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9d3f791727
Until now, the unifying plugin was a 'special snowflake' and did things in very different ways to the other plugins. Refactor each object to derive from either FuUsbDevice or FuUdevDevice, and then remove LuDevice and the LuContext layers.
30 lines
974 B
Markdown
30 lines
974 B
Markdown
Unifying Support
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Introduction
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------------
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This plugin can flash the firmware on Logitech Unifying dongles, both the
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Nordic (U0007) device and the Texas Instruments (U0008) version.
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This plugin will not work with the different "Nano" dongle (U0010) as it does
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not use the Unifying protocol.
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Some bootloader protocol infomation was taken from the Mousejack[1] project,
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specifically logitech-usb-restore.py and unifying.py. Other documentation was
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supplied by Logitech.
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Additional constants were taken from the Solaar[2] project.
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Design Notes
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------------
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When a dongle is detected in bootloader mode we detach the hidraw driver from
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the kernel and use raw control transfers. This ensures that we don't accidentally
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corrupt the uploading firmware. For application firmware we use hidraw which
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means the hardware keeps working while probing, and also allows us to detect
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paired devices.
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[1] https://www.mousejack.com/
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[2] https://pwr.github.io/Solaar/
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