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Linux/PROCESSOR-SDK-AM57X: Issue with 2 USB cameras

Rahul Sharma
Expert 2725 points
Part Number: PROCESSOR-SDK-AM57X

Tool/software: Linux

Hi,

I am using PSDK5 on x15. 

Can i simultaneously use 2 USB cameras? I tries with simple opencv example and got the error-

VIDEOIO ERROR: V4L: Property <unknown property string>(6) not supported by device
VIDEOIO ERROR: V4L: Property <unknown property string>(6) not supported by device
libv4l2: error turning on stream: No space left on device
VIDIOC_STREAMON: No space left on device

v4l2-ctl --list-devices

UVC Camera (046d:0825) (usb-xhci-hcd.1.auto-1.1):
/dev/video1

UVC Camera (046d:0825) (usb-xhci-hcd.1.auto-1.3):
/dev/video2

Thanks.

  • 0
    TI__Guru**** 156311 points

    Hi,

    Rahul.. said:
    Can i simultaneously use 2 USB cameras?

    The linux kernel supports multiple UVC cameras simultaneously, but it is up to your application for how to use them.

    Rahul.. said:

    I tries with simple opencv example and got the error-

    VIDEOIO ERROR: V4L: Property <unknown property string>(6) not supported by device

    Do you see this error if you only attach one camera?

    If you don't use your opencv example, can you use gstreamer pipelines to stream from the two cameras?

  • 0
    TI__Guru**** 156311 points

    Rahul,

    I haven’t heard back from you, I’m assuming you were able to resolve your issue. If not, just post a reply below (or create a new thread if the thread has locked due to time-out). thanks.