Re: 2.6.31-rc3: replugging USB serial converter uses new device node

[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

 



(cc linux-usb)

On Sat, 18 Jul 2009 22:04:57 +0200 Ferenc Wagner <wferi@xxxxxxx> 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:
> 
> ==poff==
> UEVENT[1247946169.580772] remove   /devices/virtual/net/ppp0 (net)
> UDEV  [1247946169.589775] remove   /devices/virtual/net/ppp0 (net)
> ==unplug==
> UEVENT[1247946186.700698] remove   /devices/pci0000:00/0000:00:1d.1/usb3/3-1/3-1:1.0/ttyUSB2/tty/ttyUSB2 (tty)
> UEVENT[1247946186.700737] remove   /devices/pci0000:00/0000:00:1d.1/usb3/3-1/3-1:1.0/ttyUSB2 (usb-serial)
> UEVENT[1247946186.700749] remove   /devices/pci0000:00/0000:00:1d.1/usb3/3-1/3-1:1.0 (usb)
> UEVENT[1247946186.700760] remove   /devices/pci0000:00/0000:00:1d.1/usb3/3-1/usb_device/usbdev3.6 (usb_device)
> UEVENT[1247946186.700771] remove   /devices/pci0000:00/0000:00:1d.1/usb3/3-1 (usb)
> UDEV  [1247946186.701535] remove   /devices/pci0000:00/0000:00:1d.1/usb3/3-1/3-1:1.0/ttyUSB2/tty/ttyUSB2 (tty)
> UDEV  [1247946186.705822] remove   /devices/pci0000:00/0000:00:1d.1/usb3/3-1/3-1:1.0/ttyUSB2 (usb-serial)
> UDEV  [1247946186.711662] remove   /devices/pci0000:00/0000:00:1d.1/usb3/3-1/3-1:1.0 (usb)
> UDEV  [1247946186.715237] remove   /devices/pci0000:00/0000:00:1d.1/usb3/3-1/usb_device/usbdev3.6 (usb_device)
> UDEV  [1247946186.718872] remove   /devices/pci0000:00/0000:00:1d.1/usb3/3-1 (usb)
> ==replug==
> UEVENT[1247946199.654628] add      /devices/pci0000:00/0000:00:1d.1/usb3/3-1 (usb)
> UDEV  [1247946199.660946] add      /devices/pci0000:00/0000:00:1d.1/usb3/3-1 (usb)
> UEVENT[1247946199.661096] add      /devices/pci0000:00/0000:00:1d.1/usb3/3-1/3-1:1.0 (usb)
> UEVENT[1247946199.688206] add      /devices/pci0000:00/0000:00:1d.1/usb3/3-1/3-1:1.0/ttyUSB3 (usb-serial)
> UEVENT[1247946199.688254] add      /devices/pci0000:00/0000:00:1d.1/usb3/3-1/3-1:1.0/ttyUSB3/tty/ttyUSB3 (tty)
> UEVENT[1247946199.688266] add      /devices/pci0000:00/0000:00:1d.1/usb3/3-1/usb_device/usbdev3.7 (usb_device)
> UDEV  [1247946199.710642] add      /devices/pci0000:00/0000:00:1d.1/usb3/3-1/3-1:1.0 (usb)
> UDEV  [1247946199.713898] add      /devices/pci0000:00/0000:00:1d.1/usb3/3-1/3-1:1.0/ttyUSB3 (usb-serial)
> UDEV  [1247946199.729618] add      /devices/pci0000:00/0000:00:1d.1/usb3/3-1/usb_device/usbdev3.7 (usb_device)
> UDEV  [1247946199.739566] add      /devices/pci0000:00/0000:00:1d.1/usb3/3-1/3-1:1.0/ttyUSB3/tty/ttyUSB3 (tty)
> ==pon==
> UEVENT[1247946268.571857] add      /devices/virtual/net/ppp0 (net)
> UDEV  [1247946268.593127] add      /devices/virtual/net/ppp0 (net)
> 
> Dmesg is available at http://pastebin.com/d516e3e00.

Can anyone say whether this is expected behaviour?

Does it actually cause any observeable problems?  I expect things will
get ugly once it runs out of range.

--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at  http://vger.kernel.org/majordomo-info.html

[Index of Archives]     [Linux Media]     [Linux Input]     [Linux Audio Users]     [Yosemite News]     [Linux Kernel]     [Linux SCSI]     [Old Linux USB Devel Archive]

  Powered by Linux