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.