How to determine if .begin() worked

[emg184]

I was wondering if there is a way to determine if calling .begin() on an i2c chip worked. I looked through the libraries for the ina219 and i dont see a return value for the function. I want to make sure that when i execute a piece of my program that if .begin() fails i can handle that error but it doesnt appear that there is anything returned from that function to check for.

[adafruit_support_mike]

There's no general method, and sometimes all the .begin() methods do is store pin values in a data structure for use later.

The simplest way to check a connection is to emit a read command for the device's address and see if the device answers. For the INA219, the configuration register would be a decent choice.