We are running Linux on pico-imx8mm which has a QCA9377-3 connected for Bluetooth with UART & PCM.
ACL Data and Event Packets are received correctly to the hci_core and we are able to use A2DP without any issue. But we are unable to receive SCO data packets in the case of HSP/HFP.
I have 3 queries regarding this:
1. What is the default routing for SCO data in this chip? HCI UART or PCM pins?
2. Are there any HCI commands that need to be given to enable SCO data over that default interface?
3. Is there a possibility to switch between UART and PCM interfaces for SCO data using any HCI commands?
Thank you in advance for your response.
S S Kartheek Adivi.