From: Sergey <tsv.devel@gmail.com>
To: xen-devel@lists.xensource.com
Subject: [PVUSB] usbbusname is changing after rebooting
Date: Mon, 18 May 2009 19:35:34 +0400 [thread overview]
Message-ID: <4A118046.5020600@gmail.com> (raw)
Hello, all!
Hello, Noboru!
Hotplug rule for PVUSB consists of
<usbbusname>:<domid>:<vusb number>:<port number>
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.
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next reply other threads:[~2009-05-18 15:35 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2009-05-18 15:35 Sergey [this message]
2009-05-19 2:04 ` [PVUSB] usbbusname is changing after rebooting Noboru Iwamatsu
2009-09-04 17:17 ` Neobiker
2009-09-07 9:20 ` Sergey Tovpeko
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