c1c2fec6f5
This allows us to show the devices in a GUI with a nice icon. Some of the icon mappings are not perfect and I'll be asking the GNOME designers for some additions to the icon specification. Custom vendor icons can also be specified, and /usr/share/fwupd/icons would be a good place to put them. If vendor icons are used they should show a physical device with the branding, rather than just the vendor logo. |
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|---|---|---|
| .. | ||
| data | ||
| fu-plugin-unifying.c | ||
| lu-common.c | ||
| lu-common.h | ||
| lu-context.c | ||
| lu-context.h | ||
| lu-device-bootloader-nordic.c | ||
| lu-device-bootloader-nordic.h | ||
| lu-device-bootloader-texas.c | ||
| lu-device-bootloader-texas.h | ||
| lu-device-bootloader.c | ||
| lu-device-bootloader.h | ||
| lu-device-peripheral.c | ||
| lu-device-peripheral.h | ||
| lu-device-runtime.c | ||
| lu-device-runtime.h | ||
| lu-device.c | ||
| lu-device.h | ||
| lu-hidpp-msg.c | ||
| lu-hidpp-msg.h | ||
| lu-hidpp.h | ||
| lu-self-test.c | ||
| lu-tool.c | ||
| meson.build | ||
| 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 infomation 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.
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.
Verification
If you do not have Unifying hardware you can emulate writing firmware using:
unifying-tool write file.hex -v --emulate=bootloader-nordic
This can also be used to produce protocol data to the command line to compare against USB dumps. This plugin should interact with the hardware exactly like the Logitech-provided flashing tool, although only a few devices have been tested.
[1] https://www.mousejack.com/ [2] https://pwr.github.io/Solaar/