aw21 dev # dmesg | tail
[ 1213.320585] usb 1-1.3: Manufacturer: ©Microsoft Corporation
[ 1213.320588] usb 1-1.3: SerialNumber: 0B7A496
[ 1213.320690] usb 1-1.3: usb_probe_device
[ 1213.320695] usb 1-1.3: configuration #1 chosen from 1 choice
[ 1213.321172] usb 1-1.3: adding 1-1.3:1.0 (config #1, interface 0)
[ 1213.321254] usb 1-1.3: adding 1-1.3:1.1 (config #1, interface 1)
[ 1213.321345] usb 1-1.3: adding 1-1.3:1.2 (config #1, interface 2)
[ 1213.321405] usb 1-1.3: adding 1-1.3:1.3 (config #1, interface 3)
[ 1213.323138] drivers/usb/core/inode.c: creating file '005'
[ 1213.323166] hub 1-1:1.0: state 7 ports 6 chg 0000 evt 0008