| AC97(4) | Device Drivers Manual | AC97(4) | 
ac97 —
Unlike many drivers, the ac97 driver does
    not appear in the configuration file. Instead, the driver is automatically
    attached by the drivers that require it.
ac97 driver does not keep track of the current user
  settings and instead relies on the hardware to do this.
The ac97 driver could do more to detect
    mixer channels that don't work and cull them from the list.
| October 7, 1999 | NetBSD 10.0 |