Aztech Systems AZT2320

modulename: snd-cs4231-lib.ko

and/or

snd-azt2320.ko

configname: CONFIG_SND_AZT2320

Linux Kernel Configuration
└─>Device Drivers
└─>Sound
└─>Advanced Linux Sound Architecture
└─>ISA devices
└─>Aztech Systems AZT2320
In linux kernel since version 2.6.20 (release Date: 2007-02-04)  
Say Y here to include support for soundcards based on the
Aztech Systems AZT2320 chip.

To compile this driver as a module, choose M here: the module
will be called snd-azt2320.

source code:
sound/isa//