I managed to communicate via OTG serial with Arduino MEGA but not with UNO or Teensy...
Is it possible to ask for device_filter.xml to be edited and augmented with more IDs?
thanks 
<?xml version="1.0" encoding="utf-8"?>
<!-- 0x10C4 / 0xEA??: Silabs CP210x -->
<usb-device vendor-id="4292" product-id="60000" /> <!-- 0xea60: CP2102 -->
<usb-device vendor-id="4292" product-id="60016" /> <!-- 0xea70: CP2105 -->
<usb-device vendor-id="4292" product-id="60017" /> <!-- 0xea71: CP2108 -->
<usb-device vendor-id="4292" product-id="60032" /> <!-- 0xea80: CP2110 -->
<!-- 0x067B / 0x2303: Prolific PL2303 -->
<usb-device vendor-id="1659" product-id="8963" />
<!-- 0x1a86 / 0x?523: Qinheng CH34x -->
<usb-device vendor-id="6790" product-id="21795" /> <!-- 0x5523: CH341A -->
<usb-device vendor-id="6790" product-id="29987" /> <!-- 0x7523: CH340 -->
<!-- CDC driver -->
<usb-device vendor-id="9025" /> <!-- 0x2341 / ......: Arduino -->
<usb-device vendor-id="1027" product-id="24577"/> <!-- 0x0403 / 0x6001....: Arduino NANO -->
<usb-device vendor-id="5824" product-id="1155" /> <!-- 0x16C0 / 0x0483: Teensyduino -->
<usb-device vendor-id="1003" product-id="8260" /> <!-- 0x03EB / 0x2044: Atmel Lufa -->
<usb-device vendor-id="7855" product-id="4" /> <!-- 0x1eaf / 0x0004: Leaflabs Maple -->
<usb-device vendor-id="3368" product-id="516" /> <!-- 0x0d28 / 0x0204: ARM mbed -->