从 USB 驱动程序获取低级信息

从 USB 驱动程序获取低级信息

我的目标是检查连接树莓派 USB 端口的 5V 引脚和 D+ 引脚的事件。这是此事件的 dmesg 输出:

[24242.563906] usb 3-6: USB disconnect, device number 3
[24242.563910] usb 3-6.1: USB disconnect, device number 4
[24248.106279] usb 3-6: new full-speed USB device number 5 using xhci_hcd
[24248.218469] usb 3-6: device descriptor read/64, error -71
[24248.434651] usb 3-6: device descriptor read/64, error -71
[24248.650752] usb 3-6: new full-speed USB device number 6 using xhci_hcd
[24248.762919] usb 3-6: device descriptor read/64, error -71
[24248.979099] usb 3-6: device descriptor read/64, error -71
[24249.195208] usb 3-6: new full-speed USB device number 7 using xhci_hcd
[24249.195342] usb 3-6: Device not responding to setup address.
[24249.399529] usb 3-6: Device not responding to setup address.
[24249.603537] usb 3-6: device not accepting address 7, error -71
[24249.715631] usb 3-6: new full-speed USB device number 8 using xhci_hcd
[24249.715763] usb 3-6: Device not responding to setup address.
[24249.919989] usb 3-6: Device not responding to setup address.
[24250.123970] usb 3-6: device not accepting address 8, error -71
[24250.124031] usb usb3-port6: unable to enumerate USB device

除了解析 /var/log/messages 之外,还有其他选项可以检查此事件吗?

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