How to use sound driver in my application?

Hi everyone,

I have already hung up sound card ENS1371 in uclinux but how to use it. I have no idea because i am beginner in linux. I search some documents in internet but all documents are in linux platform. I don't find many nodes about sound card in my filesystem such as "/dev/snd/controlC0" , "dev/snd/pcmc0d0c" and so on. I try to add them(@controlC0,c,116,0 ...) into ROMfs in NiosII IDE but i don't know that is correct way. Moreover, how to appear some nodes(snd-midi , snd-pcm...) about sound card in /proc. Have anybody can provide some ideas to me?

Appreciation for any suggestions.

Sam