From mboxrd@z Thu Jan 1 00:00:00 1970 Return-path: Received: from mail-iy0-f174.google.com ([209.85.210.174]:36203 "EHLO mail-iy0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751084Ab2HWQbI (ORCPT ); Thu, 23 Aug 2012 12:31:08 -0400 Received: by ialo24 with SMTP id o24so1589778ial.19 for ; Thu, 23 Aug 2012 09:31:08 -0700 (PDT) Message-ID: <50365AC8.7030503@lwfinger.net> (sfid-20120823_183113_339794_205C7750) Date: Thu, 23 Aug 2012 11:31:04 -0500 From: Larry Finger MIME-Version: 1.0 To: Patrick Connolly CC: linux-wireless@vger.kernel.org Subject: Re: Question about ath9k/mac80211 Driver References: In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Sender: linux-wireless-owner@vger.kernel.org List-ID: On 08/23/2012 11:19 AM, Patrick Connolly wrote: > Mohammed, > Thanks very much for the response. > > Yes I get "Operation not supported": > > # iwconfig wlan0 modu 11b > Error for wireless request "Set Modulation" (8B2F) : > SET failed on device wlan0 ; Operation not supported. > > ...so what does this mean; what are my options here? In view of > the fact that the capability of changing modes (from 'g' to 'b' > ...etc.) is an essential requirement, am I using the wrong driver > ...is there a different driver that supports this chip? Or is it that > there's no driver that supports this chip so that I would have to put > this functionality into ath9k myself if I want it? Adding that functionality should not be necessary. The simple command iw dev $WIFIDEV set bitrates legacy-2.4 1 2 5.5 11 will restrict the device to 802.11b rates, which I think is what you want. This command does not involve the device driver, but sets the appropriate parameters in mac80211. Larry