Return-path: Received: from smtp-out003.kontent.com ([81.88.40.217]:56447 "EHLO smtp-out003.kontent.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757213AbZKDQjL convert rfc822-to-8bit (ORCPT ); Wed, 4 Nov 2009 11:39:11 -0500 From: Oliver Neukum To: Alan Stern Subject: Re: [PATCH] ar9170usb: add mode-switching for AVM Fritz!WLAN USB N devices in cdrom mode Date: Wed, 4 Nov 2009 17:41:31 +0100 Cc: Frank Schaefer , USB list , linux-wireless@vger.kernel.org References: In-Reply-To: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Message-Id: <200911041741.32128.oliver@neukum.org> Sender: linux-wireless-owner@vger.kernel.org List-ID: Am Mittwoch, 4. November 2009 17:16:18 schrieb Alan Stern: > The only exception would be the case that Oliver is worried about, > where a device loses its mode setting during a reset or system sleep. ? > In principle the kernel could put it back in the correct mode while > keeping the device's identity intact (although the code to do this > would be extremely ugly, and convincing people to allow it would be Oh yes. > hard). ?Even then, I don't see how existing serial/phone connections > could be maintained across a reset, so there might not be any point. I am afraid this will spread beyond modems. For now I'd like those devices which are affected by resets to get a quirk that marks them as not resettable for purposes of error handling. But I fear we may have to face this system in the future on a regular basis. Regards Oliver