The calibration word the driver programs.
The current step the driver programs, in microamps per count.
The die id read at initialization, or null before it.
Resets the part, checks it is an INA226, writes the configuration and the calibration, and reads the calibration back. Rejects when nothing answers or another part does.
Triggers one shunt and bus conversion and resolves with every result, initializing the
part first if init has not run.
Programs the alert pin: which limit it watches, one function at a time, and the limit, in the units of the register the function watches.
A Texas Instruments INA226 driven over an I2C bus, measuring shunt and bus voltage, current, and power on demand.