NAME
    Open -- Request an opening of the network device.

SYNOPSIS
    error = OpenDevice(unit, IOSana2Req, flags)
    D0                 D0    A1          D1

    BYTE OpenDevice(ULONG, struct IOSana2Req *, ULONG);

FUNCTION
    This function is called by exec.library OpenDevice().

    This function performs whatever initialization is required per
    device open and initializes the Sana2Req for use by the
    device.

INPUTS
    unit            - Device unit to open.
    Sana2Req        - Pointer to IOSana2Req structure to be initialized by
                      the sana2.device.
    flags           - Supported flags are:
                            SANA2OPB_MINE
                            SANA2OPB_PROM
    ios2_BufferManagement   - A pointer to a tag list containing
                              pointers to buffer management functions.

RESULTS
    error           - same as io_Error
    io_Error        - Zero if successful; non-zero otherwise.
    io_Device       - A pointer to whatever device will handle the calls
                      for this unit.  This pointer may be different
                      depending on what unit is requested.
    ios2_BufferManagement   - A pointer to device internal information
                              used to call buffer management functions.

NOTES

SEE ALSO
    exec.library/OpenDevice(), exec.library/CloseDevice()

BUGS