usb 1-1: new low speed USB device number 2 using ar71xx-ehci
hub 1-0:1.0: unable to enumerate USB device on port 1
usb 1-1: new full speed USB device number 3 using ar71xx-ehci
hub 1-0:1.0: unable to enumerate USB device on port 1
usb 1-1: new high speed USB device number 4 using ar71xx-ehci
Bus 001 Device 004: ID 13fe:3e00 Kingston Technology Company Inc. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub