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I'm not too sure I agree that the spec itself is buggy, certainly the implementations vary wildly from Sony almost doing their own thing to Chinese off the shelf copy pasting whatever makes a noise.

That said I have worked extensively with Bluetooth within Ericsson and while there is a learning curve, I never found the spec to be lacking.

Latest example : https://www.bluetooth.org/DocMan/handlers/DownloadDoc.ashx?d...

Your last sentence is exactly what I was thinking. The problem with BT isn't necessarily on the kernel's bluetooth driver. The spec is buggy and also a lot of makers of bluetooth devices don't implement the spec properly. But the spec itself isn't spectacular to begin with.

A rewrite might simply make it more resilient through changes in the base architecture. However, I know nothing about Linux's bluetooth stack and I assume that it's probably taking into account a lot of those glitches already.

Well, english is not my first language. What I meant probably got lost in translation :)