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fwupd/plugins/unifying
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Richard Hughes 5079f26f0e Never guess the version format from the version string 
This leads to madness, as some formats are supersets of the detected types,
e.g. 'intel-me' is detected as 'quad' and 'bcd' is detected as 'pair'.

Where the version format is defined in a specification or hardcoded in the
source use a hardcoded enum value, otherwise use a quirk override.

Additionally, warn if the version does not match the defined version format
2019-04-30 09:25:41 +01:00
..
data Add support for Logitech Unifying devices 2016-12-12 15:36:53 +00:00
fu-plugin-unifying.c Export the version-format to clients 2019-04-30 09:25:41 +01:00
fu-unifying-bootloader-nordic.c Never guess the version format from the version string 2019-04-30 09:25:41 +01:00
fu-unifying-bootloader-nordic.h Use '#pragma once' to avoid a lot of boilerplate 2019-02-09 08:42:30 -06:00
fu-unifying-bootloader-texas.c Never guess the version format from the version string 2019-04-30 09:25:41 +01:00
fu-unifying-bootloader-texas.h Use '#pragma once' to avoid a lot of boilerplate 2019-02-09 08:42:30 -06:00
fu-unifying-bootloader.c trivial: Add fu_common_dump_raw() 2018-12-05 15:09:56 +00:00
fu-unifying-bootloader.h Use '#pragma once' to avoid a lot of boilerplate 2019-02-09 08:42:30 -06:00
fu-unifying-common.c Add shared functionality for reading and writing with O_NONBLOCK 2018-12-06 14:07:02 +00:00
fu-unifying-common.h Use '#pragma once' to avoid a lot of boilerplate 2019-02-09 08:42:30 -06:00
fu-unifying-hidpp-msg.c unifying: Use the new daemon-provided functionality 2018-09-07 16:22:38 +01:00
fu-unifying-hidpp-msg.h Use '#pragma once' to avoid a lot of boilerplate 2019-02-09 08:42:30 -06:00
fu-unifying-hidpp.c Add shared functionality for reading and writing with O_NONBLOCK 2018-12-06 14:07:02 +00:00
fu-unifying-hidpp.h Use '#pragma once' to avoid a lot of boilerplate 2019-02-09 08:42:30 -06:00
fu-unifying-peripheral.c Never guess the version format from the version string 2019-04-30 09:25:41 +01:00
fu-unifying-peripheral.h Use '#pragma once' to avoid a lot of boilerplate 2019-02-09 08:42:30 -06:00
fu-unifying-runtime.c Never guess the version format from the version string 2019-04-30 09:25:41 +01:00
fu-unifying-runtime.h Use '#pragma once' to avoid a lot of boilerplate 2019-02-09 08:42:30 -06:00
fu-unifying-self-test.c unifying: Use the new daemon-provided functionality 2018-09-07 16:22:38 +01:00
meson.build trivial: Fix potential compile failures for high -j values 2019-02-01 16:52:16 +00:00
README.md Fix some typos spotted using codespell 2019-04-08 12:47:53 +01:00
unifying.quirk trivial: Add InstallDuration values for Unifying devices 2018-11-15 15:43:43 +00:00

README.md

Unifying Support

Introduction

This plugin can flash the firmware on Logitech Unifying dongles, both the Nordic (U0007) device and the Texas Instruments (U0008) version.

This plugin will not work with the different "Nano" dongle (U0010) as it does not use the Unifying protocol.

Some bootloader protocol information was taken from the Mousejack[1] project, specifically logitech-usb-restore.py and unifying.py. Other documentation was supplied by Logitech.

Additional constants were taken from the Solaar[2] project.

Firmware Format

The daemon will decompress the cabinet archive and extract a firmware blob in a vendor-specific format that appears to be a subset of the Intel HEX format.

This plugin supports the following protocol IDs:

  • com.logitech.unifying
  • com.logitech.unifyingsigned

GUID Generation

These devices use the standard USB DeviceInstanceId values when in DFU mode:

  • USB\VID_046D&PID_AAAA&REV_0001
  • USB\VID_046D&PID_AAAA
  • USB\VID_046D

When in runtime mode, the HID raw DeviceInstanceId values are used:

  • HIDRAW\VEN_046D&DEV_C52B
  • HIDRAW\VEN_046D

Design Notes

When a dongle is detected in bootloader mode we detach the hidraw driver from the kernel and use raw control transfers. This ensures that we don't accidentally corrupt the uploading firmware. For application firmware we use hidraw which means the hardware keeps working while probing, and also allows us to detect paired devices.

[1] https://www.mousejack.com/ [2] https://pwr.github.io/Solaar/