From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Andrew Bird (Sphere Systems)" Subject: Re: [PATCH] USB CDC-Ether - Add ZTE WWAN matches before generic Ethernet Date: Sat, 19 May 2012 18:42:38 +0100 Message-ID: <201205191842.38567.ajb@spheresystems.co.uk> References: <1337435767-9544-1-git-send-email-ajb@spheresystems.co.uk> <87aa14jcyi.fsf@nemi.mork.no> Mime-Version: 1.0 Content-Type: Text/Plain; charset=utf-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: oliver@neukum.name, gregkh@linuxfoundation.org, linux-usb@vger.kernel.org, netdev@vger.kernel.org, linux-kernel@vger.kernel.org To: =?utf-8?q?Bj=C3=B8rn_Mork?= Return-path: Received: from queue01.mail.zen.net.uk ([212.23.3.234]:38023 "EHLO queue01.mail.zen.net.uk" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755607Ab2ESRnr convert rfc822-to-8bit (ORCPT ); Sat, 19 May 2012 13:43:47 -0400 In-Reply-To: <87aa14jcyi.fsf@nemi.mork.no> Sender: netdev-owner@vger.kernel.org List-ID: On Saturday 19 May 2012, Bj=C3=B8rn Mork wrote: > Andrew Bird writes: > > Some ZTE WWAN devices have generic CDC Ether descriptors. Add those > > into the whitelist so that we get FLAG_WWAN on the interface >=20 > Are you sure none of these export QMI via the CDC Ether control > interface? Or are they not Qualcomm devices at all? >=20 > As usual, if you see a spurious "CDC: unexpected notification 01" log= ged > from cdc_ether, then there is reason to examine those closer. If you > don't see any such messages, then there isn't any QMI there. >=20 >=20 > Bj=C3=B8rn Hi Bj=C3=B8rn, No these are devices that use the Icera chipset. They have cdc-acm ser= ial=20 ports and firmware has implemented AT commands for (de)activating the p= seudo=20 Ethernet and getting IP + DNS values etc. Actually applying this patch = will=20 provide little in terms of operation except to make the interface name = wwan%d=20 unstead of usb%d and to flag the interface such that Network Manager do= es not=20 try to bring it up via DHCP as soon as it appears, like it would with a= fixed=20 Ethernet interface. Good tip about the 'unexpected notification 01' I'll look out for that! Andrew