Hello Guenter, Datasheet: http://www.ti.com/lit/ds/symlink/ina3221.pdf (At page 32, chapter 8.6.2.14 and 8.6.2.15) I have two registers that I need to expose to user space: Shunt-Voltage-Sum and Shunt-Voltage-Limit registers Right now in[123]_input of INA3221 are for voltage channels while in[456]_input are for Shunt voltage channels. So can I just use in7_input and in7_crit for them? Thanks Nicolin