This crate contains the driver traits for embassy-usb. HAL/BSP crates can implement these traits to add support for using embassy-usb for a given chip/platform.

The traits are kept in a separate crate so that breaking changes in the higher-level embassy-usb APIs don't cause a semver-major bump of this crate. This allows existing HALs/BSPs to be used with the newer embassy-usb without needing updates.

If you're writing an application using USB, you should depend on the main embassy-usb crate instead of this one.

This crate can run on any executor.