OBIO(4)

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

SYNOPSIS
obio0 at pci? dev ? function ?

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.

mesh
    Apple Macintosh Enhanced SCSI Hardware SCSI interfaces.

  Disk and tape controllers

wdc Standard IDE/ATAPI type hard drive controllers.

mediabay
    Standard IDE/ATAPI type CD-ROM drive controllers in PowerBooks.

  Network interfaces

bm  Apple BMac ethernet interface.

mc  Apple MACE ethernet interface.

gem GMAC ethernet interface.

wi  WaveLAN/IEEE and PRISM-II 802.11 wireless interfaces.

  Serial interfaces

zsc Zilog 8530 serial communications interfaces.

  Audio devices

awacs
    Apple's ‘audio waveform amplifier and converter for sound’ audio device found on most macppc models. May not work on several G4 and iBook models.

  Miscellaneous devices

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

nvram
    Placeholder device for the persistent system settings.

SEE ALSO
adb(4), autoconf(4), awacs(4), bm(4), esp(4), gem(4), intro(4), mc(4), mediabay(4), mesh(4), wdc(4), wi(4), zsc(4)

HISTORY
obio first appeared in NetBSD 1.2.