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[Bug 1441095] Re: novatel: improve probing for Dell branded modems

 

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------------------------------------------------------------------------
On 2014-11-25T20:30:17+00:00 Aleksander Morgado wrote:

Dell rebrands modems from different vendors, including Novatel, Sierra
and Ericsson. Until now we defaulted to the Novatel plugin when a Dell
device was found, but then we're breaking newer MBIM Sierra Dell-branded
modems, as we don't have MBIM support in the Novatel plugin.

So, we should try to improve the probing in the Novatel, Sierra and MBM
plugins, so that they probe also Dell devices, and we'll then try to
match via AT-probing which plugin should be handling the Dell device.

Quoting Dan:

"The case we care about for Novatel is AT-only devices.  For those, here
is a list of commands we can use to identify them and some sample
replies.  Built from the XU870 (Dell Wireless 5510), EX725, S720, E362.

We should only do this probing if the following are true:

1) The device only has AT ports; eg it does *not* have any QMI, MBIM, or
"net" ports

2) The device does *not* report LTE capabilities via ATI or GCAP

Early Novatel QMI-capable devices (like the E362) support these commands
(at$nw*) but of course we don't want to treat them as AT-only Novatel.

=======

ati1
Manufacturer: Novatel Wireless Incorporated
Manufacturer: NOVATEL WIRELESS INCORPORATED

AT+GMI
Novatel Wireless Incorporated
NOVATEL WIRELESS INCORPORATED

at$nwdegc   (GSM/UMTS only)
(non-error response sufficient)

=======

If for some reason those don't work, here are some more esoteric ones
that we could potentially use:

AT$NWHFP?   (gsm only)
AT$NWCSQ    (gsm only)
AT$NWWDIS?  (gsm only)
AT$NWERR?   (gsm only)
AT$NWCFT?   (gsm only)
AT$NWRAT?   (gsm only)
AT$NWLTIME  (cdma only)
at$nwrssi   (cdma only)"

More context in the ML:
http://lists.freedesktop.org/archives/modemmanager-devel/2014-November/001636.html

Reply at:
https://bugs.launchpad.net/ubuntu/+source/modemmanager/+bug/1441095/comments/0

------------------------------------------------------------------------
On 2015-02-18T19:08:44+00:00 Aleksander Morgado wrote:

A new 'dell' plugin has been now merged to git master, will be available
in ModemManager 1.6.

Reply at:
https://bugs.launchpad.net/ubuntu/+source/modemmanager/+bug/1441095/comments/1


** Changed in: modemmanager
       Status: Unknown => Fix Released

** Changed in: modemmanager
   Importance: Unknown => High

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https://bugs.launchpad.net/bugs/1441095

Title:
  novatel: improve probing for Dell branded modems

Status in Libmbim:
  Fix Released
Status in ModemManager:
  Fix Released
Status in OEM Priority Project:
  In Progress
Status in OEM Priority Project trusty series:
  In Progress
Status in libmbim package in Ubuntu:
  Fix Released
Status in modemmanager package in Ubuntu:
  Fix Released
Status in network-manager package in Ubuntu:
  Fix Released
Status in libmbim source package in Trusty:
  Fix Committed
Status in modemmanager source package in Trusty:
  In Progress
Status in network-manager source package in Trusty:
  In Progress

Bug description:
  [Impact]

   * The users can not use the WWAN of Sierra DW5809e (EM7305) or Sierra
  DW5811e (EM7455) to connect to Internet.

  [Test Case]

   * Insert the WWAN of Sierra DW5809e (EM7305) or Sierra DW5811e
  (EM7455).

   * Insert the SIM, boot the Ubuntu system, and connect to Internet by
  NetworkManager.

  [Regression Potential]

   * No trivial regression so far.

  [Other Info]
   
   * None

  Dell rebrands modems from different vendors, including Novatel, Sierra
  and Ericsson. Until now we defaulted to the Novatel plugin when a Dell
  device was found, but then we're breaking newer MBIM Sierra Dell-
  branded modems, as we don't have MBIM support in the Novatel plugin.

  So, we should try to improve the probing in the Novatel, Sierra and
  MBM plugins, so that they probe also Dell devices, and we'll then try
  to match via AT-probing which plugin should be handling the Dell
  device.

  https://bugs.freedesktop.org/show_bug.cgi?id=86713

  Could we backport this patch  into trusty? Thanks!

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References