Re: [PATCH v2 1/2] Bluetooth: btbcm: raise ACL priority on Apple Broadcom controllers

[André Eikmeyer]

On Fri, 6 Nov 2026 10:40:58 +0100
Sasha Finkelstein <k@xxxxxxxxxxxxxx> wrote:

> You probably shouldn't, or at least base it on v2, not v3 (that one
> ended up being a bad idea and caused firmware timeouts, so Asahi
> downstream ships something more similar to v2).
> 
> In addition - have your tests included entering and exiting stream
> with an ACL link active? That part always caused problems for me.

Hi Sasha,

I tested both on the BCM4364 (15,1) with 2.4 ghz wifi under load.
Your patch (668d849694ef) and mine, each with a reconnect, plenty of
A2DP stream cycles and profile switches with the ACL link up.

Mine sends 0xfc57 1 ms after connection complete, before AVDTP Open.
Yours right after AVDTP Start. Both complete with success. Neither
needs it again when the stream is left and entered, the priority stays
on the handle. No timeouts with either. The short glitch at each
suspend is the same on both, so it comes from the stream restart I
would guess. Scratching my head now. How you wish me to proceed? 


Andre