[Desktop-packages] [Bug 1169117] Re: REGRESSION: MBIM kernel suppport should be disabled until userspace support available (breaks Ericsson H5321 etc.)

2013-09-21 Thread zlatko
Having the similar issue with Ericsson H5321gw in Toshiba Z830. SIM registers 
to network, but than fails to connect most of the tries(like 1success to 30 
failures).  I tried the solution in 2), after reboot I connected from the first 
try, but after that I have not be able to get connection.
I see the driver used in my case is cdc_acm - cna this be the reason?

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Title:
  REGRESSION: MBIM kernel suppport should be disabled until userspace
  support available (breaks Ericsson H5321 etc.)

Status in The Linux Kernel:
  Fix Released
Status in “linux” package in Ubuntu:
  Confirmed
Status in “modemmanager” package in Ubuntu:
  Invalid
Status in “linux” package in Debian:
  Fix Committed

Bug description:
  "commit bd329e1 ("net: cdc_ncm: do not bind to NCM compatible MBIM devices")
  introduced a new policy, preferring MBIM for dual NCM/MBIM functions if
  the cdc_mbim driver was enabled.  This caused a regression for users
  wanting to use NCM."

  This could be solved in different ways:

  1) Remove "cdc_mbim.ko" from packages like linux-image-extra-3.8.0-XX-
  YY. Easy, but makes it harder for people to experiment with MBIM and
  add userspace support

  2) Set the kernel parameter "prefer_mbim" to false for "cdc_ncm"
  module. This could be done by adding a file "/etc/modprobe.d/avoid-
  mbim.conf" with content:

    options cdc_ncm prefer_mbim=N

  This will allow people wanting to test MBIM easy access by removing or
  editing the file. Then the question is if this file should stay in
  modemmanager package or maybe in the kernel package?

  The required code for this option to exist seems to be in Ubuntu
  Raring packages in commit 04188f3010f64ddf2c75c3f4953eee9bdb4f5cc1.

  3) Debian has solved it by patching the kernel to reverse the default
  to be not to use MBIM:

  http://web.archiveorange.com/archive/v/dbmrrKybrWTJ0XZGsB3B
  http://lists.debian.org/debian-kernel/2013/03/msg00611.html

  See also bug #1102343.

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[Desktop-packages] [Bug 1169117] Re: REGRESSION: MBIM kernel suppport should be disabled until userspace support available (breaks Ericsson H5321 etc.)

2013-09-21 Thread zlatko
Also the modem itself is recognized as Toshiba, not Ericsson:
[code]
Sep 21 15:31:49 toshiba kernel: [ 7078.450687] usb 1-1.6: new high-speed USB 
device number 7 using ehci_hcd
Sep 21 15:31:49 toshiba kernel: [ 7078.545002] usb 1-1.6: New USB device found, 
idVendor=0930, idProduct=1319
Sep 21 15:31:49 toshiba kernel: [ 7078.545013] usb 1-1.6: New USB device 
strings: Mfr=1, Product=2, SerialNumber=3
Sep 21 15:31:49 toshiba kernel: [ 7078.545019] usb 1-1.6: Product: H5321gw
Sep 21 15:31:49 toshiba kernel: [ 7078.545024] usb 1-1.6: Manufacturer: TOSHIBA 
Sep 21 15:31:49 toshiba kernel: [ 7078.545029] usb 1-1.6: SerialNumber: 
24359BF58A1F4870
Sep 21 15:31:49 toshiba mtp-probe: checking bus 1, device 7: 
"/sys/devices/pci:00/:00:1a.0/usb1/1-1/1-1.6"
Sep 21 15:31:49 toshiba kernel: [ 7078.578410] cdc_acm 1-1.6:1.1: ttyACM0: USB 
ACM device
Sep 21 15:31:49 toshiba kernel: [ 7078.582138] cdc_acm 1-1.6:1.3: ttyACM1: USB 
ACM device
Sep 21 15:31:49 toshiba kernel: [ 7078.590550] cdc_wdm 1-1.6:1.5: cdc-wdm0: USB 
WDM device
Sep 21 15:31:49 toshiba kernel: [ 7078.605591] usb 1-1.6: MAC-Address: 
02:15:e0:ec:01:00
Sep 21 15:31:49 toshiba kernel: [ 7078.606071] cdc_ncm 1-1.6:1.6: usb0: 
register 'cdc_ncm' at usb-:00:1a.0-1.6, CDC NCM, 02:15:e0:ec:01:00
Sep 21 15:31:49 toshiba kernel: [ 7078.607135] cdc_wdm 1-1.6:1.8: cdc-wdm1: USB 
WDM device
Sep 21 15:31:49 toshiba kernel: [ 7078.607728] cdc_acm 1-1.6:1.9: ttyACM2: USB 
ACM device
Sep 21 15:31:49 toshiba mtp-probe: bus: 1, device: 7 was not an MTP device
[/code]

It is really wird why the modem connects occasionally, but most of the
times doesn't.

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Title:
  REGRESSION: MBIM kernel suppport should be disabled until userspace
  support available (breaks Ericsson H5321 etc.)

Status in The Linux Kernel:
  Fix Released
Status in “linux” package in Ubuntu:
  Confirmed
Status in “modemmanager” package in Ubuntu:
  Invalid
Status in “linux” package in Debian:
  Fix Committed

Bug description:
  "commit bd329e1 ("net: cdc_ncm: do not bind to NCM compatible MBIM devices")
  introduced a new policy, preferring MBIM for dual NCM/MBIM functions if
  the cdc_mbim driver was enabled.  This caused a regression for users
  wanting to use NCM."

  This could be solved in different ways:

  1) Remove "cdc_mbim.ko" from packages like linux-image-extra-3.8.0-XX-
  YY. Easy, but makes it harder for people to experiment with MBIM and
  add userspace support

  2) Set the kernel parameter "prefer_mbim" to false for "cdc_ncm"
  module. This could be done by adding a file "/etc/modprobe.d/avoid-
  mbim.conf" with content:

    options cdc_ncm prefer_mbim=N

  This will allow people wanting to test MBIM easy access by removing or
  editing the file. Then the question is if this file should stay in
  modemmanager package or maybe in the kernel package?

  The required code for this option to exist seems to be in Ubuntu
  Raring packages in commit 04188f3010f64ddf2c75c3f4953eee9bdb4f5cc1.

  3) Debian has solved it by patching the kernel to reverse the default
  to be not to use MBIM:

  http://web.archiveorange.com/archive/v/dbmrrKybrWTJ0XZGsB3B
  http://lists.debian.org/debian-kernel/2013/03/msg00611.html

  See also bug #1102343.

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[Desktop-packages] [Bug 1169117] Re: REGRESSION: MBIM kernel suppport should be disabled until userspace support available (breaks Ericsson H5321 etc.)

2014-01-02 Thread Christopher M. Penalver
** Description changed:

  "commit bd329e1 ("net: cdc_ncm: do not bind to NCM compatible MBIM devices")
  introduced a new policy, preferring MBIM for dual NCM/MBIM functions if
  the cdc_mbim driver was enabled.  This caused a regression for users
  wanting to use NCM."
  
  This could be solved in different ways:
  
  1) Remove "cdc_mbim.ko" from packages like linux-image-extra-3.8.0-XX-
  YY. Easy, but makes it harder for people to experiment with MBIM and add
  userspace support
  
  2) Set the kernel parameter "prefer_mbim" to false for "cdc_ncm" module.
  This could be done by adding a file "/etc/modprobe.d/avoid-mbim.conf"
  with content:
  
    options cdc_ncm prefer_mbim=N
  
  This will allow people wanting to test MBIM easy access by removing or
  editing the file. Then the question is if this file should stay in
  modemmanager package or maybe in the kernel package?
  
  The required code for this option to exist seems to be in Ubuntu Raring
  packages in commit 04188f3010f64ddf2c75c3f4953eee9bdb4f5cc1.
  
  3) Debian has solved it by patching the kernel to reverse the default to
  be not to use MBIM:
  
  http://web.archiveorange.com/archive/v/dbmrrKybrWTJ0XZGsB3B
  http://lists.debian.org/debian-kernel/2013/03/msg00611.html
  
  See also bug #1102343.
+ 
+ WORKAROUND: Add in /etc/modprobe.d/cdc_ncm.conf :
+ options cdc_ncm prefer_mbim=N

-- 
You received this bug notification because you are a member of Desktop
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https://bugs.launchpad.net/bugs/1169117

Title:
  REGRESSION: MBIM kernel suppport should be disabled until userspace
  support available (breaks Ericsson H5321 etc.)

Status in The Linux Kernel:
  Fix Released
Status in “linux” package in Ubuntu:
  Confirmed
Status in “modemmanager” package in Ubuntu:
  Invalid
Status in “linux” package in Debian:
  Fix Committed

Bug description:
  "commit bd329e1 ("net: cdc_ncm: do not bind to NCM compatible MBIM devices")
  introduced a new policy, preferring MBIM for dual NCM/MBIM functions if
  the cdc_mbim driver was enabled.  This caused a regression for users
  wanting to use NCM."

  This could be solved in different ways:

  1) Remove "cdc_mbim.ko" from packages like linux-image-extra-3.8.0-XX-
  YY. Easy, but makes it harder for people to experiment with MBIM and
  add userspace support

  2) Set the kernel parameter "prefer_mbim" to false for "cdc_ncm"
  module. This could be done by adding a file "/etc/modprobe.d/avoid-
  mbim.conf" with content:

    options cdc_ncm prefer_mbim=N

  This will allow people wanting to test MBIM easy access by removing or
  editing the file. Then the question is if this file should stay in
  modemmanager package or maybe in the kernel package?

  The required code for this option to exist seems to be in Ubuntu
  Raring packages in commit 04188f3010f64ddf2c75c3f4953eee9bdb4f5cc1.

  3) Debian has solved it by patching the kernel to reverse the default
  to be not to use MBIM:

  http://web.archiveorange.com/archive/v/dbmrrKybrWTJ0XZGsB3B
  http://lists.debian.org/debian-kernel/2013/03/msg00611.html

  See also bug #1102343.

  WORKAROUND: Add in /etc/modprobe.d/cdc_ncm.conf :
  options cdc_ncm prefer_mbim=N

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[Desktop-packages] [Bug 1169117] Re: REGRESSION: MBIM kernel suppport should be disabled until userspace support available (breaks Ericsson H5321 etc.)

2014-01-02 Thread Christopher M. Penalver
Marius B. Kotsbak, at this point I'm not seeing anything wrong with
syncing with Debian on this, despite the WORKAROUND. -> Triaged

** Description changed:

  "commit bd329e1 ("net: cdc_ncm: do not bind to NCM compatible MBIM devices")
  introduced a new policy, preferring MBIM for dual NCM/MBIM functions if
  the cdc_mbim driver was enabled.  This caused a regression for users
  wanting to use NCM."
  
+ For background on this change please see Bug #1102343.
+ 
  This could be solved in different ways:
+ 1) Remove "cdc_mbim.ko" from packages like linux-image-extra-3.8.0-XX-YY. 
Easy, but makes it harder for people to experiment with MBIM and add userspace 
support
  
- 1) Remove "cdc_mbim.ko" from packages like linux-image-extra-3.8.0-XX-
- YY. Easy, but makes it harder for people to experiment with MBIM and add
- userspace support
- 
- 2) Set the kernel parameter "prefer_mbim" to false for "cdc_ncm" module.
- This could be done by adding a file "/etc/modprobe.d/avoid-mbim.conf"
- with content:
- 
+ 2) Set the kernel parameter "prefer_mbim" to false for "cdc_ncm" module. This 
could be done by adding a file "/etc/modprobe.d/avoid-mbim.conf" with content:
    options cdc_ncm prefer_mbim=N
  
  This will allow people wanting to test MBIM easy access by removing or
  editing the file. Then the question is if this file should stay in
- modemmanager package or maybe in the kernel package?
+ modemmanager package or maybe in the kernel package? The required code
+ for this option to exist seems to be in Ubuntu Raring packages in commit
+ 04188f3010f64ddf2c75c3f4953eee9bdb4f5cc1.
  
- The required code for this option to exist seems to be in Ubuntu Raring
- packages in commit 04188f3010f64ddf2c75c3f4953eee9bdb4f5cc1.
- 
- 3) Debian has solved it by patching the kernel to reverse the default to
- be not to use MBIM:
- 
- http://web.archiveorange.com/archive/v/dbmrrKybrWTJ0XZGsB3B
+ 3) Debian has solved it by patching the kernel to reverse the default to be 
not to use MBIM:
+ 
http://lists.alioth.debian.org/pipermail/kernel-svn-changes/2013-March/018852.html
  http://lists.debian.org/debian-kernel/2013/03/msg00611.html
- 
- See also bug #1102343.
  
  WORKAROUND: Add in /etc/modprobe.d/cdc_ncm.conf :
  options cdc_ncm prefer_mbim=N

** Changed in: linux (Ubuntu)
   Importance: High => Low

** Changed in: linux (Ubuntu)
   Status: Confirmed => Triaged

** Changed in: linux (Ubuntu)
Milestone: ubuntu-13.04 => ubuntu-14.04-feature-freeze

-- 
You received this bug notification because you are a member of Desktop
Packages, which is subscribed to modemmanager in Ubuntu.
https://bugs.launchpad.net/bugs/1169117

Title:
  REGRESSION: MBIM kernel suppport should be disabled until userspace
  support available (breaks Ericsson H5321 etc.)

Status in The Linux Kernel:
  Fix Released
Status in “linux” package in Ubuntu:
  Triaged
Status in “modemmanager” package in Ubuntu:
  Invalid
Status in “linux” package in Debian:
  Invalid

Bug description:
  "commit bd329e1 ("net: cdc_ncm: do not bind to NCM compatible MBIM devices")
  introduced a new policy, preferring MBIM for dual NCM/MBIM functions if
  the cdc_mbim driver was enabled.  This caused a regression for users
  wanting to use NCM."

  For background on this change please see Bug #1102343.

  This could be solved in different ways:
  1) Remove "cdc_mbim.ko" from packages like linux-image-extra-3.8.0-XX-YY. 
Easy, but makes it harder for people to experiment with MBIM and add userspace 
support

  2) Set the kernel parameter "prefer_mbim" to false for "cdc_ncm" module. This 
could be done by adding a file "/etc/modprobe.d/avoid-mbim.conf" with content:
    options cdc_ncm prefer_mbim=N

  This will allow people wanting to test MBIM easy access by removing or
  editing the file. Then the question is if this file should stay in
  modemmanager package or maybe in the kernel package? The required code
  for this option to exist seems to be in Ubuntu Raring packages in
  commit 04188f3010f64ddf2c75c3f4953eee9bdb4f5cc1.

  3) Debian has solved it by patching the kernel to reverse the default to be 
not to use MBIM:
  
http://lists.alioth.debian.org/pipermail/kernel-svn-changes/2013-March/018852.html
  http://lists.debian.org/debian-kernel/2013/03/msg00611.html

  WORKAROUND: Add in /etc/modprobe.d/cdc_ncm.conf :
  options cdc_ncm prefer_mbim=N

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[Desktop-packages] [Bug 1169117] Re: REGRESSION: MBIM kernel suppport should be disabled until userspace support available (breaks Ericsson H5321 etc.)

2014-01-02 Thread Christopher M. Penalver
Closing the linux (Debian) task given it's already resolved for them.

** Changed in: linux (Debian)
   Status: Fix Committed => Invalid

-- 
You received this bug notification because you are a member of Desktop
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https://bugs.launchpad.net/bugs/1169117

Title:
  REGRESSION: MBIM kernel suppport should be disabled until userspace
  support available (breaks Ericsson H5321 etc.)

Status in The Linux Kernel:
  Fix Released
Status in “linux” package in Ubuntu:
  Triaged
Status in “modemmanager” package in Ubuntu:
  Invalid
Status in “linux” package in Debian:
  Invalid

Bug description:
  "commit bd329e1 ("net: cdc_ncm: do not bind to NCM compatible MBIM devices")
  introduced a new policy, preferring MBIM for dual NCM/MBIM functions if
  the cdc_mbim driver was enabled.  This caused a regression for users
  wanting to use NCM."

  For background on this change please see Bug #1102343.

  This could be solved in different ways:
  1) Remove "cdc_mbim.ko" from packages like linux-image-extra-3.8.0-XX-YY. 
Easy, but makes it harder for people to experiment with MBIM and add userspace 
support

  2) Set the kernel parameter "prefer_mbim" to false for "cdc_ncm" module. This 
could be done by adding a file "/etc/modprobe.d/avoid-mbim.conf" with content:
    options cdc_ncm prefer_mbim=N

  This will allow people wanting to test MBIM easy access by removing or
  editing the file. Then the question is if this file should stay in
  modemmanager package or maybe in the kernel package? The required code
  for this option to exist seems to be in Ubuntu Raring packages in
  commit 04188f3010f64ddf2c75c3f4953eee9bdb4f5cc1.

  3) Debian has solved it by patching the kernel to reverse the default to be 
not to use MBIM:
  
http://lists.alioth.debian.org/pipermail/kernel-svn-changes/2013-March/018852.html
  http://lists.debian.org/debian-kernel/2013/03/msg00611.html

  WORKAROUND: Add in /etc/modprobe.d/cdc_ncm.conf :
  options cdc_ncm prefer_mbim=N

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[Desktop-packages] [Bug 1169117] Re: REGRESSION: MBIM kernel suppport should be disabled until userspace support available (breaks Ericsson H5321 etc.)

2014-01-03 Thread Marius B. Kotsbak
At this time, I think it is better to introduce MBIM support in Ubuntu
as the support in Modemmanager is already there. See bug #1102343 and
#1123302.

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https://bugs.launchpad.net/bugs/1169117

Title:
  REGRESSION: MBIM kernel suppport should be disabled until userspace
  support available (breaks Ericsson H5321 etc.)

Status in The Linux Kernel:
  Fix Released
Status in “linux” package in Ubuntu:
  Triaged
Status in “modemmanager” package in Ubuntu:
  Invalid
Status in “linux” package in Debian:
  Invalid

Bug description:
  "commit bd329e1 ("net: cdc_ncm: do not bind to NCM compatible MBIM devices")
  introduced a new policy, preferring MBIM for dual NCM/MBIM functions if
  the cdc_mbim driver was enabled.  This caused a regression for users
  wanting to use NCM."

  For background on this change please see Bug #1102343.

  This could be solved in different ways:
  1) Remove "cdc_mbim.ko" from packages like linux-image-extra-3.8.0-XX-YY. 
Easy, but makes it harder for people to experiment with MBIM and add userspace 
support

  2) Set the kernel parameter "prefer_mbim" to false for "cdc_ncm" module. This 
could be done by adding a file "/etc/modprobe.d/avoid-mbim.conf" with content:
    options cdc_ncm prefer_mbim=N

  This will allow people wanting to test MBIM easy access by removing or
  editing the file. Then the question is if this file should stay in
  modemmanager package or maybe in the kernel package? The required code
  for this option to exist seems to be in Ubuntu Raring packages in
  commit 04188f3010f64ddf2c75c3f4953eee9bdb4f5cc1.

  3) Debian has solved it by patching the kernel to reverse the default to be 
not to use MBIM:
  
http://lists.alioth.debian.org/pipermail/kernel-svn-changes/2013-March/018852.html
  http://lists.debian.org/debian-kernel/2013/03/msg00611.html

  WORKAROUND: Add in /etc/modprobe.d/cdc_ncm.conf :
  options cdc_ncm prefer_mbim=N

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[Desktop-packages] [Bug 1169117] Re: REGRESSION: MBIM kernel suppport should be disabled until userspace support available (breaks Ericsson H5321 etc.)

2014-01-03 Thread Marius B. Kotsbak
Maybe this should be set to WONTFIX and possibly just fix it for older
versions (12.04 LTS).

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Title:
  REGRESSION: MBIM kernel suppport should be disabled until userspace
  support available (breaks Ericsson H5321 etc.)

Status in The Linux Kernel:
  Fix Released
Status in “linux” package in Ubuntu:
  Triaged
Status in “modemmanager” package in Ubuntu:
  Invalid
Status in “linux” package in Debian:
  Invalid

Bug description:
  "commit bd329e1 ("net: cdc_ncm: do not bind to NCM compatible MBIM devices")
  introduced a new policy, preferring MBIM for dual NCM/MBIM functions if
  the cdc_mbim driver was enabled.  This caused a regression for users
  wanting to use NCM."

  For background on this change please see Bug #1102343.

  This could be solved in different ways:
  1) Remove "cdc_mbim.ko" from packages like linux-image-extra-3.8.0-XX-YY. 
Easy, but makes it harder for people to experiment with MBIM and add userspace 
support

  2) Set the kernel parameter "prefer_mbim" to false for "cdc_ncm" module. This 
could be done by adding a file "/etc/modprobe.d/avoid-mbim.conf" with content:
    options cdc_ncm prefer_mbim=N

  This will allow people wanting to test MBIM easy access by removing or
  editing the file. Then the question is if this file should stay in
  modemmanager package or maybe in the kernel package? The required code
  for this option to exist seems to be in Ubuntu Raring packages in
  commit 04188f3010f64ddf2c75c3f4953eee9bdb4f5cc1.

  3) Debian has solved it by patching the kernel to reverse the default to be 
not to use MBIM:
  
http://lists.alioth.debian.org/pipermail/kernel-svn-changes/2013-March/018852.html
  http://lists.debian.org/debian-kernel/2013/03/msg00611.html

  WORKAROUND: Add in /etc/modprobe.d/cdc_ncm.conf :
  options cdc_ncm prefer_mbim=N

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[Desktop-packages] [Bug 1169117] Re: REGRESSION: MBIM kernel suppport should be disabled until userspace support available (breaks Ericsson H5321 etc.)

2013-08-16 Thread Till Kamppeter
Will modemmanager 0.7.991 make it into Saucy?

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https://bugs.launchpad.net/bugs/1169117

Title:
  REGRESSION: MBIM kernel suppport should be disabled until userspace
  support available (breaks Ericsson H5321 etc.)

Status in The Linux Kernel:
  Fix Released
Status in “linux” package in Ubuntu:
  Confirmed
Status in “modemmanager” package in Ubuntu:
  Invalid
Status in “linux” package in Debian:
  Fix Committed

Bug description:
  "commit bd329e1 ("net: cdc_ncm: do not bind to NCM compatible MBIM devices")
  introduced a new policy, preferring MBIM for dual NCM/MBIM functions if
  the cdc_mbim driver was enabled.  This caused a regression for users
  wanting to use NCM."

  This could be solved in different ways:

  1) Remove "cdc_mbim.ko" from packages like linux-image-extra-3.8.0-XX-
  YY. Easy, but makes it harder for people to experiment with MBIM and
  add userspace support

  2) Set the kernel parameter "prefer_mbim" to false for "cdc_ncm"
  module. This could be done by adding a file "/etc/modprobe.d/avoid-
  mbim.conf" with content:

    options cdc_ncm prefer_mbim=N

  This will allow people wanting to test MBIM easy access by removing or
  editing the file. Then the question is if this file should stay in
  modemmanager package or maybe in the kernel package?

  The required code for this option to exist seems to be in Ubuntu
  Raring packages in commit 04188f3010f64ddf2c75c3f4953eee9bdb4f5cc1.

  3) Debian has solved it by patching the kernel to reverse the default
  to be not to use MBIM:

  http://web.archiveorange.com/archive/v/dbmrrKybrWTJ0XZGsB3B
  http://lists.debian.org/debian-kernel/2013/03/msg00611.html

  See also bug #1102343.

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[Desktop-packages] [Bug 1169117] Re: REGRESSION: MBIM kernel suppport should be disabled until userspace support available (breaks Ericsson H5321 etc.)

2013-08-16 Thread Marius B. Kotsbak
Probably, but it will not solve this bug. See bug #1102343.

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https://bugs.launchpad.net/bugs/1169117

Title:
  REGRESSION: MBIM kernel suppport should be disabled until userspace
  support available (breaks Ericsson H5321 etc.)

Status in The Linux Kernel:
  Fix Released
Status in “linux” package in Ubuntu:
  Confirmed
Status in “modemmanager” package in Ubuntu:
  Invalid
Status in “linux” package in Debian:
  Fix Committed

Bug description:
  "commit bd329e1 ("net: cdc_ncm: do not bind to NCM compatible MBIM devices")
  introduced a new policy, preferring MBIM for dual NCM/MBIM functions if
  the cdc_mbim driver was enabled.  This caused a regression for users
  wanting to use NCM."

  This could be solved in different ways:

  1) Remove "cdc_mbim.ko" from packages like linux-image-extra-3.8.0-XX-
  YY. Easy, but makes it harder for people to experiment with MBIM and
  add userspace support

  2) Set the kernel parameter "prefer_mbim" to false for "cdc_ncm"
  module. This could be done by adding a file "/etc/modprobe.d/avoid-
  mbim.conf" with content:

    options cdc_ncm prefer_mbim=N

  This will allow people wanting to test MBIM easy access by removing or
  editing the file. Then the question is if this file should stay in
  modemmanager package or maybe in the kernel package?

  The required code for this option to exist seems to be in Ubuntu
  Raring packages in commit 04188f3010f64ddf2c75c3f4953eee9bdb4f5cc1.

  3) Debian has solved it by patching the kernel to reverse the default
  to be not to use MBIM:

  http://web.archiveorange.com/archive/v/dbmrrKybrWTJ0XZGsB3B
  http://lists.debian.org/debian-kernel/2013/03/msg00611.html

  See also bug #1102343.

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