OBIO(4)              OpenBSD Programmer's Manual (Mac68K)              OBIO(4)

NAME
     obio - Mac68k onboard I/O bus device

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 SCSI
     controllers) connected to the Macintosh onboard I/O bus.

     OpenBSD provides support for the following devices:

           asc(4)        Apple Sound Chip on-board audio device
           esp(4)        ESP NCR 53c96 on-board SCSI interface
           macfb(4)      Macintosh frame buffers
           mc(4)         Am79C940 (MACE) on-board Ethernet device
           ncrscsi(4)    NCR 5380 on-board SCSI interface
           sbc(4)        NCR 5380 on-board SCSI interface
           sn(4)         SONIC-based Ethernet device
           zsc(4)        Zilog 8530 (ZSCC) serial communications driver

SEE ALSO
     adb(4), intro(4), mainbus(4)

HISTORY
     The obio first appeared in OpenBSD 2.0.

OpenBSD 4.7                      May 31, 2007                                1
