From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:44936) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1daeGG-0001p7-Qk for qemu-devel@nongnu.org; Thu, 27 Jul 2017 04:35:13 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1daeGC-0002KE-Vy for qemu-devel@nongnu.org; Thu, 27 Jul 2017 04:35:12 -0400 Received: from indium.canonical.com ([91.189.90.7]:36856) by eggs.gnu.org with esmtps (TLS1.0:RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1daeGC-0002Ir-PX for qemu-devel@nongnu.org; Thu, 27 Jul 2017 04:35:08 -0400 Received: from loganberry.canonical.com ([91.189.90.37]) by indium.canonical.com with esmtp (Exim 4.76 #1 (Debian)) id 1daeGB-0002vr-Vp for ; Thu, 27 Jul 2017 08:35:08 +0000 Received: from loganberry.canonical.com (localhost [127.0.0.1]) by loganberry.canonical.com (Postfix) with ESMTP id EBF222E80CC for ; Thu, 27 Jul 2017 08:35:07 +0000 (UTC) MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: quoted-printable Date: Thu, 27 Jul 2017 08:22:12 -0000 From: Gerd Hoffmann <1096714@bugs.launchpad.net> Reply-To: Bug 1096714 <1096714@bugs.launchpad.net> Sender: bounces@canonical.com References: <20130107012337.1165.80927.malonedeb@gac.canonical.com> Message-Id: <150114373233.31693.11556062340537331908.malone@gac.canonical.com> Errors-To: bounces@canonical.com Subject: [Qemu-devel] [Bug 1096714] Re: qemu 1.3.0: usb devices shouldn't have same vendor/product ID and same serial List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Try "-device usb-tablet,serial=3D1234" -- = You received this bug notification because you are a member of qemu- devel-ml, which is subscribed to QEMU. https://bugs.launchpad.net/bugs/1096714 Title: qemu 1.3.0: usb devices shouldn't have same vendor/product ID and same serial Status in QEMU: New Bug description: Boot Windows XP with ./qemu-system-i386 -device pci-ohci -device usb-tablet and then with ./qemu-system-i386 -device pci-ohci -device usb-kbd and you will notice, that the usb keyboard is not detected. In fact, Windows XP detects the usb tablet and loads the driver for the tablet instead of the driver for the keyboard. The problem seems to be, that vendor and product ID and even the seriel of both the usb tablet and the usb keyboard are the same as an lsusb reveiles. Hence, Windows XP doesn't detect when you replace the tablet by a keyboard and vice versa. I didn't check other USB devices, but it seems a bad idea to me to have devices with the same vendor/product Id. I'm not aware, whether it is sufficient to change the seriel numbers of the devices. To manage notifications about this bug go to: https://bugs.launchpad.net/qemu/+bug/1096714/+subscriptions