From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:46787) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Sd3nK-00022g-Tz for qemu-devel@nongnu.org; Fri, 08 Jun 2012 14:20:24 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1Sd3nE-0002Aq-Vc for qemu-devel@nongnu.org; Fri, 08 Jun 2012 14:20:22 -0400 Received: from mx1.redhat.com ([209.132.183.28]:52091) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1Sd3nE-000297-Mt for qemu-devel@nongnu.org; Fri, 08 Jun 2012 14:20:16 -0400 Message-ID: <4FD2426D.3080607@redhat.com> Date: Fri, 08 Jun 2012 20:20:29 +0200 From: Hans de Goede MIME-Version: 1.0 References: <4FD22966.7020307@rdsoftware.de> In-Reply-To: <4FD22966.7020307@rdsoftware.de> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] USB Hostport Differences List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Erik Rull Cc: "qemu-devel@nongnu.org" , Gerd Hoffmann Hi, On 06/08/2012 06:33 PM, Erik Rull wrote: > Hi all, > > when assigning USB host devices to a guest using the hostport option, there seem to be different formats, when calling info usbhost: > > - On my vanilla kernel linux there is a hostport format e.g. "1.5" or "1.2" > - On my Debian 6.0 full blown linux there is a hostport format "2" or "4", that means, there are no dots and only one number > Hmm, is this on the same machine, with the usb devices hooked up the same way? Normally these differences come from there being hubs in the chain, ie "2" or "4" indicate devices plugged directly into a root hub, "1.5" and "1.2" mean devices plugged into a hub, which itself is plugged into root port "1" Regards, Hans