Checking the API documentation

We'll be using the dk Board Support Package. It's good to have its API documentation handy. You can generate the documentation for that crate from the command line:

✅ Run the following command from within the nrf52-code/usb-app folder. It will open the generated documentation in your default web browser. Note that if you run it from inside the nrf52-code/boards/dk folder, you will find a bunch of USB-related documentation missing, because we disable that particular feature by default.

cargo doc --open

NOTE: If you are using Safari and the documentation is hard to read due to missing CSS, try opening it in a different browser.

✅ Browse to the documentation for the dk crate, and look at what is available within the usbd module. Some of these functions will be useful later.