OBIO(4)

NAME
obio - introduction to Macintosh On-Board IO bus support and drivers

SYNOPSIS
obio0 at mainbus?

DESCRIPTION
The obio interface serves as an abstraction used by the autoconfiguration system to help find and attach devices (e.g. the Ethernet or disk controllers) connected to the Macintosh onboard I/O bus.

HARDWARE
NetBSD includes machine-dependent On-Board drivers, sorted by device type and driver name:

  SCSI interfaces

esp NCR 53C9x SCSI interfaces.

ncrscsi
    NCR 5380 SCSI interface.

  Disk and tape controllers

iwm Integrated Woz Machine - Sony based floppy drives.

wdc Standard IDE/ATAPI type hard drive controllers.

  Network interfaces

mc  Apple MACE ethernet interface.

sn  Sonic (DP83932, DP83916) based ethernet interfaces.

  Serial interfaces

zsc Zilog 8530 serial communications interfaces.

  Audio devices

asc Apple Sound Chip as found on 68k based Macintosh computers.

  Miscellaneous devices

adb Apple Desktop Bus for keyboards, mice, and other input devices.

intvid
    Internal video hardware.

SEE ALSO
adb(4), asc(4), esp(4), intvid(4), mac68k/autoconf(4), mac68k/intro(4), mac68k/iwm(4), mac68k/zsc(4), mc(4), ncrscsi(4), sn(4), wdc(4)

HISTORY
obio first appeared in NetBSD 1.2.