Re: [PATCH] Revert "Bluetooth: Align minimum encryption key size for LE and BR/EDR connections"

[Marcel Holtmann]

Hi Vasily,

> This reverts commit d5bb334a8e171b262e48f378bd2096c0ea458265.
> 
> This commit breaks some HID devices, see [1] for details
> 
> https://bugzilla.kernel.org/show_bug.cgi?id=203643
> 
> Signed-off-by: Vasily Khoruzhick <anarsoul@xxxxxxxxx>
> Cc: stable@xxxxxxxxxxxxxxx

let me have a look at this. Maybe there is a missing initialization for older HID devices that we need to handle. Do you happen to have the full btmon binary trace from controller initialization to connection attempt for me?

Are both devices Bluetooth 2.1 or later device that are supporting Secure Simple Pairing? Or is one of them a Bluetooth 2.0 or earlier device?

Regards

Marcel