Hi,
I am writing a pcsc driver for a usb smartcard reader on Mac OS 10.1, which uses
asynchronous reads from its interrupt pipes.
So what I did was to take the example driver that is distributed with the pcsc
package, and in the OpenUSB() function I added the following code (after opening the
interface):
// Adding an async event source
CFRunLoopSourceRef runLoopSource;
kr = (*intFace)->CreateInterfaceAsyncEventSource(intFace, &runLoopSource);
CFRunLoopAddSource(CFRunLoopGetCurrent(), runLoopSource, kCFRunLoopDefaultMode);
kr = (*intFace)->ReadPipeAsync(intFace, pipeNum, myBuffer,
BUFFER_SIZE,
ReadCompletion,(void*)data);
The problem is that if I want the completion routine to be called at all I have to add
the command CFRunLoopRun() following the above code, which means that the OpenUSB()
function will never return... And not calling CFRunLoopRun() means that the async
callback will never be reached.
Is there a way to solve this problem?
Thanks in advance,
Amira.
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