From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1757726Ab0BDLps (ORCPT ); Thu, 4 Feb 2010 06:45:48 -0500 Received: from smtp.witbe.net ([81.88.96.48]:33070 "EHLO smtp.witbe.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1757163Ab0BDLpr (ORCPT ); Thu, 4 Feb 2010 06:45:47 -0500 Date: Thu, 4 Feb 2010 12:45:44 +0100 From: Paul Rolland To: Oliver Neukum Cc: LKML , linux-usb@vger.kernel.org, rol@as2917.net Subject: Re: usbserial speed limitations ? Message-ID: <20100204124544.7e29ea3f@tux.DEF.witbe.net> In-Reply-To: <201002041226.21379.oliver@neukum.org> References: <20100204095855.10993d1a@tux.DEF.witbe.net> <201002041226.21379.oliver@neukum.org> Organization: AS2917.net X-Mailer: Claws Mail 3.7.5 (GTK+ 2.16.6; x86_64-unknown-linux-gnu) Face: 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 Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Hi Oliver, On Thu, 4 Feb 2010 12:26:21 +0100 Oliver Neukum wrote: > Am Donnerstag, 4. Februar 2010 09:58:55 schrieb Paul Rolland: > > "Maximum connection speed is limited by the current generic usbserial > > driver to approximately less than 500kbps." > > > > Is there really such a speed limitation in the usbserial module/driver ? > > This modem is HSPA+, which should allow a theorical maximum downspeed of > > 20MBps, not 500kbps... > > In the generic usbserial driver this speed limit indeed exists. > But you are not supposed to use it with that kind of device. > Most likely the correct driver would be either option or sierra. > Please post lsusb -v for your device. I don't have yet the device, but the informations I have so far are : - It is Vendor ID 0x1410, product ID 0x5023 when connected for the first time, and then it is a disk device. - Ejecting it makes it appear as Vendor ID 0x1410, product ID 0x7030 Novatel also refers to their procedure for the linux installation : (http://www.nvtl.com/index.php?option=com_content&view=article&id=139&Itemid=305 which has a link to http://www.nvtl.com/index.php?option=com_content&view=article&id=176&Itemid=331) This applies to Ovation MC930D and Ovation MC950D, which are supported by option.c So, I suspect the best would be to add the 0x7030 Product ID in the option driver, and git it a shoot... Regards, Paul