Force usage of PIO instead of DMA

configname: CONFIG_B43_FORCE_PIO

Linux Kernel Configuration
└─>Device Drivers
└─>Network device support
└─>Wireless LAN
└─>Force usage of PIO instead of DMA
In linux kernel since version 2.6.26 (release Date: 2008-07-13)  
This will disable DMA and always enable PIO instead.

Say N!
This is only for debugging the PIO engine code. You do
_NOT_ want to enable this.