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+<table class="head">
+ <tr>
+ <td class="head-ltitle">EHCI(4)</td>
+ <td class="head-vol">Device Drivers Manual</td>
+ <td class="head-rtitle">EHCI(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">ehci</code> &#x2014; <span class="Nd">USB
+ Enhanced Host Controller driver</span></p>
+</section>
+<section class="Sh">
+<h1 class="Sh" id="SYNOPSIS"><a class="permalink" href="#SYNOPSIS">SYNOPSIS</a></h1>
+<p class="Pp"><code class="Cd">ehci* at cardbus? function ?</code>
+ <br/>
+ <code class="Cd">ehci* at pci? dev ? function ?</code>
+ <br/>
+ <code class="Cd">usb* at ehci?</code></p>
+</section>
+<section class="Sh">
+<h1 class="Sh" id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">DESCRIPTION</a></h1>
+<p class="Pp">The <code class="Nm">ehci</code> driver provides support for the
+ USB Enhanced Host Controller Interface, which is used by USB 2.0
+ controllers.</p>
+<p class="Pp">EHCI controllers are peculiar in that they can only handle the USB
+ 2.0 protocol. This means that they normally have one or more companion
+ controllers (i.e., <a class="Xr">ohci(4)</a> or <a class="Xr">uhci(4)</a>)
+ handling USB 1.x devices. Consequently each USB connector is electrically
+ connected to two USB controllers. The handling of this is totally automatic,
+ but can be noticed since USB 1.x and USB 2.0 devices plugged in to the same
+ connector appear to connect to different USB busses.</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">cardbus(4)</a>, <a class="Xr">ohci(4)</a>,
+ <a class="Xr">pci(4)</a>, <a class="Xr">uhci(4)</a>,
+ <a class="Xr">usb(4)</a></p>
+</section>
+<section class="Sh">
+<h1 class="Sh" id="HISTORY"><a class="permalink" href="#HISTORY">HISTORY</a></h1>
+<p class="Pp">The <code class="Nm">ehci</code> driver appeared in
+ <span class="Ux">NetBSD 1.6</span>.</p>
+</section>
+<section class="Sh">
+<h1 class="Sh" id="BUGS"><a class="permalink" href="#BUGS">BUGS</a></h1>
+<p class="Pp">The support for hubs that are connected with high speed upstream
+ and low or full speed downstream (i.e., for transaction translators) is
+ limited.</p>
+</section>
+</div>
+<table class="foot">
+ <tr>
+ <td class="foot-date">August 10, 2008</td>
+ <td class="foot-os">NetBSD 10.1</td>
+ </tr>
+</table>