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[Launchpad Bug Tracker <1605974@xxxxxxxxxxxxxxxxxx>]

This bug was fixed in the package linux-firmware - 1.157.8

---------------
linux-firmware (1.157.8) xenial; urgency=medium

  * usbduxsigma_firmware.bin: old version causes driver crash (LP: #1605974)
    - usbdux: usbduxsigma: created matching binary of the firmware

linux-firmware (1.157.7) xenial; urgency=medium

  * Intel 8260 doesn't work with linux kernel 4.8 when using ucode version 22
    (LP: #1647826)
    - UBUNTU: SAUCE: Remove iwlwifi-8000C-22.ucode

 -- Seth Forshee <seth.forshee@xxxxxxxxxxxxx>  Fri, 06 Jan 2017 16:28:55
-0600

** Changed in: linux-firmware (Ubuntu Xenial)
       Status: Fix Committed => Fix Released

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https://bugs.launchpad.net/bugs/1605974

Title:
  usbduxsigma_firmware.bin: old version causes driver crash

Status in linux-firmware package in Ubuntu:
  Fix Released
Status in linux-firmware source package in Xenial:
  Fix Released

Bug description:
  SRU Justification

  Impact: The usbduxsigma firmware is out of date and causes the driver
  to fail. This is fixed by updating the firmware from upstream linux-
  firmware.

  Test Case: Using the driver with the old firmware fails. Using it with
  the new firmware does not.

  Regression potential: The firmware is only used by the one driver so
  there is no potential for regression anywhere else, and the driver
  already isn't working with the old firmware.

  ---

  The firmware of the usbduxsigma (alongside with the usbduxsigma.c) was
  updated in 2015 during a major rewrite but its binary was still the
  old one which causes the kernel driver to fail.

  I've submitted a patch to the kernel people (see below).

  However, as a quick fix could you also apply the patch to the package
  directly to have this fixed now and then we can wait until it trickles
  down from the kernel.

  I'm the maintainer of both the firmware and the drivers.

  This affects both 32 and 64 bit distros.

  Best,
  /Bernd Porr (www.linux-usb-daq.co.uk)

  Description:	Ubuntu 16.04.1 LTS
  Release:	16.04

  linux-firmware:
    Installed: 1.157.2
    Candidate: 1.157.2
    Version table:
   *** 1.157.2 500
          500 http://gb.archive.ubuntu.com/ubuntu xenial-updates/main amd64 Packages
          500 http://gb.archive.ubuntu.com/ubuntu xenial-updates/main i386 Packages
          100 /var/lib/dpkg/status
       1.157 500
          500 http://gb.archive.ubuntu.com/ubuntu xenial/main amd64 Packages
          500 http://gb.archive.ubuntu.com/ubuntu xenial/main i386 Packages

  Expect to happen: plug in a duxduxsigma device, start comedirecord and see the signals plotted
  Happens instead: plug in a duxduxsigma device, start comedirecord and GARBLED DATA shows up / crash
  Fix: install this patch (new version of the firmware binary)

  ProblemType: Bug
  DistroRelease: Ubuntu 16.04
  Package: linux-firmware 1.157.2 [modified: lib/firmware/usbduxsigma_firmware.bin]
  ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13
  Uname: Linux 4.4.0-31-generic x86_64
  ApportVersion: 2.20.1-0ubuntu2.1
  Architecture: amd64
  CurrentDesktop: Unity
  Date: Sun Jul 24 10:04:19 2016
  Dependencies:

  InstallationDate: Installed on 2013-12-09 (957 days ago)
  InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20131209)
  PackageArchitecture: all
  SourcePackage: linux-firmware
  UpgradeStatus: Upgraded to xenial on 2016-07-23 (0 days ago)

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