How to get unique ID of some component on PCB

[Robert LabTeam]

Hi,
I need to name my device by unique ID. Is there any way to get unique number of MCU or other peripheral?

[martinayotte]

If you're talking about Serial Number of the CPU (SID), which is used to build MAC address, you can see it in /proc/cpuinfo on Mainline kernel (I don't know if Legacy is also providing it).