How to tell if usb 3.0 is used?

richardrl

Hi, I tried the OAK-1 W with multiple different cables (and a known USB3.0 cable) and it always shows like this on dmesg:

[786681.793974] usb 8-5: USB disconnect, device number 24

[786683.879931] usb 7-5: new high-speed USB device number 53 using xhci_hcd

[786684.106981] usb 7-5: New USB device found, idVendor=03e7, idProduct=2485, bcdDevice= 0.01

[786684.106984] usb 7-5: New USB device strings: Mfr=1, Product=2, SerialNumber=3

[786684.106986] usb 7-5: Product: Movidius MyriadX

[786684.106988] usb 7-5: Manufacturer: Movidius Ltd.

[786684.106989] usb 7-5: SerialNumber: 03e72485

This means it is usb2.0 because it says "high-speed"

How can I make sure it uses usb 3.0??

OskarSonc

Hi @richardrl ,

The 2485 device ID is the unbooted MyriadX and always shows as UsbSpeed.HIGH (USB2).
Once the device boots it should re-enumerate as f63b and then negotiate UsbSpeed.SUPER if USB3 works.

You can confirm with DepthAI:

import depthai as dai
with dai.Device() as d:
    print("USB speed:", d.getUsbSpeed())

# Expect UsbSpeed.SUPER for USB3

If it stays at HIGH after boot, check cable/port and follow our USB deployment guide:
https://docs.luxonis.com/hardware/platform/deploy/usb-deployment-guide/#OAK%20USB%20deployment%20guide-Initial%20Connection-Debugging

Best
Oskar