From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1FNM7O-0001fK-Fw for qemu-devel@nongnu.org; Sat, 25 Mar 2006 22:40:42 -0500 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1FNM7M-0001f8-I4 for qemu-devel@nongnu.org; Sat, 25 Mar 2006 22:40:41 -0500 Received: from [199.232.76.173] (helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1FNM7M-0001f5-87 for qemu-devel@nongnu.org; Sat, 25 Mar 2006 22:40:40 -0500 Received: from [24.93.47.40] (helo=ms-smtp-01.texas.rr.com) by monty-python.gnu.org with esmtp (Exim 4.52) id 1FNM8Y-0007Op-59 for qemu-devel@nongnu.org; Sat, 25 Mar 2006 22:41:54 -0500 Received: from [192.168.0.11] (cpe-67-9-160-120.austin.res.rr.com [67.9.160.120]) by ms-smtp-01.texas.rr.com (8.13.4/8.13.4) with ESMTP id k2Q3ebR4012935 for ; Sat, 25 Mar 2006 21:40:38 -0600 (CST) Message-ID: <44260D35.4050402@austin.rr.com> Date: Sat, 25 Mar 2006 21:40:37 -0600 From: Lonnie Mendez MIME-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: [Qemu-devel] [patch][usb] another hub fix Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Hello list. The bsd uhub driver has helped to uncover a bug in the hub layer: usb_20 (11.24.2.7.2.2) usb11 (11.16.2.6.2.2): {C_PORT_ENABLE} This bit is set when the PORT_ENABLE bit changes from one to zero as a result of a Port Error condition ... This bit is not set on any other changes to PORT_ENABLE. During a port reset condition the C_PORT_ENABLE bit is being set. The spec however indicates this should only be set in an error condition. The linked patch fixes this and resolves the "illegal enable change" message from the uhub driver on bsd guests. http://gnome.dnsalias.net/patches/qemu-uhub-CPEfix.patch