NAME
    BeginIO -- initiate asynchronous device I/O

SYNOPSIS
    BeginIO(ioReq)

    VOID BeginIO(struct iorequest *);

FUNCTION
    This function takes an iorequest, and passes it directly to the
    "BeginIO" vector of the proper device.  This is equivalent to
    sendio(), except that io_flags is not cleared. a good understanding
    of Exec device I/O is required to properly use this function.

    This function does not wait for the I/O to complete.

INPUTS
    ioReq - an initialized and opened iorequest structure with the
            io_Flags field set to a reasonable value (set to 0 if you do
            not require io_Flags).

SEE ALSO
    exec.library/doio(), exec.library/sendio(), exec.library/waitio()