unused information elements

[malinko at malinko.adsl.dk]

Hi

I would like to use some of the unused space available in the information
elements part when transmitting 802.11 management frame. 

I have been looking at the source code of the HostAP driver to find where tx
frames fill out the information element part - with no succes. Is this filled
out by firmware or software ?

Can somebody maybe give me a hint where to look ?   

Best regards,
Martin