Kudo's on the debugging. You cant use !IRP on a TRIAGED ARG. There are flags to force it but you are probably simply better off running verifier since it is a PNP driver. I would also updated the below old drivers
1-Driver verifier (for complete directions see our wiki here)
dwvkbd64.sys 4/11/2007 4:22:37 PM
dfmirage.sys 1/11/2008 4:04:26 PM
DamewareMini.sys 3/16/2008 1:42:28 PM
LVPr2M64.sys 4/30/2009 5:42:17 PM
!IRP FLAGS
https://msdn.microsoft.com/en-us/library/windows/hardware/ff548630%28v=vs.85%29.aspx
https://msdn.microsoft.com/en-us/library/windows/hardware/ff548597%28v=vs.85%29.aspx