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fab3ee97c7
fwupd/plugins/modem-manager
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Aleksander Morgado fab3ee97c7 modem-manager: make sure the correct interface number is used for QMI 
The upgrade process requires that the USB interface layout is not
changed between upgrades, something that we require for AT and we also
require now for QMI. We store the USB interface number of the QMI port
as soon as the device is probed, and we use it to match the interface
number once the Udev based device is created.

squash! modem-manager: make sure the correct interface number is used for QMI
2020-11-29 07:08:05 +00:00
..
fu-mm-device.c modem-manager: make sure the correct interface number is used for QMI 2020-11-29 07:08:05 +00:00
fu-mm-device.h modem-manager: make sure the correct interface number is used for QMI 2020-11-29 07:08:05 +00:00
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 modem-manager: udev monitoring only if device switches layout 2020-11-29 07:08:05 +00:00
fu-qmi-pdc-updater.c modem-manager: add support for compiling libqmi-glib 1.26.0 and later 2020-06-23 15:21:09 -05:00
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 Revert "trivial: add Vendor ID into Modem manager devices" 2020-06-23 07:57:22 +01:00
README.md Add external interface messages 2020-10-26 12:05:20 -05:00

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 Protocol: com.google.fastboot

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.

Update protocol: com.qualcomm.qmi_pdc

External interface access

This plugin requires read/write access to /dev/bus/usb.