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ReadPipeAsync revisited.


Hi guys,

So, I have finally gotten round to implementing a fix for a 0xe00002e8 in a call to ReadPipeAsync (mentioned in earlier emails). I have a question though.  The code used is as follows:

result = (*interface)->ReadPipeAsync(interface, 1, asynchRequest->rawDataBuffer,
sizeOfRequest, returnHandler, asynchRequest);

if(result != kIOReturnSuccess){
//Handle error.
}

The error is caught in the if block. Given that this is an async request, am I correct in assuming that the return from this function cannot know about errors generated during the actual obtaining of the data? So, if I re-send the request, can I trust that the device is still waiting to receive a read request? If this were a synchronous call, I would naturally assume that some error had occurred that would more than likely mean that I would loose the data, but in this case, it is not clear to me as the call above returns immediately.

Thanks for your help as always,

Robert.
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