Re: [PATCH 2/7] Bluetooth: add a quirk for controllers that hang on Write Current IAC LAP

[Yang Li]

Hi,


> On 11/5/26 10:24, Yang Li wrote:
> > This appears to be an anomaly with the firmware binary. Could you
> > provide the FW version in use? It is logged during Bluetooth driver
> > initialization.
>
> Hi Yang,
>
> the controller reports
>
>   fw_version: date = 09.08, number = 0x15d2

Your firmware bin is outdated; this build is LE-only.

Please test with the latest firmware.

https://lore.kernel.org/all/20261110-upgrade_w155s2_bin-v1-1-4533ba6005cd@xxxxxxxxxxx/


> On that firmware the controller stops answering any HCI command right
> after Write Current IAC LAP, until the chip is power-cycled. If a newer
> firmware fixes this, I am happy to test it.
>
> Best regards,
> Christian K.-D.