Hi, I am using OAK-FFC 3P on a laptop running Ubuntu 20.04. The udev rule is set. I am using the USB C cable came with the device. The device is plugged to a USB 3.0 port on my laptop. The OAK-FFC 3P behaves correctly based on `lsusb`. It shows up as 03e7:2485 after reset. And it shows up as 03e7:f63b after application loaded. But it always being identified as USB 2.0 device [upl-image-preview url=https://discuss.luxonis.com/assets/files/2023-06-12/1686611561-316417-screenshot-from-2023-06-12-18-02-45.png] [upl-image-preview url=https://discuss.luxonis.com/assets/files/2023-06-12/1686611566-30613-screenshot-from-2023-06-12-17-58-53.png] What can I do to make it identified as USB 3.0 device and use its maximum bandwidth? Thanks Lincoln

Hi @"jakaskerl"#p9177 You are right! It is the cable. I purchased 4 OAK-FFC 3P, and unfortunately found two of the 4 USB cables came with the product are faulty. [upl-image-preview url=https://discuss.luxonis.com/assets/files/2023-06-14/1686721807-907058-img-0204.jpg] But I am glad the board itself is good! Thanks for your help! Lincoln

Hi @"lincolnxlw"#p9175 Strange. I there a way you could check with another usb cable that is USB3 compatible? I think the only possibilities are: - bad/outdated usb drivers --> Update drivers - usb3 incompatible cable ---> change the cable (it could be faulty) - usb3 incompatible port --> change the port and make sure it's blue or is marked with SS sign. Let me know how it goes. Thanks, Jaka

OAK-FFC 3P not being identified as USB 3.0 device

lincolnxlw

Hi,

I am using OAK-FFC 3P on a laptop running Ubuntu 20.04. The udev rule is set. I am using the USB C cable came with the device. The device is plugged to a USB 3.0 port on my laptop.

The OAK-FFC 3P behaves correctly based on lsusb. It shows up as 03e7:2485 after reset. And it shows up as 03e7:f63b after application loaded. But it always being identified as USB 2.0 device

What can I do to make it identified as USB 3.0 device and use its maximum bandwidth?

Thanks

Lincoln

jakaskerl

Hi lincolnxlw
Can you confirm that a running device also uses usb2?

with dai.Device(pipeline) as device:
    print(device.getUsbSpeed())

You should see UsbSpeed.SUPER if your device uses full usb3 capability.

Sometimes, the host will act as though the connected device is usb2, since it is not running.

Thanks,
Jaka

lincolnxlw

jakaskerl

Thanks for the reply. The device is running in USB 2 mode even during runtime. The output

Usb speed: HIGH

Thanks

Lincoln

jakaskerl

Hi lincolnxlw
Strange. I there a way you could check with another usb cable that is USB3 compatible?
I think the only possibilities are:

bad/outdated usb drivers --> Update drivers
usb3 incompatible cable ---> change the cable (it could be faulty)
usb3 incompatible port --> change the port and make sure it's blue or is marked with SS sign.

Let me know how it goes.

Thanks,
Jaka

lincolnxlw

Hi jakaskerl

You are right! It is the cable. I purchased 4 OAK-FFC 3P, and unfortunately found two of the 4 USB cables came with the product are faulty.

But I am glad the board itself is good!

Thanks for your help!

Lincoln