Region : Austria

Model : TL-WN722N

Hardware Version : V1

Firmware Version :

ISP :

Hello,

I am currently writing a NDIS Filter Driver and wanted to dump Management Beacons.
In my Filter I get for every packet the ucDataRate from the Structure DOT11_EXTSTA_RECV_CONTEXT ( http://msdn.microsoft.com/en-us/library/windows/hardware/ff548626(v=vs.85).aspx )
The ucDataRate I receive is 0xE8.
According to the specification I need to lookup the value in the data rate mapping table to get the real data rate.
Unfortunately the Table has no Entry where the ucDataRateIndex == 0xE8.
Furthermore it seems like this value isn't valid at all, because Bit7 of the ucDataRateIndex must be zero ( http://msdn.microsoft.com/en-us/library/windows/hardware/ff547679(v=vs.85).aspx )
This is only happening on Windows 7 x64.

I also tried it on Windows 8.1 x64 and there the returned ucDataRate is fine. (ucDataRate == 0x02)

Is this a bug in the Windows 7 driver?

Thanks in advance!