From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from [140.186.70.92] (port=58995 helo=eggs.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1PLmKo-0006G8-Pd for qemu-devel@nongnu.org; Thu, 25 Nov 2010 19:38:43 -0500 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1PLmKn-0004xo-Tc for qemu-devel@nongnu.org; Thu, 25 Nov 2010 19:38:42 -0500 Received: from mail.codesourcery.com ([38.113.113.100]:47041) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1PLmKn-0004xc-KM for qemu-devel@nongnu.org; Thu, 25 Nov 2010 19:38:41 -0500 From: Paul Brook Subject: Re: [Qemu-devel] [patch 0/2] USB UHCI global suspend / remote wakeup Date: Fri, 26 Nov 2010 00:38:28 +0000 References: <20101125170439.548474575@redhat.com> In-Reply-To: <20101125170439.548474575@redhat.com> MIME-Version: 1.0 Content-Type: Text/Plain; charset="iso-8859-15" Content-Transfer-Encoding: 7bit Message-Id: <201011260038.29290.paul@codesourcery.com> List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Cc: Matthew Garrett , kvm , Marcelo Tosatti , Glauber de Oliveira Costa , Adam Jackson , Gerd Hoffmann > This patch enables USB UHCI global suspend/resume feature. The OS will > stop the HC once all ports are suspended. If there is activity on the > port(s), an interrupt signalling remote wakeup will be triggered. I'm pretty sure this is wrong. Suspend/resume works based on physical topology, i.e. the resume notification should go to the the port/hub to which the device is connected, not directly to the host controller. Paul