Programmatically disable USB 3

Autonomous Machines Jetson & Embedded Systems Jetson Orin NX
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1

We want to validate that both USB3 and USB2 work on our custom carrier board. Is there a way to programatically disable USB3 and restart the USB controller so that our test devices come back in FullSpeed mode?

3

Please refer to document and remove usb3 part from device tree.

https://docs.nvidia.com/jetson/archives/r36.3/DeveloperGuide/HR/JetsonModuleAdaptationAndBringUp/JetsonAgxOrinSeries.html?highlight=universal

4

That would be a device tree change, therefore not programatically

5

No way to do this in programatical way and also cannot restart usb controller. Most possible to restart the vbus-supply but that depends on hardware design too.

6

Okay thanks

8

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