[alsa-devel] Exposing control of my device

Jon Smirl jonsmirl at gmail.com
Tue Jul 29 04:29:41 CEST 2008

My device has 220 registers, some of these are quite long (32 bytes)
and I have split them up into multiple 32b pseudo registers.  That
results in about 300 registers for a TAS5504 and 450 for a TAS5508.

A large number of these registers are for BiQuads, DRC, loudness, etc.
They're not general purpose ALSA functions. What is an efficient way
to expose several hundred registers of this class? Making
snd_kcontrols for all of them seems pretty inefficient.

Is there some generic way to do register access from user space that I
haven't found yet? Or should I make two special snd_kcontrols, one for
read register and write register?

Jon Smirl
jonsmirl at gmail.com

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