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authorJacob McDonnell <jacob@jacobmcdonnell.com>2026-04-25 19:55:43 -0400
committerJacob McDonnell <jacob@jacobmcdonnell.com>2026-04-25 19:55:43 -0400
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docs: Added All FreeBSD Manuals
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+<table class="head">
+ <tr>
+ <td class="head-ltitle">USFS(4)</td>
+ <td class="head-vol">Device Drivers Manual</td>
+ <td class="head-rtitle">USFS(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">usfs</code> &#x2014; <span class="Nd">USB device
+ side support for bulk only transport mass storage</span></p>
+</section>
+<section class="Sh">
+<h1 class="Sh" id="SYNOPSIS"><a class="permalink" href="#SYNOPSIS">SYNOPSIS</a></h1>
+<p class="Pp">To compile this driver into the kernel, place the following lines
+ in your kernel configuration file:</p>
+<div class="Bd Pp Bd-indent"><code class="Cd">device usb</code>
+<br/>
+<code class="Cd">device usfs</code></div>
+<p class="Pp">Alternatively, to load the driver as a module at boot time, place
+ the following line in <a class="Xr">loader.conf(5)</a>:</p>
+<div class="Bd Pp Bd-indent Li">
+<pre>usfs_load=&quot;YES&quot;</pre>
+</div>
+</section>
+<section class="Sh">
+<h1 class="Sh" id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">DESCRIPTION</a></h1>
+<div class="Bf Sy">This driver is obsolete. Users are advised to use
+ <a class="Xr">cfumass(4)</a> instead.</div>
+<p class="Pp">The <code class="Nm">usfs</code> driver provides support for
+ emulating an USB mass storage device when the USB stack is activated in USB
+ device side mode (the <a class="Xr">usb_template(4)</a> module is loaded and
+ the <var class="Va">hw.usb.template</var> sysctl is set to 0).</p>
+<p class="Pp">Upon attach the driver creates a RAM disk which can be read and
+ written.</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">cfumass(4)</a>, <a class="Xr">umass(4)</a>,
+ <a class="Xr">usb(4)</a>, <a class="Xr">usb_template(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">usfs</code> driver appeared in
+ <span class="Ux">FreeBSD 8.0</span>.</p>
+</section>
+</div>
+<table class="foot">
+ <tr>
+ <td class="foot-date">May 17, 2018</td>
+ <td class="foot-os">FreeBSD 15.0</td>
+ </tr>
+</table>