From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-iw0-f180.google.com ([209.85.223.180]:46055 "EHLO mail-iw0-f180.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754799AbZKBTek (ORCPT ); Mon, 2 Nov 2009 14:34:40 -0500 Received: by iwn10 with SMTP id 10so3567793iwn.4 for ; Mon, 02 Nov 2009 11:34:44 -0800 (PST) MIME-Version: 1.0 In-Reply-To: <44491.72003.qm@web57906.mail.re3.yahoo.com> References: <43e72e890911020945n7590b287je116d50561095980@mail.gmail.com> <44491.72003.qm@web57906.mail.re3.yahoo.com> From: "Luis R. Rodriguez" Date: Mon, 2 Nov 2009 11:34:23 -0800 Message-ID: <43e72e890911021134s91ae1bbw49cabfb970f82fc6@mail.gmail.com> Subject: Re: May I join ath9k_htc update 2009-10-28 To: hong zhang Cc: Christian Lamparter , devel@linuxdriverproject.org, linux-wireless , Stephen Chen Content-Type: text/plain; charset=UTF-8 Sender: linux-wireless-owner@vger.kernel.org List-ID: On Mon, Nov 2, 2009 at 11:26 AM, hong zhang wrote: > TL-WN721N is not 11n complied. Huh? TL-WN721N should be ar9271 hardware. All ar9271 devices are single stream devices which means the highest MCS rate is MCS 7. I forget but I believe 11n wifi cert accepts single stream devices now. > TL-WN821N complies with 11n. As per Christian it seems this is an ar9170 device, which is dual stream and using the older Atheros hardware. It certainly has capacity to TX/RX more but remember that it is more expensive too. Single stream devices bring 802.11n hardware price down to a competitive level and kill 802.11g :) Luis