When My Usb interface working on recording， the sync is not good work. I found every IO will in_io_buffer_frame_size is same， it is not sync to UpdateCurrentZeroTimestamp. So The Audio driver Kit Read opration is not same like Write? What is the way sync with Usb in data?
If only play audio with UpdateCurrentZeroTimestamp, it working fine.
Thanks!
MingJD
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