Google Compatibility Test Suite (CTS) User Manual - Manual (Page 15)

4. Console output similar to below will appear on the computer’s console.
out/host/linux­x86/cts­verifier/android­cts­verifier$
./cts­usb­accessory
CTS USB Accessory Tester
Found possible Android device (413c:2106) ­ attempting to switch to
accessory mode...
Failed to read protocol version
Found Android device in accessory mode (18d1:2d01)...
[RECV] Message from Android device #0
[SENT] Message from Android accessory #0
[RECV] Message from Android device #1
[SENT] Message from Android accessory #1
[RECV] Message from Android device #2
[SENT] Message from Android accessory #2
[RECV] Message from Android device #3
[SENT] Message from Android accessory #3
[RECV] Message from Android device #4
[SENT] Message from Android accessory #4
[RECV] Message from Android device #5
[SENT] Message from Android accessory #5
[RECV] Message from Android device #6
[SENT] Message from Android accessory #6
[RECV] Message from Android device #7
[SENT] Message from Android accessory #7
[RECV] Message from Android device #8
[SENT] Message from Android accessory #8
[RECV] Message from Android device #9
[SENT] Message from Android accessory #9
[RECV] Message from Android device #10
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