Run ac97 on a system with one or more of the following audio controllers. On Linux, make sure all snd_* modules are unloaded to avoid external interference.

Ensoniq AudioPCI or Sound Blaster PCI (except ES1370/5507)
Sound Blaster Live! or Audigy
Intel, Nvidia or VIA AC'97

On the first stage, audio controller information will be displayed on screen. On the second stage, AC'97 codec registers corresponding to optional features will be probed, and a register dump will be displayed and saved to CODbbddf.BIN where bb=bus, dd=device, f=function where the controller is located.

The optional -s parameter makes the second stage silent, only saving the codec register dump to file, which is useful if multiple audio controllers are being probed at once.

Building

DOS target

Windows: Run wmake from an OpenWatcom "Build Environment" command prompt.
Linux: Run wmake with OpenWatcom tools present in $PATH.

Linux target

Linux: Run make -f Makefile.gcc with a GCC toolchain and development files for libpci installed.