How to get motherboard infos with Serial.println?

I try to get the infos about Arduino motherboard to write it with Serial.println. I used Google but not found anything good? Anybody know the code?

Exactly what information about the Arduino board do you want to print ?

The serial number (ID).

What Arduino motherboard are you referring to?

I attach an image. I want to get these informations.
Screenshot_1.png

Screenshot_1.png

VID/PID info comes from the Atmege16U2 which is programmed to act as the USB/Serial interface.
I don't know how to have the Mega2560 query that chip to get the info as the chip is programmed to act as a pass-thru device to a host PC.

Understand, thank you!