From mboxrd@z Thu Jan 1 00:00:00 1970 From: Neobiker Subject: Re: [PVUSB] usbbusname is changing after rebooting Date: Fri, 4 Sep 2009 10:17:26 -0700 (PDT) Message-ID: <25298424.post@talk.nabble.com> References: <4A118046.5020600@gmail.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <4A118046.5020600@gmail.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org Hi Sergey, i thought i had trouble with that too, until i figured out that the USB-Bus only seemed to have changed, when i changed the connected Device e.g. from USB-Printer to USB-Stick. The Printer uses the UHCI Controller (3-1), versus the USB-Stick connected to the EHCI Controller (5-1). Besides this the USB ports are stable on my Debian Lenny System. So in my summary, the USB-Bus don't changes if you don't switch from UHCI to EHCI according to the connected device. regards Neobiker Sergey-53 wrote: > > Hello, all! > Hello, Noboru! > > Hotplug rule for PVUSB consists of > ::: > > I noticed that usbbusname sometimes changes from time to time after host > rebooting. > For example, yesterday i had it as "6-1", today it is "2-1". > > I saw the topic about usbbusname on replugging. > http://lists.xensource.com/archives/html/xen-devel/2009-04/msg00400.html > Replugging doesn't change the usbbusname, but what about host rebooting? > > I suppose, usb bus number is assigned during booting and may vary each > time. > To identify usb device correctly i have to see dmesg after rebooting. > It's quite inconvinient, imho. > > What do you think about another method of USB naming like > VendorId:ProductId of usb devices to be grabbed by domU? > It seems that HVM guests use this method by means of the parameter > 'usbdevice'. > > Thank you. > > Sergey. > > > -- > This message has been scanned for viruses and > dangerous content by MailScanner, and is > believed to be clean. > > > _______________________________________________ > Xen-devel mailing list > Xen-devel@lists.xensource.com > http://lists.xensource.com/xen-devel > > -- View this message in context: http://www.nabble.com/-PVUSB--usbbusname-is-changing-after-rebooting-tp23599966p25298424.html Sent from the Xen - Dev mailing list archive at Nabble.com.