If you saw a call to the following function call, you would probably have a fair chance at guessing what the function did, even without any proper comments:

bufferX[i] = adcX->ReadAdcValue();
bufferY[i] = adcY->ReadAdcValue();
bufferZ[i] = adcZ->ReadAdcValue();

The preceding code is fairly self-explanatory—we're reading ADC values and storing them in 3 different buffers. If all of our calls to get ADC readings use the same ReadAdcValue() calling convention and descriptively name the ADC channel, understanding the code is fast and easy.