ofisa —
introduction to machine-independent Open Firmware ISA bus
  support and drivers
ofisa* at mainbus0
XX* at ofisa?
NetBSD includes a machine-independent ISA bus subsystem
  and several machine-independent ISA device drivers. The
  ofisa bus uses Open Firmware to determine how to
  attach devices.
NetBSD includes machine-independent Open Firmware ISA
  drivers, sorted by device type and driver name:
  - wdc
- Standard Western Digital type hard drive controllers: MFM, RLL, ESDI, and
      IDE/ATAPI.
 
  - com
- NS8250-, NS16450-, and NS16550-based serial ports.
- lpt
- Standard ISA parallel port interface.
 
  - cs
- Cirrus Logic Crystal CS8900 Ethernet interfaces.
 
  - ess
- ESS Technology AudioDrive 1788-, 1888-, 1887-, and 888-based sound
    cards.
 
  - joy
- Game (joystick) adapters.
 
The Open Firmware ISA subsystem appeared in NetBSD 1.4.