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Old 08-20-2023, 12:33 PM   #3
kandwo
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Posts: 470
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Join Date: Dec 2020
Device: Kindle Paperwhite 3
Quote:
Originally Posted by pazos View Post
You need to be on the file manager, not on the reader. Then go to Tools -> More tools -> developer options.



Yes. It is easy if the driver is already supported and you just need to register your specific device to use that driver. In that case: https://github.com/koreader/koreader/issues/8482

But hisense is not one of the supported drivers. Assuming your device has an AllWinner SoC you might want to read https://github.com/koreader/android-...her/issues/344

There's no guide for writting new drivers, but the link above contains links to previous driver quests with a happy end

It usually requires you to reverse engineer the part of the framework that does the calls to drive the EPD and document how it behaves under stock.

The only help we can provide happens **after** your work. We write a new driver based on your documentation, do a test build for you and you can check if it works correctly following the guide for supported drivers

New drivers are always a good thing. We have 4 drivers with a few variations and those work on a bunch of devices. A new driver for AllWinner SoC would probably be useful for 10+ different devices.
The Hisense A9 has a Qualcomm Snapdragon 662. I'd expect that to be the same one that many Onyx devices also use. Unfortunately, the Onyx Qualcomm driver doesn't work for e-ink functionality
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