Number assignment for "nvidia,usb3-port-fake"


When referencing the section “The xusb_padctl Node” in doc " Jetson Nano Platform Adaptation and Bring-Up", there is property “nvidia,usb3-port-fake” in “ports” subnode.

In Jetson Nano Developer Kit, I saw value “<3>” for the property in tegra210-porg-p3448-common.dtsi.

Could you please let me know how to assign the number? Thanks a lot.


For T210 series chip, if you want a otg port with only 2.0 function, then you need to add this fake port to it and assign a port that is not in use.

For example, usb3-3 is not in use in our hardware so we assign port 3 to it.