On Fri, 2020-12-18 at 11:43 -0800, Luiz Augusto von Dentz wrote: > Hi Joakim, > > On Fri, Dec 18, 2020 at 10:48 AM Joakim Tjernlund > <Joakim.Tjernlund@xxxxxxxxxxxx> wrote: > > > > There seems to be quite a few USB controllers gaining the BTUSB_WIDEBAND_SPEECH which I guess means HW mSBC but currently there is no way to select this mode. > > Any idea if one could patch the kernel to default to HW mSBC and user apps like bluealsa/pulseaudio would just use it automatically? > > It is in our plan to support HW offloading, but that doesn't mean all > platforms will be supported since that depends on the PCM lines being > connected to BT controller in the first place. Yes, but it would be nice if one could test that easily now, a patch for enabling HW mSBC. You don't need to apply it upstream yet though. Jocke