Pull Request Overview

This pull request updates the virtual spi driver to report back errors. In case of errors, the virtual spi driver was setting the op variable to ReadWriteDone and was calling do_next_op_async. The next time do_next_op was run, it was not doing anything as it thought the mix was in flight.

It also:

• adds error reporting to the bus library
• fixes the screen driver to report errors
• updates the bus component to take the spi to accept the spi configuration as arguments

Testing Strategy

This pull request was tested using a Pico Explorer Base

TODO or Help Wanted

• test using the Adafruit Clue nRF52840

Documentation Updated

• Updated the relevant files in /docs, or no updates are required.

Formatting

• Ran make prepush.