Hi Pierre,
On 10/17/2023 3:37 PM, Pierre-Louis Bossart wrote:
On 10/17/23 15:00, 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.
If a PCM device is already in use, the check will return an error to
userspace notifying that the stream is currently busy. This ensures that
only one path is using the USB substream.
Signed-off-by: Wesley Cheng <quic_wcheng@xxxxxxxxxxx>
---
sound/usb/card.h | 1 +
sound/usb/pcm.c | 19 +++++++++++++++++--
sound/usb/qcom/qc_audio_offload.c | 15 ++++++++++++++-
should this be split in a generic part and a more specific qcom patch?
Got it.
Thanks
Wesley Cheng
