[SRU] [OEM-6.0/OEM-6.1] [PATCH 0/2] Fix mSBC on Realtek Bluetooth USB Controller

[Kai-Heng Feng]

BugLink: https://bugs.launchpad.net/bugs/2007331

[Impact]
When a BT headset is connected Realtek BT USB controller, HFP profile can't play or record sound when mSBC codec is used.

[Fix]
Add a Realtek specific quirk to support mSBC.

[Test]
Connect different headsets to the said controller, HFP can play and record sounds now.
Also verified A2DP profile is unaffected.

[Where problems could occur]
The change is Realtek 8852C specific, so the regression risk is very limited.

Hilda Wu (2):
  Bluetooth: btrtl: Add btrealtek data struct
  Bluetooth: btusb: Ignore zero length of USB packets on ALT 6 for
    specific chip

 drivers/bluetooth/btrtl.c |  7 +++++++
 drivers/bluetooth/btrtl.h | 21 +++++++++++++++++++++
 drivers/bluetooth/btusb.c | 28 ++++++++++++++++++++++++++--
 3 files changed, 54 insertions(+), 2 deletions(-)

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2.34.1