[BRLTTY] Latest humanware/APH devices and brltty on Android

[Dave Mielke]

[quoted lines by henk.abma at gmail.com on 2021/10/30 at 14:53 +0200]

>Now I have a user who likes these devices but wants to be able to use a
>BI40X with both the PC and her Android device. I have borrowed a Mantis Q40
>from our local supplier to see what was possible, but it looks like brltty
>doesn't recognize it.

I'm assuming that you mean via Bluetoth since they do work via USB.

As of just a few days ago, they do now work via Bluetooth on Linux. The reason it's only on Linux, so far, is because there's a piece of the required support - Bluetooth HID - that needs to be platform dependent, and that piece hasn't been imlemented yet for Windows and Android.

>According to the supplier, this has something to do with the used protocol
>and changes would have to be made on Android to make support for these
>devices possible.

Yes, that's correct. While support for Windows is possible, and should be added soon, there's a permissions issue on Android. Google, at least so far, only gives access to a device's HID report descriptor to system apps. Even if they decided today to relax this, it'd only eventually show up in Android 12.

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