[alsa-devel] read function

Gustavo da Silva Serra gustavo.serra at tet.com.br
Fri Jul 11 16:57:33 CEST 2008


    I am trying to understand how aloop interacts with alsa. I 
understand that the interface between alsa and a driver is an audio 
buffer and pointers, offsets inside this buffer. However, I can't 
discover where these pointers are being used. In pcm_lib.c I inserted 
some debug messages in read/write functions, but they are never called. 
My question is: how is that the snd_pcm_readi, for example, from 
libasound reaches the driver.


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