HID Manager Queue

Hi,

 

I have set up a queue using IOHIDQueueInterface.  I have added an element using addElement() and started my queue.  I am using getNextEvent() to receive data. 

 

I am getting the correct data except when the data bytes that were sent are the same as the previous data bytes sent.  In other words if the HID device sent 10 interrupt transfers in a row of 0x00000000, only 1 of the 10 transfers would be in the queue.  I believe that the HID Manager is not seeing a difference and rightly so not putting it in the queue.  This would be the case for a mouse axis or buttons.  Unfortunately, this is not my case.  I need the data changed or not.  Is there any way that the IOHIDQueueInterface can be told to collect all data changed or not?  Any suggestions if not?

 

Thanks,

 

Lou