Raspberry Pi Python Library for SwitchDoc Labs I2C Mux (TCA9545A) Breakout Board
SwitchDoc Labs, LLC April 2, 2015
Run testSDL_Pi_TCA9545.py to test all three channels
More Information on www.switchdoc.com
January 17, 2016: Verified to work with new I2CMux Grove board from SwitchDoc Labs
April 10, 2015: Removed debug statement in read_control_register