Hello, I'm doing much better with ALSA now that i spent a coule of days messing with code. I've got both direct MMAP PCM playback and a fallback using normal write access with no problems. However, i've just written in asyncronous notification support and found that if i use the SND_PCM_ASYNC flag in snd_pcm_open() and then setup my callback function with snd_async_add_pcm_handler(), then the callback function is not called! When i remove the SND_PCM_ASYNC flag it works fine, so is this flag/mode redundant?
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