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<table class="head">
<tr>
<td class="head-ltitle">INTRO(4)</td>
<td class="head-vol">Device Drivers Manual (prep)</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> —
<span class="Nd">introduction to prep 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="PMPPC_DEVICE_SUPPORT"><a class="permalink" href="#PMPPC_DEVICE_SUPPORT">PMPPC
DEVICE SUPPORT</a></h1>
<p class="Pp">This section describes the hardware supported on the PowerPC
Reference Platform machines. 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">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">autoconf(4)</a>,
<a class="Xr">pnpbus(4)</a>, <a class="Xr">prep/nvram(4)</a></p>
</section>
<section class="Sh">
<h1 class="Sh" id="HISTORY"><a class="permalink" href="#HISTORY">HISTORY</a></h1>
<p class="Pp">The prep <code class="Nm">intro</code> man page first appeared in
<span class="Ux">NetBSD 4.0</span>.</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">The pnpbus is a pseudo-bus which is a configuration interface for
certain devices on PReP machines. These devices are defined in the PReP
residual data with configuration information, similar to
<a class="Xr">isapnp(4)</a>. The underlying bus is generally ISA.</p>
<p class="Pp">ISA devices are supported through the <a class="Xr">isa(4)</a> bus
and associated devices.</p>
<p class="Pp">PCI devices are supported through the <a class="Xr">pci(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="com"><a class="permalink" href="#com"><i class="Em">com</i></a></dt>
<dd>serial ports</dd>
<dt id="nvram"><a class="permalink" href="#nvram"><i class="Em">nvram</i></a></dt>
<dd>NVRAM chip</dd>
<dt id="wdc"><a class="permalink" href="#wdc"><i class="Em">wdc</i></a></dt>
<dd>ISA IDE controller</dd>
<dt id="we"><a class="permalink" href="#we"><i class="Em">we</i></a></dt>
<dd>Western Digital/SMC WD80x3 ethernet driver</dd>
<dt id="mcclock"><a class="permalink" href="#mcclock"><i class="Em">mcclock</i></a></dt>
<dd>mc146818 compatible time-of-day clock</dd>
<dt id="mkclock"><a class="permalink" href="#mkclock"><i class="Em">mkclock</i></a></dt>
<dd>Mostek MK48T18 time-of-day chip</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>
|
