As mentioned here: Communicating over UART0 with HCI uart BLE dongle (cross post) - #11 by mdcraver
i now added minuart-bt=on to the dt_overlay configuration
I recently spoke to my colleague about the current problems. We then looked at the host-os for something that potentially blocks the serial interface and found:
“ps aux | grep hci”
root 1696 0.0 0.0 1524 88 ? S 11:26 0:00 /usr/bin/hciattach /dev/serial1 bcm43xx 3000000 flow - b8:27:eb:43:ff:18
If this service is running, our application won´t be able to use the Bluetooth device over the serial interface.
Is there a way to disable the service starting the hciattach process?
Am i missing further configuration of the device/ dt_overlays or uart specific stuff?