Adafruit MCP23017 Library Questions....

[mbramble]

I don't know if I'm blind or dumb, but I can't seem to find a function to read/write registers other that GPIOA/B. How do I go about addressing the other registers (IODIR, GPINTEN, etc.)?? I see there are functions to work with a single pin to set it's function (Input/Output, polarity, interrupt enable/disable, etc.), but nothing to address the "control" registers as units.

Any help would be most appreciated.

Library documentation
https://adafruit.github.io/Adafruit-MCP ... index.html
I have V 2.3.0 installed

[mikeysklar]

I see the issue here.

There are docs for the MCP23017 library which are specific to your chip doing the gpioAB stuff.

There are also docs for the base class which applies to all MCP23XXX variants which have all the fun stuff you are asking about.