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

 

I just wait for someone to review it, it works fine for EM7305. But now
the Dell project want support another new device(EM7445), I just add
some other new patches, but currently it  can't work, and I need more
time to debug it. :)

 I just prepare to backport below two patches, now it could build and
run successfully. But they can't work for MBIM device, cause the
backport depends on a lot changes, might be missed some other code.

'''
commit 37bda21a370bfd5c125a7093bec55dca3914af9b
Author: Aleksander Morgado <aleksander@xxxxxxxxxxxxx>
Date: Tue Feb 17 10:57:22 2015 +0100

    plugin: add implicit QMI and MBIM forbidden drivers check
'''

'''
commit 6bbc4c1746c9e7c48e12dcb1e1986f1e16327161
Author: Aleksander Morgado <aleksander@xxxxxxxxxxxxx>
Date: Fri Feb 6 20:02:20 2015 +0100

    sierra: move all the legacy Sierra support to a new 'sierra-legacy'
plugin

    In short:

      * The 'sierra-legacy' plugin will handle all the old AT based modems,
        including the DirectIP ones. This plugin is filtered by driver ('sierra' or
        'sierra_net') and forbidden-drivers ('qmi_wwan' and 'cdc_mbim'). This plugin
        should also grab HP and AT&T branded models if they are handled by the
        proper kernel driver.

      * The 'sierra' plugin will only handle QMI or MBIM based Sierra modems, which
        are really all the new ones. This plugin is filtered by VID (0x1199) and
        driver (qmi_wwan and cdc_mbim).

    For this separation to work, the 'sierra' and 'sierra_net' plugins need to be
    complementary to each other.
'''


** Changed in: oem-priority
       Status: Incomplete => In Progress

** Changed in: oem-priority
       Status: In Progress => New

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

Title:
  novatel: improve probing for Dell branded modems

Status in ModemManager:
  New
Status in OEM Priority Project:
  New
Status in OEM Priority Project trusty series:
  New
Status in modemmanager package in Ubuntu:
  New
Status in modemmanager source package in Trusty:
  New

Bug description:
  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