On 8/1/2024 3:17 AM, Wesley Cheng wrote:
With USB audio offloading, an audio session is started from the ASoC platform sound card and PCM devices. Likewise, the USB SND path is still readily available for use, in case the non-offload path is desired. In order to prevent the two entities from attempting to use the USB bus, introduce a flag that determines when either paths are in use.
How can this happen? Can you provide some example with list of devices and which one should block the other? If I recall correctly devices are already exclusive unless you support substreams which ASoC does not at the moment.
