[Bug 1495723] Re: Connecting USB devices failing

[Brian Murray]

** Package changed: ubuntu => udev (Ubuntu)

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Title:
  Connecting USB devices failing

Status in udev package in Ubuntu:
  New

Bug description:
  rob at DesktopUbuntu:~$ lsb_release -rd
  Description:	Ubuntu 14.04.3 LTS
  Release:	14.04

  Ubuntu Software Center 13.10  (XUbuntu)

  I have had a problem with connecting my phone as a memory/disk device
  on Ubuntu 14.04 and found the same with a live install of 15.04. I
  recently bought an expensive 3-D Robox-CEL printer and was also
  experiencing no joy at all with extremely flaky connections.
  Fortunately one of the engineers at Robox-CEL published a patch to the
  udev .rules files and this cured the 3-D Printer connections and when
  I applied the same to the mobile phone .rules file it has been
  reliable as well.  His assertion was the later Linux's (I am not sure
  how wide he sees this problem here) have some sort of 'improvement'
  that interrogates the USB devices and in my case these two devices
  don't work with this new 'feature' and are extremely flaky.

  Here are the two new .rules I have added, that work for me

  # Samsung
  ATTRS{idVendor}=="04e8", ATTRS{idProduct}=="685b", ENV{ID_MM_DEVICE_IGNORE}="1"
  SUBSYSTEM=="usb", ATTR{idVendor}=="04e8", ATTR{idProduct}=="685b", GROUP="plugdev", NAME="GalaxySII", MODE="0666", OWNER="<username>"

  #Robox Rules to stop the Linux sending disruptive commands to the 3D-Printer
  ATTRS{idVendor}=="16d0", ATTRS{idProduct}=="081b", ENV{ID_MM_DEVICE_IGNORE}="1"
  #Establish a standard name for the Robox tty interface
  SUBSYSTEM=="tty", ATTRS{idVendor}=="16d0", ATTRS{idProduct}=="081b", SYMLINK="robox%n", MODE="0666"

  The first line in the .rules is the really critical one.

  This has been a huge problem for me, and I registering it as a 'bug'
  as I believe the OS should be a bit more clever with these devices and
  should not require this sort of user work-around.  Over the last two
  years my phone went from super reliable to unusable, wasting huge
  amounts of my time, and recently made my 14 day old 3-D Printer from a
  quality manufacturer useless.

  Thank you for your time and patience. I can send you a log of the
  transactions of the Robox machine's interactions with the USB port if
  you need them.  However the above two files should give a good lead on
  where I feel the problems lie.

  Cheers, Rob Ward

  PS The Robox people also altered the shell script in their software to
  look for the newly named 'robox0' connection.

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