Hello,

this happens in [1]. You can also call snd_pcm_hw_params_set_buffer_size() 
before snd_pcm_hw_params() (that's probably better?), it always results in (-
EINVAL).

The google-answers did not help. Any idea? In my case, the buffer size is 256, 
but it also fails is I use 32768.

Thanks on advance!
- Johannes

[1] 
https://github.com/zynaddsubfx/zynaddsubfx/blob/master/src/Nio/AlsaEngine.cpp#L331-L335


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