default.txt and default-annotated.pdf contain the extracted usb data when sending the default settings. This was obtained by exporting packet dissections as plain text from wireshark (select only bytes) and running ``grep "00[4-9]0"`` on the exported files.
The function of each button is described by 4 bytes. In case of the fire button all 4 bytes are used, in all other cases the last byte is 0x00. Look at ``set_key_mapping()`` (setters.cpp) and constructor.cpp for the meaning of these bytes.