这是一个常见的问题,但没有解决方案,我安装了ubuntu14.04的USB端口是断开的,我只是重新启动一次,两次或三次,然后它将连接。这是dmesg |grep usb
的输出:
[ 29.376705] usb 2-7: Device not responding to set address.
[ 29.580760] usb 2-7: device not accepting address 5, error -71
[ 29.692831] usb 2-7: new full-speed USB device number 6 using xhci_hcd
[ 29.710358] usb 2-7: New USB device found, idVendor=0cf3, idProduct=3004
[ 29.710367] usb 2-7: New USB device strings: Mfr=0, Product=0, SerialNumber=0
[ 29.728078] usbcore: registered new interface driver rts5139
[ 30.009124] usb 2-4: USB disconnect, device number 2
[ 30.257612] usb 2-6: USB disconnect, device number 3
[ 30.293655] usb 2-7: USB disconnect, device number 6
发布于 2016-03-22 07:36:01
我创建了自己的udev规则。创建文件:/etc/udev/rues.d/usb-power.Rule。idVendor和idProduct使用lsusb。
试试这条规则:
ACTION=="add", ATTR{idVendor}=="0cf3", ATTR{idProduct}=="3004", RUN="/bin/sh -c 'echo 0 >/sys/\$devpath/authorized'"
https://askubuntu.com/questions/697284
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