I am sending data to a custom USB device and trying to read it's response. 
WritePipe() is successful, but when I go to ReadPipe(), the pipe stalls, 
causing my application to hang. I tried clearing both ends of the pipe, but 
still no luck.



IOUSBInterfaceInterface245  **interface;


Device is opened and the desired interface is found.

(*interface)->ClearPipeStallBothEnds( interface, 2 );
        
char        gBuffer[64];
UInt32      numBytesRead = sizeof(gBuffer);


Hangs on this function.

IOReturn    kernalReturn = (*interface)->ReadPipe( interface, 2, gBuffer, 
&numBytesRead );


      
_______________________________________________

Cocoa-dev mailing list (Cocoa-dev@lists.apple.com)

Please do not post admin requests or moderator comments to the list.
Contact the moderators at cocoa-dev-admins(at)lists.apple.com

Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com

This email sent to arch...@mail-archive.com

Reply via email to