How to use 4 USB webcam with NVIDIA Jetson TX2 using USB hub?

[ankitagr92]

Hello, I am trying to use 4 USB webcams with NVIDIA jetson TX2 but I am unable to get the output, the program shows the following error: VIDIOC_QUERYCTRL: Input/output error VIDIOC_STREAMON: No space left on device VIDIOC_STREAMON: No space left on device Traceback (most recent call last): File "multiCameraProcessing.py", line 73, in CaptureImages() File "multiCameraProcessing.py", line 70, in init self.processImages() File "multiCameraProcessing.py", line 51, in processImages frame3_undistort = self.undistort.image_undistort(frame3, camera_name_right) File "/home/nvidia/Desktop/Thesis/Programs_v3/Undistortion.py", line 25, in image_undistort dim1 = image.shape[:2][::-1] AttributeError: 'NoneType' object has no attribute 'shape'

Please suggest a solution on how to use 4 USB webcams together

[ex00]

Hi @ankitagr92, Do you try to use web cam inside dl-docker image? I think that the more suitable place for ask question about NVIDIA products is community forum: https://forums.geforce.com/default/board/25/nvidia-community/

[diffgg]

Hi, @ankitagr92 , I have met exact the same problem. Did you fix it?