1.\" $NetBSD: obio.4,v 1.10 2017/02/18 22:39:01 wiz Exp $ 2.\" 3.\" Copyright (c) 1997 Colin Wood 4.\" Copyright (c) 2003 Alex Zepeda <zipzippy@sonic.net> 5.\" All rights reserved. 6.\" 7.\" Redistribution and use in source and binary forms, with or without 8.\" modification, are permitted provided that the following conditions 9.\" are met: 10.\" 1. Redistributions of source code must retain the above copyright 11.\" notice, this list of conditions and the following disclaimer. 12.\" 2. Redistributions in binary form must reproduce the above copyright 13.\" notice, this list of conditions and the following disclaimer in the 14.\" documentation and/or other materials provided with the distribution. 15.\" 3. All advertising materials mentioning features or use of this software 16.\" must display the following acknowledgement: 17.\" This product includes software developed by Colin Wood 18.\" for the NetBSD Project. 19.\" This product includes software developed by Alex Zepeda. 20.\" 4. The name of the author may not be used to endorse or promote products 21.\" derived from this software without specific prior written permission. 22.\" 23.\" THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 24.\" IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 25.\" OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 26.\" IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 27.\" INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 28.\" NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 29.\" DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 30.\" THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 31.\" (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 32.\" THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 33.\" 34.Dd February 17, 2017 35.Dt OBIO 4 mac68k 36.Os 37.Sh NAME 38.Nm obio 39.Nd introduction to Macintosh On-Board IO bus support and drivers 40.Sh SYNOPSIS 41.Cd "obio0 at mainbus?" 42.Sh DESCRIPTION 43The 44.Nm 45interface serves as an abstraction used by the autoconfiguration 46system to help find and attach devices (e.g. the Ethernet or disk 47controllers) connected to the Macintosh onboard I/O bus. 48.Sh HARDWARE 49.Nx 50includes machine-dependent 51.Tn On-Board 52drivers, sorted by device type and driver name: 53.Ss SCSI interfaces 54.Bl -tag -width burgundy -offset indent 55.It esp 56NCR 53C9x 57.Tn SCSI 58interfaces. 59.It ncrscsi 60NCR 5380 61.Tn SCSI 62interface. 63.El 64.Ss Disk and tape controllers 65.Bl -tag -width burgundy -offset indent 66.It iwm 67Integrated Woz Machine - Sony based floppy drives. 68.It wdc 69Standard IDE/ATAPI type hard drive controllers. 70.El 71.Ss Network interfaces 72.Bl -tag -width burgundy -offset indent 73.It mc 74Apple MACE ethernet interface. 75.It sn 76Sonic (DP83932, DP83916) based ethernet interfaces. 77.El 78.Ss Serial interfaces 79.Bl -tag -width burgundy -offset indent 80.It zsc 81Zilog 8530 serial communications interfaces. 82.El 83.Ss Audio devices 84.Bl -tag -width burgundy -offset indent 85.It asc 86Apple Sound Chip as found on 68k based Macintosh computers. 87.El 88.Ss Miscellaneous devices 89.Bl -tag -width burgundy -offset indent 90.It adb 91Apple Desktop Bus for keyboards, mice, and other input devices. 92.It intvid 93Internal video hardware. 94.El 95.Sh SEE ALSO 96.Xr adb 4 , 97.Xr asc 4 , 98.Xr esp 4 , 99.Xr intvid 4 , 100.Xr mac68k/autoconf 4 , 101.Xr mac68k/intro 4 , 102.Xr mac68k/iwm 4 , 103.Xr mac68k/zsc 4 , 104.Xr mc 4 , 105.Xr ncrscsi 4 , 106.Xr sn 4 , 107.Xr wdc 4 108.Sh HISTORY 109.Nm 110first appeared in 111.Nx 1.2 . 112