Determining USB device port


lsusb | grep UART 

returns:

Bus 001 Device 006: ID 10c4:ea60 Cygnal Integrated Products, Inc. CP210x UART Bridge / myAVR mySmartUSB light 

How can I confirm that the device is at: /dev/ttyUSB0 without unplugging the USB device?

ls /dev/tty* | grep USB 

returns /dev/ttyUSB0 only when the device is plugged in, which seems to confirm the USB port location. I am seeking a confirmation process does not involve unplugging the USB device.