[alsa-devel] Will ALSA ever call _prepare or _hw_params while it's playing?
timur at freescale.com
Wed May 21 17:45:14 CEST 2008
I have an ASoC driver with a _hw_params, _prepare, and _trigger functions. I've
recently discovered that I need to keep one of my devices disabled until
So I would like to know if ALSA will ever call _hw_params, _prepare, or _startup
if playback or capture is currently in process, or will ALSA first call the
_trigger to stop/pause the driver.
If ALSA does stop/pause the driver before changing parameters, then I can safely
assume the device is always disabled during those functions.
Linux kernel developer at Freescale
More information about the Alsa-devel