Hi Zijun and Tim, I noticed that you have both submitted firmware and NVM files for QCA2066 to linux-firmware. [1][2] I'm working on Linux support for the Lenovo ThinkPad X13s (Windows on Arm, Snapdragon), which has the related WCN6855 controller that uses the same firmware (hpbtfw21.tlv). The current Linux driver is using the generic NVM file (hpnv21.bin) for WCN6855, but connectivity is quite bad and I only get 2-3 meters of range. Switching to the board-specific NVM configuration (hpnv21b.b8c) that came with the Windows driver make all issues go away and the range is really good, but I'm not sure if that file is fully compatible with the firmware used by the Linux driver. Could you help us submit an NVM configuration file for the controller with board id 0x008c to linux-firmware? Bluetooth: hci0: setting up wcn6855 Bluetooth: hci0: QCA Product ID :0x00000013 Bluetooth: hci0: QCA SOC Version :0x400c1211 Bluetooth: hci0: QCA ROM Version :0x00000201 Bluetooth: hci0: QCA Patch Version:0x000038e6 Bluetooth: hci0: QCA controller version 0x12110201 Bluetooth: hci0: QCA Downloading qca/hpbtfw21.tlv Bluetooth: hci0: qca_read_fw_board_id: bid = 8c Bluetooth: hci0: QCA Downloading qca/hpnv21.bin It looks like the NVM files should be updated in lockstep with the firmware so if you could include that board in any future firmware updates too that would be really helpful. Johan [1] https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/commit/qca?id=2ba1beaae0c649ce8a50baecc8df9e81cd524e65 [2] https://git.kernel.org/pub/scm/linux/kernel/git/firmware/linux-firmware.git/commit/qca?id=598f5bd22361d7e92eebe8452d1f8013a1d35b9a
