MCA support

modulename: mca_32.ko

configname: CONFIG_MCA

Linux Kernel Configuration
└─>Bus options (PCI etc.)
└─>MCA support
In linux kernel since version 2.6.12  
MicroChannel Architecture is found in some IBM PS/2 machines and
laptops. It is a bus system similar to PCI or ISA. See
Documentation/mca.txt (and especially the web page given
there) before attempting to build an MCA bus kernel.

source code:
depends
CONFIG_X86_32