Fully convert to BusIO?

[caternuson]

This library is sort of half way there? Adafruit_EPD is using BusIO:

Adafruit_EPD/src/Adafruit_EPD.h

Line 29 in f711ec8

#include <Adafruit_SPIDevice.h>

but not Adafruit_MCPSRAM:

Adafruit_EPD/src/Adafruit_MCPSRAM.h

Line 2 in f711ec8

#include <SPI.h>

Also, Adafruit BusIO is not currently listed as a dependency in library.properties.

[ladyada]

sure, not priority but can do. also busio is a subdep of other deps, if it passes CI, the dep list is fine :)

[caternuson]

Ah, OK. Chained deps. This'll bring in busio:
https://github.com/adafruit/Adafruit-GFX-Library/blob/f542ec270f264e2aff9a4553172a730b07e559df/library.properties#L10