Re: Reading the RSSI from a Kernel Module

[Richard Farina <sidhayn@gmail.com>]

Tim Schneider wrote:
> 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 don't mean to make this a flame so please do not take it that way.  
How exactly do you expect to get the RECEIVED Signal Strength indication 
for a packet which you are SENDING? If you send it, you don't receive it...

Just my 0.02

-Rick Farina
> 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
>
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