Hi folks, I've written an implementation of the Android specification for streaming to hearing aids over Bluetooth LE, ASHA[1]. This predates the LE audio specification, and has been supported in hearing aids for a while now, so I think this is worth supporting as these devices should continue to be in use for several years. I've reused the MediaEndpoint1 and MediaTransport1 interfaces at Luiz' suggestion. The flow is slightly different from A2DP and LE Audio in that there isn't really a negotiation step, so the endpoint and transport are both available on connection. Also included is a script to stream arbitrary audio to an ASHA device, which is handy for making sure that the implementation does work. I have tested this against a reference implementation on an onsemi RSL10 board. The current implementation is written with a single device in mind. My plan is to take this to completion along with a PipeWire implementation to expose a single device for playback, and then do a second pass to support a pair of devices. Cheers, Arun [1] https://source.android.com/docs/core/connect/bluetooth/asha Arun Raghavan (5): profiles: Add initial code for an ASHA plugin asha: Implement volume on transport test: Add a script to test ASHA gitignore: Add compile_commands.json gitignore: Add __pycache__ .gitignore | 3 + Makefile.plugins | 5 + configure.ac | 4 + lib/uuid.h | 3 + profiles/audio/asha.c | 835 +++++++++++++++++++++++++++++++++++++ profiles/audio/asha.h | 38 ++ profiles/audio/media.c | 28 ++ profiles/audio/media.h | 2 + profiles/audio/transport.c | 173 +++++++- test/simple-asha | 158 +++++++ 10 files changed, 1247 insertions(+), 2 deletions(-) create mode 100644 profiles/audio/asha.c create mode 100644 profiles/audio/asha.h create mode 100755 test/simple-asha -- 2.45.0
