Hi, on a embedded device which is using the qca9377 BT chip I like to use Bluetooth classic with the BR and EDR mode. For some reason i have to ensure that the 8DPSK modulation type is not used. For that reason i have to disable the ACL frame types 3-DH1, 3-DH3 and 3-DH5 on my embedded device. The mentioned ACL frame types above are related to the 3Mbit/s EDR mode. So my goal is to switch off the 3Mbit's EDR mode without disabling the 2Mbit's EDR mode. I already tried to switch off this ACL frame types with the deprecated hciconfig tool of Bluez version 5.50, but without success. (hciconfig -a hci0 ptype DM1,DM3,DM5,DH1,DH3,DH5,2-DH1,2-DH3,2-DH5) After a WireShark trace of the pairing process there was still the "EDR ACL 3 Mbps Mode": flag "true" in the "Read Remote Supported Features" response . So is it possible to switch off the 3 Mbit/s EDR mode on the qca9377 BT-Chip? Best regards, Peter
