A2DP source as a microphone
If you are filing this issue with a regular release please try master as it might already be fixed. Also test with PulseAudio because if it doesn't work there it's not going to here either.
Bluetooth Radio, Bluetooth Headset, Desktop Environment, Distribution, Version (Bluez, Kernel, and PipeWire): *
Description of Problem: Cannot use A2DP source device as an input unless manually connecting.
How Reproducible: When e.g. phone is connected.
Actual Results: There's no way to make it be an input, it'll play audio to speaker by default.
Expected Results: A way to switch device to input mode and use as a mic. Apps like "microphone playback" on Android can give this functionality. I'm not sure but there might exist A2DP microphones, idk.
Additional Info Eg. Additional Kernel Patches, pw-dump > file (As Attachment Please): I can add support for this as an option when it's considered to be implemented.