Clemens Ladisch wrote: > Timur Tabi wrote: >> 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 >> playback starts. >> >> So I would like to know if ALSA will ever call _hw_params, _prepare, or _trigger >> if playback or capture is currently in process, or will ALSA first call the >> _trigger to stop/pause the driver. > > While a stream is running (after trigger with START), ALSA will only > call the pointer or the trigger (STOP/PAUSE/SUSPEND) callbacks. That's good. > Different streams are not synchronized in any way. (This also applies to > the playback/capture streams of one card.) Ah, I hadn't thought about that. If I'm doing simultaneous capture and playback through the same device, then I can't guarantee that it's disabled. Argh. Thanks. -- Timur Tabi Linux kernel developer at Freescale _______________________________________________ Alsa-devel mailing list Alsa-devel@xxxxxxxxxxxxxxxx http://mailman.alsa-project.org/mailman/listinfo/alsa-devel
