[alsa-devel] Alsa triggering methods

Clemens Ladisch clemens at ladisch.de
Thu May 7 15:38:19 CEST 2015


Andy Ng wrote:
> I am working on a ALSA card driver that handles a DSP instance. The
> problem I have is that the triggering mechanism in ALSA to start a PCM
> has the interrupts disabled, and my dsp framework is actually
> acknowledging the start trigger with an event after 50 microseconds
> time that I can't handle because the IRQs are disabled.

Why must you handle the ACK interrupt from inside the trigger?


Regards,
Clemens


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