Blink the device.
Blink the LED of the device to identify it.
Blink the device for 15 seconds:
yubihsm> blink 0 15
Tc = 0x6b
Lc = 1
Vc = S
S := Seconds to blink for (1 byte)
Tr = 0xeb
Lr = 0
Vr = Ø