Return-path: Received: from mail-iw0-f178.google.com ([209.85.223.178]:54447 "EHLO mail-iw0-f178.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751197AbZIYQvd (ORCPT ); Fri, 25 Sep 2009 12:51:33 -0400 Received: by iwn8 with SMTP id 8so1690188iwn.33 for ; Fri, 25 Sep 2009 09:51:37 -0700 (PDT) MIME-Version: 1.0 In-Reply-To: <200909251132.18546.malte.gell@gmx.de> References: <200909242155.19485.malte.gell@gmx.de> <4ABBE5DB.5070201@gmx.de> <200909251132.18546.malte.gell@gmx.de> From: "Luis R. Rodriguez" Date: Fri, 25 Sep 2009 09:51:17 -0700 Message-ID: <43e72e890909250951u15555d04t1e3bcb14c77788b4@mail.gmail.com> Subject: Re: ar9170 makes machine hang when shut down To: Malte Gell Cc: linux-wireless@vger.kernel.org Content-Type: text/plain; charset=UTF-8 Sender: linux-wireless-owner@vger.kernel.org List-ID: On Fri, Sep 25, 2009 at 2:32 AM, Malte Gell wrote: > > Joerg Albert wrote > >> > Does it make sense to use "rmmod --force ar9170" to force removing that >> > module before shutting down? >> >> Why are you sure that the hang is caused by the ar9170 driver? > > You are right.... I thought this way, because my machine never hung and after > installing the USB stick it hang... But, I noticed when i disable ISDN > subsystem, it did not hang, so maybe it is the ISDN subsystem, I will try > further. > >> The vendor driver is called arusb_lnx, the new one ar9170usb > > Vendor driver? Does this mean, Atheros made a driver on its own? Are there > several drivers for the same chip now? Atheros wrote a vendor driver called otus for ar9170 devices, this was prior to the change of focus on working upstream. Atheros then released code and gave specs, etc to a community developer who wrote a proper mac80211 driver for ar9170. The main focus for development today is ar9170. I believe ar9170 does not yet have AMPDU aggregation enabled by default so otus is still available including the stock kernel under drivers/staging area until ar9170 matches all features provided by otus, Read each drivers's wiki page, the section regarding ar9170 and 11n support is very outdated, I know Chris has worked hard on this area. http://wireless.kernel.org/en/users/Drivers/otus http://wireless.kernel.org/en/users/Drivers/ar9170 I have a feeling not enough people know about the wireless wiki... Luis