Re: [PATCH v24 23/34] ALSA: usb-audio: Prevent starting of audio stream if in use

[Wesley Cheng <quic_wcheng@xxxxxxxxxxx>]

Hi Amadeusz,

On 8/6/2024 7:51 AM, Amadeusz Sławiński wrote:
> 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.
>