Files
epics-base/src/vxWorks/drv/old

The following are unbundled

drvBB232.c
drvBB232.h
drvBitBus.c
drvBitBus.h
drvBitBusErr.h
drvBitBusInterface.h
drvMsg.h
drvMsg.c
drvRs232.h

The following should not be used

drvTy232.h
drvRs232.c


The following is a BIG PROBLEM because drvGpib.c include and uses it.
For now it is both here are in the unbundled version

drvBitBusInterface.h