Driver for an NXP PCA9672 8-bit port expander.
The PCA9672 is an 8-bit port expander where each of the bits can function as either an input or an output.
All correct at time of writing, but as always, manufacturers love to move things around on their website.
This code has been tested using an LPC800-MAX.
|pca9672_initialize_i2c||Initialize bus expander on I2C bus|