When I try to connect my ER9XPro USB device to my Fedora 21 server, it fails
to connect with:
[1024110.158374] usb 1-7: new full-speed USB device number 15 using xhci_hcd
[1024110.312216] usb 1-7: device descriptor read/64, error -71
[1024110.565928] usb 1-7: device descriptor read/64, error -71
[1024110.819660] usb 1-7: new full-speed USB device number 16 using xhci_hcd
[1024110.973497] usb 1-7: device descriptor read/64, error -71
[1024111.227212] usb 1-7: device descriptor read/64, error -71
[1024111.480928] usb 1-7: new full-speed USB device number 17 using xhci_hcd
[1024111.482576] usb 1-7: Device not responding to setup address.
[1024111.693836] usb 1-7: Device not responding to setup address.
[1024111.894473] usb 1-7: device not accepting address 17, error -71
[1024112.047316] usb 1-7: new full-speed USB device number 18 using xhci_hcd
[1024112.047415] usb 1-7: Device not responding to setup address.
[1024112.298755] usb 1-7: Device not responding to setup address.
[1024112.498815] usb 1-7: device not accepting address 18, error -71
[1024112.498836] usb usb1-port7: unable to enumerate USB device
It is a direct connection (no hub).
Any ideas?
Cheers and thanks,
Stephen
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