Message-Id: <0D620DB9-0DF4-41BB-8686-5BC910F88C79@cs.uni-bonn.de>
From: Tim Schneider <schneid5@cs.uni-bonn.de>
To: Linux-wireless <linux-wireless@vger.kernel.org>
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Subject: Reading the RSSI from a Kernel Module
Date: Mon, 13 Jul 2009 08:32:23 +0200
Sender: linux-wireless-owner@vger.kernel.org

Hi,

I am trying to write a Kernel Module with an implementation of a new  
TCP-Algorithm. Since I need to know the RSSI-Value (Received Signal  
Strength indication) of the sent package, I extended the Pluggable  
Congestion Control Mechanism by a new function which is called right  
after the package is send. At that point, I need to read the RSSI-Value.

I'm now trying to somehow access that value, but I can't figure out  
how. I've come as far, that I found out about the Wirelless  
Extensions, which seem to be very promising. In the header file the  
author states, that this mechanism can be used by both user-space apps  
and kernel modules. Unfortunately nobody seems to ever have used it in  
kernel space, since I can't find any documentations about it. I've  
already asked this question on the netdev mailing list. They told me,  
that there is a new system  with a netlink based cfg80211/nl80211  
interface in development right now , which is supposed to replace the  
wireless extensions in the future. They also told me, that this would  
probably be the correct mailing list for this kind of question.

I would be very glad, if somebody could give me link to a page  
containing informations about this topic, or even just a hint that  
could help me.

Thank you

Tim Schneider