[ 3220.480021] usb 5-2: new full speed USB device using uhci_hcd and address 2
[ 3297.080072] usb 5-2: USB disconnect, address 2
[ 3319.788028] usb 5-2: new full speed USB device using uhci_hcd and address 3
[ 3360.320066] usb 5-2: USB disconnect, address 3
[ 3385.360026] usb 4-2: new full speed USB device using uhci_hcd and address 3
[ 3779.194904] usb 4-2: USB disconnect, address 3
[ 3792.824021] usb 4-2: new full speed USB device using uhci_hcd and address 4
[ 3868.224055] usb 4-2: USB disconnect, address 4
[ 3869.704026] usb 4-2: new full speed USB device using uhci_hcd and address 5
[ 3929.728058] usb 4-2: USB disconnect, address 5
[ 4220.208028] usb 4-2: new full speed USB device using uhci_hcd and address 6
[ 4220.384036] usb 4-2: device descriptor read/64, error -71
[ 4441.352057] usb 4-2: USB disconnect, address 6
[ 4644.704022] usb 4-2: new full speed USB device using uhci_hcd and address 7
[ 4701.008062] usb 4-2: USB disconnect, address 7
[ 4702.504031] usb 4-2: new full speed USB device using uhci_hcd and address 8
[ 4889.736058] usb 4-2: USB disconnect, address 8
[ 4892.208019] usb 4-2: new full speed USB device using uhci_hcd and address 9