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authorJacob McDonnell <jacob@jacobmcdonnell.com>2026-04-25 19:55:15 -0400
committerJacob McDonnell <jacob@jacobmcdonnell.com>2026-04-25 19:55:15 -0400
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+<table class="head">
+ <tr>
+ <td class="head-ltitle">INTRO(4)</td>
+ <td class="head-vol">Device Drivers Manual (macppc)</td>
+ <td class="head-rtitle">INTRO(4)</td>
+ </tr>
+</table>
+<div class="manual-text">
+<section class="Sh">
+<h1 class="Sh" id="NAME"><a class="permalink" href="#NAME">NAME</a></h1>
+<p class="Pp"><code class="Nm">intro</code> &#x2014;
+ <span class="Nd">introduction to macppc special files and hardware
+ support</span></p>
+</section>
+<section class="Sh">
+<h1 class="Sh" id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">DESCRIPTION</a></h1>
+<p class="Pp">This section describes the special files, related driver
+ functions, and networking support available in the system. In this part of
+ the manual, the SYNOPSIS section of each configurable device gives a sample
+ specification for use in constructing a system description for the
+ <a class="Xr">config(1)</a> program. The DIAGNOSTICS section lists messages
+ which may appear on the console and/or in the system error log
+ <span class="Pa">/var/log/messages</span> due to errors in device operation;
+ see <a class="Xr">syslogd(8)</a> for more information.</p>
+<p class="Pp">This section contains both devices which may be configured into
+ the system and network related information. The networking support is
+ introduced in <a class="Xr">netintro(4)</a>.</p>
+</section>
+<section class="Sh">
+<h1 class="Sh" id="MACPPC_DEVICE_SUPPORT"><a class="permalink" href="#MACPPC_DEVICE_SUPPORT">MACPPC
+ DEVICE SUPPORT</a></h1>
+<p class="Pp">This section describes the hardware supported on the Power
+ Macintosh. Software support for these devices comes in two forms. A hardware
+ device may be supported with a character or block
+ <a class="permalink" href="#device"><i class="Em" id="device">device
+ driver</i></a>, or it may be used within the networking subsystem and have a
+ <a class="permalink" href="#network"><i class="Em" id="network">network
+ interface driver</i></a>. Block and character devices are accessed through
+ files in the file system of a special type; see <a class="Xr">mknod(8)</a>.
+ Network interfaces are indirectly accessed through the interprocess
+ communication facilities provided by the system; see
+ <a class="Xr">socket(2)</a>.</p>
+<p class="Pp">A hardware device is identified to the system at configuration
+ time and the appropriate device or network interface driver is then compiled
+ into the system. When the resultant system is booted, the autoconfiguration
+ facilities in the system probe for the device and, if found, enable the
+ software support for it. If a device does not respond at autoconfiguration
+ time it is not accessible at any time afterwards. To enable a device which
+ did not autoconfigure, the system will have to be rebooted.</p>
+<p class="Pp">The autoconfiguration system is described in
+ <a class="Xr">macppc/autoconf(4)</a>. A list of the supported devices is
+ given below.</p>
+</section>
+<section class="Sh">
+<h1 class="Sh" id="SEE_ALSO"><a class="permalink" href="#SEE_ALSO">SEE
+ ALSO</a></h1>
+<p class="Pp"><a class="Xr">config(1)</a>, <a class="Xr">gem(4)</a>,
+ <a class="Xr">macppc/autoconf(4)</a>, <a class="Xr">macppc/awacs(4)</a>,
+ <a class="Xr">macppc/bm(4)</a>, <a class="Xr">mc(4)</a>,
+ <a class="Xr">tlp(4)</a></p>
+</section>
+<section class="Sh">
+<h1 class="Sh" id="HISTORY"><a class="permalink" href="#HISTORY">HISTORY</a></h1>
+<p class="Pp">The macppc <code class="Nm">intro</code> man page first appeared
+ in <span class="Ux">NetBSD 1.5.1</span>, based on the
+ <span class="Ux">NetBSD</span>/mac68k <a class="Xr">macppc/intro(4)</a>.</p>
+</section>
+<section class="Sh">
+<h1 class="Sh" id="LIST_OF_DEVICES"><a class="permalink" href="#LIST_OF_DEVICES">LIST
+ OF DEVICES</a></h1>
+<p class="Pp">The devices listed below are supported in this incarnation of the
+ system. Devices are indicated by their functional interface. Not all
+ supported devices are listed.</p>
+<p class="Pp">PCMCIA devices are supported through the
+ <a class="Xr">pcmcia(4)</a> bus and associated devices.</p>
+<p class="Pp">Cardbus devices are supported through the
+ <a class="Xr">cardbus(4)</a> bus and associated devices.</p>
+<p class="Pp">USB devices are supported through the <a class="Xr">usb(4)</a> bus
+ and associated devices.</p>
+<p class="Pp">Additionally, the following specific devices are supported:</p>
+<div class="Bd-indent">
+<dl class="Bl-tag Bl-compact">
+ <dt id="adb"><a class="permalink" href="#adb"><i class="Em">adb</i></a></dt>
+ <dd>Apple Desktop Bus event interface.</dd>
+ <dt id="awacs"><a class="permalink" href="#awacs"><i class="Em">awacs</i></a></dt>
+ <dd>Audio Waveform Amplifier and Converter &#x2014; Apple Sound Chip
+ (supported systems include 603 and 604 based machines, and Open Firmware 3
+ based machines).</dd>
+ <dt id="bm"><a class="permalink" href="#bm"><i class="Em">bm</i></a></dt>
+ <dd>BMac Ethernet.</dd>
+ <dt id="de"><a class="permalink" href="#de"><i class="Em">de</i></a></dt>
+ <dd>DECchip 21x4x based Ethernet cards (see also
+ <a class="Xr">tlp(4)</a>).</dd>
+ <dt id="esp"><a class="permalink" href="#esp"><i class="Em">esp</i></a></dt>
+ <dd>NCR 53C9x built-in SCSI interface.</dd>
+ <dt id="gm"><a class="permalink" href="#gm"><i class="Em">gm</i></a></dt>
+ <dd>GMac Ethernet.</dd>
+ <dt id="kmem"><a class="permalink" href="#kmem"><i class="Em">kmem</i></a></dt>
+ <dd>kernel virtual memory.</dd>
+ <dt id="mc"><a class="permalink" href="#mc"><i class="Em">mc</i></a></dt>
+ <dd>MACE Ethernet.</dd>
+ <dt id="mem"><a class="permalink" href="#mem"><i class="Em">mem</i></a></dt>
+ <dd>physical memory.</dd>
+ <dt id="mesh"><a class="permalink" href="#mesh"><i class="Em">mesh</i></a></dt>
+ <dd>MESH built-in SCSI interface (most Old World machines up to the 1999
+ series of G3 PowerBooks).</dd>
+ <dt id="nvram"><a class="permalink" href="#nvram"><i class="Em">nvram</i></a></dt>
+ <dd>NVRAM access.</dd>
+ <dt id="ofb"><a class="permalink" href="#ofb"><i class="Em">ofb</i></a></dt>
+ <dd>PCI based frame buffer with Open Firmware support.</dd>
+ <dt id="openfirm"><a class="permalink" href="#openfirm"><i class="Em">openfirm</i></a></dt>
+ <dd>Open Firmware access.</dd>
+ <dt id="tlp"><a class="permalink" href="#tlp"><i class="Em">tlp</i></a></dt>
+ <dd>DECchip 21x4x based Ethernet cards.</dd>
+ <dt id="wdc"><a class="permalink" href="#wdc"><i class="Em">wdc</i></a></dt>
+ <dd>Standard on-board IDE controller.</dd>
+ <dt id="zsc"><a class="permalink" href="#zsc"><i class="Em">zsc</i></a></dt>
+ <dd>Zilog Z8530 built-in serial interface.</dd>
+</dl>
+</div>
+</section>
+</div>
+<table class="foot">
+ <tr>
+ <td class="foot-date">February 17, 2017</td>
+ <td class="foot-os">NetBSD 10.1</td>
+ </tr>
+</table>