hi, i use jetson orin nano ,i can conect 2 usb camera is ok ,but when i start connect 3 usb camera,it error ?
My Purpose is use 4 usb camera in 1 jetson orin nano ,Can do it? here is some file
lsusb -t
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=tegra-xusb/4p, 10000M
|__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/4p, 10000M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=tegra-xusb/4p, 480M
|__ Port 1: Dev 13, If 0, Class=Hub, Driver=hub/4p, 480M
|__ Port 1: Dev 14, If 0, Class=Vendor Specific Class, Driver=r8152, 480M
|__ Port 4: Dev 36, If 0, Class=Human Interface Device, Driver=usbhid, 12M
|__ Port 4: Dev 36, If 1, Class=Human Interface Device, Driver=usbhid, 12M
|__ Port 2: Dev 15, If 0, Class=Hub, Driver=hub/4p, 480M
|__ Port 4: Dev 17, If 0, Class=Mass Storage, Driver=usb-storage, 480M
|__ Port 2: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M
|__ Port 1: Dev 34, If 1, Class=Video, Driver=uvcvideo, 480M
|__ Port 1: Dev 34, If 0, Class=Video, Driver=uvcvideo, 480M
|__ Port 4: Dev 35, If 0, Class=Video, Driver=uvcvideo, 480M
|__ Port 4: Dev 35, If 1, Class=Video, Driver=uvcvideo, 480M
|__ Port 3: Dev 37, If 0, Class=Video, Driver=uvcvideo, 480M
|__ Port 3: Dev 37, If 1, Class=Video, Driver=uvcvideo, 480M
|__ Port 3: Dev 3, If 0, Class=Wireless, Driver=rtk_btusb, 12M
|__ Port 3: Dev 3, If 1, Class=Wireless, Driver=rtk_btusb, 12M
4l2-ctl --list-devices
NVIDIA Tegra Video Input Device (platform:tegra-camrtc-ca):
/dev/media0
USB 2.0 Camera: RGB_USB (usb-3610000.usb-2.1):
/dev/video0
/dev/video1
/dev/media1
USB 2.0 Camera: RGB_USB (usb-3610000.usb-2.3):
/dev/video2
/dev/video3
/dev/media2
USB02: USB02 (usb-3610000.usb-2.4):
/dev/video4
/dev/video5
/dev/media3
ls /dev/video*
/dev/video0 /dev/video1 /dev/video2 /dev/video3 /dev/video4 /dev/video5
and also ı can open one by one expect video1 and video5 using this code : nvgstcapture-1.0 --mode=2 --camsrc=0 --cap-dev-node=4 --automate --capture-auto ( it works for 0 and 2 also )