SoC AC97 Audio support for e800

modulename: snd-soc-e800.ko

configname: CONFIG_SND_PXA2XX_SOC_E800

Linux Kernel Configuration
└─>Device Drivers
└─>Sound card support
└─>Advanced Linux Sound Architecture
└─>ALSA for SoC audio support
└─>SoC AC97 Audio support for e800
In linux kernel since version 2.6.25 (release Date: 2008-04-16)  
Say Y if you want to add support for SoC audio on the
Toshiba e800 PDA

source code:
sound/soc//pxa/