proxmox-mirrors/fwupd
1
0
Fork 0
mirror of https://git.proxmox.com/git/fwupd synced 2025-07-27 07:52:24 +00:00
Code Issues Actions Packages Projects Releases Wiki Activity
cfd1f2f42a
fwupd/plugins/logitech-hidpp
History
Richard Hughes 2e1245728f Call the superclass directly from subclassed devices 
This allows a device subclass to call the parent method after doing an initial
action, or even deliberately not call the *generic* parent method at all.

It also simplifies the plugins; you no longer have to remember what the plugin
is deriving from and accidentally clobber the wrong superclass method.
2021-02-18 16:18:34 +00:00
..
data Rename unifying plugin to logitech-hidpp (Fixes: #1329) 2019-11-04 13:35:36 -06:00
fu-logitech-hidpp-bootloader-nordic.c Only include the start year in the copyright header 2021-01-07 14:48:16 +00:00
fu-logitech-hidpp-bootloader-nordic.h Only include the start year in the copyright header 2021-01-07 14:48:16 +00:00
fu-logitech-hidpp-bootloader-texas.c Only include the start year in the copyright header 2021-01-07 14:48:16 +00:00
fu-logitech-hidpp-bootloader-texas.h Only include the start year in the copyright header 2021-01-07 14:48:16 +00:00
fu-logitech-hidpp-bootloader.c Call the superclass directly from subclassed devices 2021-02-18 16:18:34 +00:00
fu-logitech-hidpp-bootloader.h Only include the start year in the copyright header 2021-01-07 14:48:16 +00:00
fu-logitech-hidpp-common.c Only include the start year in the copyright header 2021-01-07 14:48:16 +00:00
fu-logitech-hidpp-common.h Only include the start year in the copyright header 2021-01-07 14:48:16 +00:00
fu-logitech-hidpp-hidpp-msg.c Only include the start year in the copyright header 2021-01-07 14:48:16 +00:00
fu-logitech-hidpp-hidpp-msg.h Only include the start year in the copyright header 2021-01-07 14:48:16 +00:00
fu-logitech-hidpp-hidpp.c Only include the start year in the copyright header 2021-01-07 14:48:16 +00:00
fu-logitech-hidpp-hidpp.h Only include the start year in the copyright header 2021-01-07 14:48:16 +00:00
fu-logitech-hidpp-peripheral.c Call the superclass directly from subclassed devices 2021-02-18 16:18:34 +00:00
fu-logitech-hidpp-peripheral.h Only include the start year in the copyright header 2021-01-07 14:48:16 +00:00
fu-logitech-hidpp-runtime.c Call the superclass directly from subclassed devices 2021-02-18 16:18:34 +00:00
fu-logitech-hidpp-runtime.h Only include the start year in the copyright header 2021-01-07 14:48:16 +00:00
fu-logitech-hidpp-self-test.c Only include the start year in the copyright header 2021-01-07 14:48:16 +00:00
fu-plugin-logitech-hidpp.c Use FWUPD_COMPILATION define to indicate an in tree build 2021-01-22 14:01:25 -06:00
logitech-hidpp.quirk Rename unifying plugin to logitech-hidpp (Fixes: #1329) 2019-11-04 13:35:36 -06:00
meson.build Move the plugin build logic to the plugins themselves 2021-02-18 14:46:20 +00:00
README.md Add external interface messages 2020-10-26 12:05:20 -05:00

README.md

Logitech HID 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

Vendor ID Security

The vendor ID is set from the vendor ID, in this instance set to USB:0x046D in bootloader and HIDRAW:0x046D in runtime mode.

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-Solaar.github.io/Solaar/

External interface access

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