[linux-audio-user] volume plugin

[olig9 at gmx.de]

Clemens Ladisch wrote:
> Oliver Gerlich wrote:
> 
>>my onboard sound chip (CMedia 9739, on Epox 8RDA3+, with nforce2
>>chipset) doesn't support volume changing in hardware (CMedia's cmaudio
>>driver for OSS does all the volume calculation in software). That means
>>that I'm unable to change the volume  with alsamixer or similar programs.
>>
>>Now my question: is it possible to tell Alsa to change the volume in
>>software? Is there a plugin that does this?
> 
> 
> It would be possible to write such a plugin, but this hasn't been
> done.

Then here are my next questions :)
1.) Is it really possible to get inside a plugin the PCM & Master volume 
settings that are set eg. with alsamixer?
2.) Would it be better to do all this in a new plugin, or better inside 
the existing intel8x0 driver, or inside a new (yet to be written :) 
snd-cmaudio driver, or in another completely different way? I'd be 
willing to spend some time in getting my soundchip to work, but then I 
want to do it right.

Oliver