The final cxobject is the debug cxobject.  when a debug cxobject receives
a cxmessage, it sends debugging information to the serial port using
kprintf().

    debugCxObj  = CxObj  *CxDebug(LONG ID);

The debug cxobject will kprintf() the following information about itself,
the cxmsg, and the corresponding inputevent structure:

    DEBUG NODE: 7CB5AB0, ID: 2
     CxMsg: 7CA6EF2, type: 0, data 2007CA destination 6F1E07CB
    dump IE: 7CA6F1E
     Class 1
     Code 40
     Qualifier 8000
     EventAddress 40001802

There has to be a terminal connected to the Amiga's serial port to receive
this information.  See the kprintf() autodoc (debug.lib) for more details.
Note that the debug cxobject did not work before v37.