I have not updated the device file for a long time. Did not expect that the file is still maintained. Mine is 2.8.94 I actually can find entries for 2644. The device has a label rev 6.6 1118 or 111B. Does this revision correspond to firmware? My xml file shows 0xD5 as the latest firmware. Not sure if I need to manually update the file or if I have some communication issue?