On 1/28/20 4:43 AM, Cezary Rojewski wrote:
This set of patches achieves few goals in order to enable data probing feature for audio DSP.
I am fine with this update, but I just thought of an obscure case and couldn't find the answer on my own.
These probe points are enabled/disabled with direct IPC calls. Once those routines have been called, I don't see any context maintained by the driver (other than the stream tag for the extractor).
So here's my question: what happens if there is a pm_runtime or system suspend after playing with debugfs to configure those probes? Would all context be lost and the user needs to re-enable all probes?
Also what happens if there is a system suspend while an extractor is opened, would it be restored? I imagine a pm_runtime suspend is not possible since the device is active then.
I'd be fine if this was handled in a follow-up series, just want to see if my question is relevant and if yes what it takes to support suspend.
Thanks -Pierre _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx https://mailman.alsa-project.org/mailman/listinfo/alsa-devel
