Patron: Get CPU serial number

Vesa Kauppinen

If I want to find out the Patron CPU serial number, is it like this?

cat /sys/devices/soc0/serial_number

...or

cat /sys/devices/soc0/soc_uid

Second question: If this is the serial number of the CPU, is it unique to all devices?

Thank you!

/Vesa

martin_triska

Hello @Vesa-Kauppinen,

this has been subject to change between Linux kernel versions - the older one

cat /sys/devices/soc0/soc_uid

comes from the original iMX kernel and has been removed by NXP in newer releases. In our kernel image, we additionally preserve it for backward compatibility.

However,

cat /sys/devices/soc0/serial_number

is a "Linux standard" provided by recent NXP kernels that we recommend using as a unique identification.