> Why are you not providing me with a helpful explanation of what is happening here
> a helpful explanation
The camera is not supported in the version you are using, right? So, what do you expect to be helpful? I'm at loss, since "CM2" obviously means very little to you.
> where in the LibRaw code the pre_mul value is set from the White Balance Coefficients
Dear Sir:
> Why are you not providing me with a helpful explanation of what is happening here
> a helpful explanation
The camera is not supported in the version you are using, right? So, what do you expect to be helpful? I'm at loss, since "CM2" obviously means very little to you.
> where in the LibRaw code the pre_mul value is set from the White Balance Coefficients
What does search for pre_mul return?