Re: [PATCH RFC] Bluetooth: Add generic support for vendor HCI frames

Hi Zijun,

On Tue, Jul 21, 2026 at 3:40 PM Zijun Hu <[email protected]> wrote:
>
> On 7/21/2026 10:22 PM, Luiz Augusto von Dentz wrote:
> >> Could you please give me a clear direction
> >> Solution A or is_vendor()?
> > There might be a simpler approach, just consider anything other then
> > the known packets a vendor packet, so it is automatically stamped with
> > HCI_VENDOR_PKT then push it back to driver from processing.
>
> For this simpler approach:
> in TX, userspace send data to kernel by 0x31[inidicator] ....
>
> in RX, how does kernel send data to userspace
> by 0xff, 0x34(indicator)....
> OR 0x34(indicator) without 0xff ?

For the user channel I would say it would be better to always include
0xff. That way, it remains agnostic and it won't suddenly match a
different packet type if you change the vendor or something like that.

-- 
Luiz Augusto von Dentz