From mboxrd@z Thu Jan 1 00:00:00 1970 From: Marcel Holtmann Subject: Re: Using Wireless Extensions in a Kernel Module Date: Fri, 10 Jul 2009 09:39:24 -0700 Message-ID: <1247243964.9709.71.camel@localhost.localdomain> References: Mime-Version: 1.0 Content-Type: text/plain Content-Transfer-Encoding: 7bit Cc: netdev , Johannes Berg To: Tim Schneider Return-path: Received: from senator.holtmann.net ([87.106.208.187]:53058 "EHLO mail.holtmann.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753725AbZGJQjU (ORCPT ); Fri, 10 Jul 2009 12:39:20 -0400 In-Reply-To: Sender: netdev-owner@vger.kernel.org List-ID: Hi Tim, > 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 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. we are in the process of killing Wireless Extensions (WEXT) and replacing it with a netlink based cfg80211/nl80211 interface. The better mailing list is linux-wireless@vger.kernel.org for such questions. Regards Marcel