CONFIG_ASP834x is not available for thedefaultarchitecture x86.
Result is shown for architecture powerpc

Analogue & Micro ASP 834x

modulename: asp834x.ko

configname: CONFIG_ASP834x

Linux Kernel Configuration
└─>83xx-based boards
└─>Analogue & Micro ASP 834x
In linux kernel since version 2.6.27 (release Date: 2008-10-09)  
This enables support for the Analogue & Micro ASP 83xx
board.

source code: