CONFIG_AC97_BUS_NEW (not configurable)

modulename: ac97.ko

configname: CONFIG_AC97_BUS_NEW

Linux Kernel Configuration
└─>Device Drivers
└─>Sound card support
└─>Advanced Linux Sound Architecture
└─>AC97_BUS_NEW
In linux kernel since version 3.10 (release Date: 2013-06-30)  
This is the new AC97 bus type, successor of AC97_BUS. The ported
drivers which benefit from the AC97 automatic probing should "select"
this instead of the AC97_BUS.
Say Y here if you want to have AC97 devices, which are sound oriented
devices around an AC-Link.

source code: