On 2025-09-06, Nathan Koch <[email protected]> wrote: > Hello, > > I received a TX40 uaudio device on Aliexpress. It is working on OpenBSD > as a regular audio device that connects to my bluetooth headphones. Also > works on my phone. > > In OpenBSD it automatically is defaulting to the SBC Headset profile > that requests microphone at a lower bitrate. On my phone it knows i'm > not recording and usees the a2dp aac codec. > > Is there a way to configure the driver so that it doesn't ask for audio > input and uses the highest available codec?
The choice of codec will be down to whatever the device selects, that's on the bluetooth side of things rather than the USB side, USB audio device class doesn't have a way to set that. > 10 Dollar AliExpress. Can't go wrong... fwiw, Creative BT-W3 / BT-W5 allow switching codec by pressing the button (it's not properly documented but double / triple tap do different things). Or BT-W5 also allows configuring via app on Windows and it's supposed to retain that config. -- Please keep replies on the mailing list.
