Fix I2C init error on BeagleBone Black#22

Merged

dhalbert merged 4 commits intoadafruit:masterfrom

Nov 19, 2018

Commits on Oct 22, 2018

Fix I2C init error on BeagleBone Black
pdp7
committed

Commits on Oct 29, 2018

Commits on Nov 19, 2018

Attempt to write then fall back to read for i2c detect
pdp7
committed