From mboxrd@z Thu Jan 1 00:00:00 1970 From: Oliver Neukum Subject: Re: [PATCH] USB host CDC Phonet network interface driver Date: Fri, 24 Jul 2009 14:01:19 +0200 Message-ID: <200907241401.20262.oliver@neukum.org> References: <1248177515-12712-1-git-send-email-remi.denis-courmont@nokia.com> <20090722101102.4aba96bd@lxorguk.ukuu.org.uk> <1248254134.28545.111.camel@violet> Mime-Version: 1.0 Content-Type: text/plain; charset="iso-8859-15" Content-Transfer-Encoding: 7bit Cc: Alan Cox , " =?iso-8859-15?q?R=E9mi?= Denis-Courmont" , ext Dan Williams , "netdev@vger.kernel.org" , "linux-usb@vger.kernel.org" To: Marcel Holtmann Return-path: Received: from smtp-out002.kontent.com ([81.88.40.216]:58226 "EHLO smtp-out002.kontent.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751110AbZGXMA5 (ORCPT ); Fri, 24 Jul 2009 08:00:57 -0400 In-Reply-To: <1248254134.28545.111.camel@violet> Content-Disposition: inline Sender: netdev-owner@vger.kernel.org List-ID: Am Mittwoch, 22. Juli 2009 11:15:34 schrieb Marcel Holtmann: > > > The AT stuff is really problematic. Look at the hoops ISDN and software > > > modem drivers go through to emulate AT commands. I know even of a > > > CDC-ACM modem which can't deal with AT commands inline (that's within > > > spec). It seems to me we should have a modem API in kernel. > > > > For devices which don't deal in AT commands probably but for devices > > whose firmware provides an AT command interface over serial I would > > disagree. > > I fully agree here. Even if you think you get AT commands under control, > you really won't in the end. That standard is so wildly mis-interpreted > that it is not even funny anymore. For these devices we could at least separate the data channel from the control channel. Regards Oliver