READ_EIN/READ_EOUT

[Andrew Jeffery]

On Tue, 12 Jan 2021, at 08:18, Mike Jones wrote:
> Within the PMBus standard are two commands for energy: READ_EIN, READ_EOUT.
> 
> These commands exist on both regulators and hot swap devices.
> 
> - Are these functions getting used?
>  -And if so, to what purpose, examples of where to look in the layers 
> for the usage, and any other helpful pointers

In theory you should only need to look in the kernel, but we also have a 
userspace project that is implementing a pmbus subsystem in userspace (which is 
unfortunate):

https://github.com/openbmc/phosphor-power

Andrew