We’re using a Jetson TK1 development board to develop a device that monitors a USB video camera (UVC stream) for long periods of time and we’re getting seemingly random disconnects/reconnects of the camera every 8 hours or so. It is not perfectly periodic or predictable.
We see the following in the system log:
Apr 7 06:56:31 tegra-ubuntu kernel: [70528.571185] hub 1-0:1.0: port 3 disabled by hub (EMI?), re-enabling…
Apr 7 06:56:31 tegra-ubuntu kernel: [70528.578773] usb 1-3: USB disconnect, device number 6
Apr 7 06:56:31 tegra-ubuntu kernel: [70528.870698] usb 1-3: new high-speed USB device number 7 using tegra-xhci
Apr 7 06:56:31 tegra-ubuntu kernel: [70528.887588] usb 1-3: New USB device found, idVendor=05a3, idProduct=9520
Apr 7 06:56:31 tegra-ubuntu kernel: [70528.887594] usb 1-3: New USB device strings: Mfr=1, Product=2, SerialNumber=0
Apr 7 06:56:31 tegra-ubuntu kernel: [70528.887598] usb 1-3: Product: HD USB Camera
Apr 7 06:56:31 tegra-ubuntu kernel: [70528.887601] usb 1-3: Manufacturer: HD Camera Manufacturer
Apr 7 06:56:31 tegra-ubuntu kernel: [70528.888630] uvcvideo: Found UVC 1.00 device HD USB Camera (05a3:9520)
Apr 7 06:56:32 tegra-ubuntu kernel: [70529.019239] input: HD USB Camera as /devices/platform/tegra-xhci/usb1/1-3/1-3:1.0/input/input8
Apr 7 06:56:32 tegra-ubuntu mtp-probe: checking bus 1, device 7: “/sys/devices/platform/tegra-xhci/usb1/1-3”
Apr 7 06:56:32 tegra-ubuntu mtp-probe: bus: 1, device: 7 was not an MTP device
This is the camera:
Has anyone seen this type of thing before or have an idea on how to resolve it?