I can't confirm for sure (long time ago), but I was upgrading from Ubuntu 12.04 
LTS (kernel 3.2) and I first bumped into this problem then.
I still see the problem in 16.04, but it does not prevent me from using the 

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  Tevii S471 DVB-S2 card hangs on firmware upload

Status in linux package in Ubuntu:

Bug description:
  I have fresh installed Ubuntu Trusty Tahr (Server) with kernel 3.13.0-29.
  Firmware file dvb-fe-ds3000.fw is putted into /lib/firmware
  On a system cold start I see in syslog:

  Jun  5 16:00:54 MMC kernel: [    9.601460] cx23885 driver version 0.0.3 loaded
  Jun  5 16:00:54 MMC kernel: [    9.601881] CORE cx23885[0]: subsystem: 
d471:9022, board: TeVii S471 [card=35,autodetected]
  Jun  5 16:00:54 MMC kernel: [    9.750010] cx23885_dvb_register() allocating 
1 frontend(s)
  Jun  5 16:00:54 MMC kernel: [    9.758499] cx23885[0]: cx23885 based dvb card
  Jun  5 16:00:54 MMC kernel: [    9.879035] DVB: registering new adapter 
  Jun  5 16:00:54 MMC kernel: [    9.879047] cx23885 0000:01:00.0: DVB: 
registering adapter 0 frontend 0 (Montage Technology DS3000)...
  Jun  5 16:00:54 MMC kernel: [    9.894578] cx23885_dev_checkrevision() 
Hardware revision = 0xa5
  Jun  5 16:00:54 MMC kernel: [    9.894595] cx23885[0]/0: found at 
0000:01:00.0, rev: 4, irq: 16, latency: 0, mmio: 0xfe800000

  But if I try to scan channels by scan or tvheadend I see this repeated lines:

  Jun  5 16:01:04 MMC kernel: [   20.051633] ds3000_firmware_ondemand: Waiting 
for firmware upload (dvb-fe-ds3000.fw)...
  Jun  5 16:01:04 MMC kernel: [   20.052608] ds3000_firmware_ondemand: Waiting 
for firmware upload(2)...

  Card works under Debian linux kernel image from unstable repo (linux-

  manjur@MMC:~$ lsb_release -rd
  Description:    Ubuntu 14.04 LTS
  Release:        14.04
  manjur@MMC:~$ apt-cache policy linux-image-generic
    Version table:
   *** 0
          500 http://archive.ubuntu.com/ubuntu/ trusty-proposed/main amd64 
          100 /var/lib/dpkg/status 0
          500 http://kz.archive.ubuntu.com/ubuntu/ trusty-updates/main amd64 
          500 http://security.ubuntu.com/ubuntu/ trusty-security/main amd64 
Packages 0
          500 http://kz.archive.ubuntu.com/ubuntu/ trusty/main amd64 Packages

  ProblemType: Bug
  DistroRelease: Ubuntu 14.04
  Package: linux-image-3.13.0-29-generic 3.13.0-29.52
  ProcVersionSignature: Ubuntu 3.13.0-29.52-generic
  Uname: Linux 3.13.0-29-generic x86_64
  ApportVersion: 2.14.1-0ubuntu3.2
  Architecture: amd64
  AudioDevicesInUse: Error: command ['fuser', '-v', '/dev/snd/by-path', 
'/dev/snd/controlC1', '/dev/snd/hwC1D0', '/dev/snd/pcmC1D0c', 
'/dev/snd/pcmC1D0p', '/dev/snd/pcmC1D1p', '/dev/snd/pcmC1D2c', 
'/dev/snd/controlC0', '/dev/snd/hwC0D0', '/dev/snd/pcmC0D3p', '/dev/snd/seq', 
'/dev/snd/timer'] failed with exit code 1:
  CRDA: Error: [Errno 2] No such file or directory: 'iw'
  Date: Thu Jun  5 17:31:07 2014
   eth0      no wireless extensions.
   lo        no wireless extensions.
  MachineType: To Be Filled By O.E.M. To Be Filled By O.E.M.
  ProcFB: 0 radeondrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-29-generic 
root=UUID=e93b9d23-aced-4d3c-bb1e-07346406d8de ro quiet splash vt.handoff=7
   linux-restricted-modules-3.13.0-29-generic N/A
   linux-backports-modules-3.13.0-29-generic  N/A
   linux-firmware                             1.127.2
  RfKill: Error: [Errno 2] No such file or directory: 'rfkill'
  SourcePackage: linux
  UpgradeStatus: No upgrade log present (probably fresh install)
  dmi.bios.date: 05/21/2012
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: P1.60
  dmi.board.name: E350M1/USB3
  dmi.board.vendor: ASRock
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: To Be Filled By O.E.M.
  dmi.chassis.version: To Be Filled By O.E.M.
  dmi.product.name: To Be Filled By O.E.M.
  dmi.product.version: To Be Filled By O.E.M.
  dmi.sys.vendor: To Be Filled By O.E.M.

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