submission from separate threads. Change UsbInterfaceHandler trait methods from &mut self to &self and replace Arc<Mutex<Box<dyn Handler>>> with Arc<dyn Handler>. This removes the serialization bottleneck where the handler mutex was held for the entire USB transfer duration, causing ISO audio to play at ~67% speed. Handlers needing interior mutability (HID, CDC) now use Mutex on individual fields. Passthrough handlers already used Arc<Mutex<>> internally and need no changes. Co-Authored-By: Claude Opus 4.6 (1M context) <noreply@anthropic.com> |
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