100644 blob d6d8fff84b58ce966dc0c29cbf9eebb5e710bfcb	DeviceNull.cpp
100644 blob 7a938224c5a7eb4b9c148c19aca19729004c8043	DeviceNull.h
100644 blob a48dcdccc4e9dbfca755a64123ea1204da6e0c32	NullBackend.cpp