On Thu, Aug 12, 2021 at 1:37 PM Koba Ko <koba.ko@xxxxxxxxxxxxx> wrote: > > On Thu, Aug 12, 2021 at 1:29 PM Marcel Holtmann <marcel@xxxxxxxxxxxx> wrote: > > > > Hi Koba, > > > > > With Intel AC9560, follow this scenario and can't turn on bt since. > > > 1. turn off BT > > > 2. then suspend&resume multiple times > > > 3. turn on BT > > > > > > Get this error message after turn on bt. > > > [ 877.194032] Bluetooth: hci0: urb 0000000061b9a002 failed to resubmit (113) > > > [ 886.941327] Bluetooth: hci0: Failed to read MSFT supported features (-110) > > > > > > Remove msft from compilation would be helpful. > > > Turn off msft would be also helpful. > > > > > > Because msft is enabled as default and can't turn off without > > > compliation, > > > Introduce a bluetooth parameter, msft_enable, to control. > > > > > > Signed-off-by: Koba Ko <koba.ko@xxxxxxxxxxxxx> > > > --- > > > include/net/bluetooth/hci_core.h | 1 + > > > net/bluetooth/hci_core.c | 16 ++++++++++++++++ > > > net/bluetooth/msft.c | 30 +++++++++++++++++++++++++++++- > > > 3 files changed, 46 insertions(+), 1 deletion(-) > > > > NAK. > > > > This is for the Intel guys to figure out. Otherwise I am going to disable MSFT extension for AC9560 completely. What is your hw_variant for that hardware? > Would you please guide to dump hw_variant? thanks Found it, Bluetooth: hci0: Found Intel DDC parameters: intel/ibt-19-0-1.ddc > > > > Regards > > > > Marcel > >