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BeginIO -- initiate asynchronous device I/O
BeginIO(ioReq)
VOID BeginIO(struct IORequest *);
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.
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).
exec.library/DoIO(), exec.library/SendIO(), exec.library/WaitIO()
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