Messages in this thread | | | Date | Thu, 23 Jul 2009 10:44:13 -0400 (EDT) | From | Alan Stern <> | Subject | Re: 2.6.31-rc3: replugging USB serial converter uses new device node |
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On Thu, 23 Jul 2009, Andrew Morton wrote:
> (cc linux-usb) > > On Sat, 18 Jul 2009 22:04:57 +0200 Ferenc Wagner <wferi@niif.hu> wrote: > > > Hi, > > > > Since upgrading to 2.6.31-rc3 from 2.6.30, my ttyUSB device number > > keeps increasing on each replug. Output of udevadm monitor: ... > > Dmesg is available at http://pastebin.com/d516e3e00. > > Can anyone say whether this is expected behaviour?
It depends on whether a program is still holding the old device file open when the replug occurs.
> Does it actually cause any observeable problems? I expect things will > get ugly once it runs out of range.
The numbers will get reused after the corresponding device files are closed.
For further discussion, see this thread:
http://marc.info/?t=124828810800002&r=1&w=2
Alan Stern
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