From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1756562AbcKWN3T (ORCPT ); Wed, 23 Nov 2016 08:29:19 -0500 Received: from smtprelay01.ispgateway.de ([80.67.31.24]:44902 "EHLO smtprelay01.ispgateway.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755562AbcKWN3R (ORCPT ); Wed, 23 Nov 2016 08:29:17 -0500 X-Greylist: delayed 836 seconds by postgrey-1.27 at vger.kernel.org; Wed, 23 Nov 2016 08:29:17 EST From: "Wolfgang Wilhelm" Organization: FAST ComTec To: Greg KH Date: Wed, 23 Nov 2016 14:14:23 +0100 MIME-Version: 1.0 Subject: Problem with USB driver using two devices CC: stable@vger.kernel.org, Austin S Hemmelgarn , linux-kernel@vger.kernel.org Message-ID: <5835962F.20615.B8710F6@wilhelm.fastcomtec.com> In-reply-to: <20150918162348.GB19362@kroah.com> References: <55FABF0F.5831.182EDC5@wilhelm.fastcomtec.com>, <55FBD835.18717.A6454E@wilhelm.fastcomtec.com>, <20150918162348.GB19362@kroah.com> X-mailer: Pegasus Mail for Windows (4.51, DE v4.51 R1) Content-type: text/plain; charset=US-ASCII Content-transfer-encoding: 7BIT Content-description: Mail message body X-Df-Sender: NTU0NTQ1 Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Dear Sir, we are a small company FAST ComTec GmbH (www.fastcomtec.com) and produce multichannel analyzers with Windows software. I am the software developer and would like to get our software working also under Linux with the help of WINE. I was already successfull with our USB devices and most of our PCI cards, but now we have found that our USB driver does not work with the second device if more than one USB device is connected. The "read" function does not work with the second device, all other functions work. (tested with Debian v 8, kernel 3.16.0) The driver is based on a skeleton source provided by you. The driver source can be downloaded here: https://www.fastcomtec.com/ftp/usb1mcs6.zip Please could you have a look on it if you can see an error? Or do you think it could be an error in the Linux kernel? With best regards, Wolfgang Wilhelm ----- Dr. Wolfgang Wilhelm, FAST ComTec GmbH Gruenwalder Weg 28a, 82041 Oberhaching, Germany Phone +49 89 665180 28, Fax +49 89 665180 40 mailto:wilhelm@fastcomtec.com http://www.fastcomtec.com Handelsregister Muenchen HRB 73004 General Manager: Dr. Wolfgang Wagner