usb 3.0 port issue

Forum Forums System-on-Module usb 3.0 port issue

This topic contains 0 replies, has 1 voice, and was last updated by  alexlin_1 5 months ago.

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    alexlin_1
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    Hello,

    When I use v4l2 to open /dev/video1 (camera yuv422 format)

    I also find the error:

    [ 16.663811] usb 2-1: WARN: Max Exit Latency too large
    [ 16.668905] usb 2-1: Could not enable U1 link state, xHCI error -22.
    [ 16.675867] usb 2-1: WARN: Max Exit Latency too large
    [ 16.680960] usb 2-1: Could not enable U2 link state, xHCI error -22.

    PS: usb3.0 Camera, 640×480 100fps yuv422 format

    The system is easy to close the usb, must re connect the usb, when i normally used for 1min.

    [ 244.093461] audit: type=1701 audit(1552914283.085:5): auid=4294967295 uid=0 gid=0 ses=4294967295 pid=3338 comm=”video_test”

    alex

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