From mboxrd@z Thu Jan  1 00:00:00 1970
Return-path: <linux-wireless-owner@vger.kernel.org>
Received: from mailout-de.gmx.net ([213.165.64.23]:32856 "HELO
	mailout-de.gmx.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org
	with SMTP id S1753290Ab2AGTmq (ORCPT
	<rfc822;linux-wireless@vger.kernel.org>);
	Sat, 7 Jan 2012 14:42:46 -0500
Content-Type: text/plain; charset=UTF-8
From: John Wyzer <john.wyzer@gmx.de>
To: linux-wireless <linux-wireless@vger.kernel.org>
Subject: HT40 not working for Intel 5100 AGN ?
Date: Sat, 07 Jan 2012 20:42:33 +0100
Message-Id: <1325965297-sup-3780@localhost> (sfid-20120107_204250_502483_56C12E73)
Sender: linux-wireless-owner@vger.kernel.org
List-ID: <linux-wireless.vger.kernel.org>

Kernel: git tag v3.2 

After modprobe:
Detected Intel(R) WiFi Link 5100 AGN, REV=0x54

If have an AP with openwrt configured to work with 802.11g+n, HT40+.
A different Laptop with Windows installed connects with 150Mb/s

The maximum bitrate for the aforementioned Intel card however is displayed by
iwconfig to be 54 Mb/s which seems to be confirmed by the actual transfer
rates.
The connection is being established by wpa_supplicant 0.7.3.

I tried researching this problem but did not really find it documented. Is this
a known issue or can I provide further information for debugging? 

Many thanks,
John

PS: please include me in the reply.