Xavier AGX USB resetting

Autonomous Machines Jetson & Embedded Systems Jetson AGX Xavier
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#1

We have the AGX Xavier connected to two USB-C cameras. In our kernel logs we are often seeing the tegra-xusb reset the devices and we then loose our feed to the cameras. What can cause the usb module to attempt a reset?

Jan 20 11:48:26 MHBIVR11R kernel: [598849.290515] usb 2-3: reset SuperSpeed USB device number 2 using tegra-xusb

The cameras are powered by an external pin rather than USB, but we don’t understand what can cause these resets.

#2

Probably the most common cause is power consumption. Can you try using an externally powered HUB? If the camera is still self-powered, then I don’t know.

#3

Ive run into a lot of issues with USB power management on the jetsons, especially if hubs are involved. Disabling it by adding usbcore.autosuspend=-1 to the kernel command line usually fixes it.

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