Re: [PATCH] Bluetooth: msft: add a bluetooth parameter, msft_enable

On Thu, Aug 12, 2021 at 1:37 PM Koba Ko [off-list ref] wrote:

On Thu, Aug 12, 2021 at 1:29 PM Marcel Holtmann [off-list ref] wrote:

quoted

Hi Koba,

quoted

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 <redacted>
---
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

quoted

Regards

Marcel