Library /sys$common/syshlp/sysmanhelp.hlb IO, CONNECT, Qualifiers, /DRIVER_NAME  *Conan The Librarian (sorry for the slow response - running on an old VAX)

       /DRIVER_NAME=filespec

    Specifies the name of the device driver that you are loading.
    If you do not specify this qualifier, SYSMAN obtains the
    default in the same way that the SYSGEN default name is
    determined. For example, if you want to load the Compaq-supplied
    SYS$ELDRIVER.EXE, the prefix SYS$ must be present. Without the
    SYS$, SYSMAN looks for ELDRIVER.EXE in SYS$LOADABLE_IMAGES. This
    implementation separates the user device driver namespace from
    the Compaq-supplied device driver namespace.