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fwupd/plugins/modem-manager
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Richard Hughes 9a68084dbc Always check for PLAIN when doing vercmp() operations 
In 1de7cc we checked the version format when checking for update, but there are
many other places that are doing verfmt-insensitive comparisons. For instance,
the predicates in <requires> all fail if the device version format is plain.
his breaks updating some NVMe drives where the `ne` requirements are not
semantic versions.

To avoid trying to catch all the bugs in different places, and in case we have
a future verfmt that should be treated another way, refactor this out in to a
common function and deprecate the old function.
2020-02-20 15:49:27 +00:00
..
fu-mm-device.c modem-manager: explicitly use plain version format 2019-11-13 17:41:22 +00:00
fu-mm-device.h trivial: Remove G_BEGIN_DECLS from all private headers 2019-10-09 20:02:16 +01:00
fu-mm-utils.c trivial: Fix a compile error with older versions of gudev 2019-11-02 07:47:02 -05:00
fu-mm-utils.h trivial: Fix a compile error with older versions of gudev 2019-11-02 07:47:02 -05:00
fu-plugin-modem-manager.c Always check for PLAIN when doing vercmp() operations 2020-02-20 15:49:27 +00:00
fu-qmi-pdc-updater.c trivial: Fix up some typos from codespell 2019-11-01 14:21:20 +00:00
fu-qmi-pdc-updater.h trivial: Remove G_BEGIN_DECLS from all private headers 2019-10-09 20:02:16 +01:00
meson.build Convert libfwupdprivate to a shared library libfwupdplugin 2019-11-27 11:32:43 +00:00
modem-manager.quirk modem-manager: add quirks for the Foxconn T77W968 modules 2019-11-13 10:54:29 +00:00
README.md trivial: Document the use of vendor-id in each plugin 2019-12-11 18:10:44 +00:00

README.md

ModemManager

Introduction

This plugin adds support for devices managed by ModemManager.

GUID Generation

These device use the ModemManager "Firmware Device IDs" as the GUID, e.g.

  • USB\VID_413C&PID_81D7&REV_0318&CARRIER_VODAFONE
  • USB\VID_413C&PID_81D7&REV_0318
  • USB\VID_413C&PID_81D7
  • USB\VID_413C

Vendor ID Security

The vendor ID is set from the USB vendor, for example USB:0x413C

Update method: fastboot

If the device supports the 'fastboot' update method, it must also report which AT command should be used to trigger the modem reboot into fastboot mode.

Once the device is in fastboot mode, the firmware upgrade process will happen as defined e.g. in the 'flashfile.xml' file. Every file included in the CAB that is not listed in the associated 'flashfile.xml' will be totally ignored during the fastboot upgrade procedure.

Update method: qmi-pdc

If the device supports the 'qmi-pdc' update method, the contents of the CAB file should include files named as 'mcfg.*.mbn' which will be treated as MCFG configuration files to download into the device using the Persistent Device Configuration QMI service.

If a device supports both 'fastboot' and 'qmi-pdc' methods, the fastboot operation will always be run before the QMI operation, so that e.g. the full partition where the MCFG files are stored can be wiped out before installing the new ones.