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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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+<table class="head">
+ <tr>
+ <td class="head-ltitle">UBTBCMFW(4)</td>
+ <td class="head-vol">Device Drivers Manual</td>
+ <td class="head-rtitle">UBTBCMFW(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">ubtbcmfw</code> &#x2014;
+ <span class="Nd">Firmware driver for Broadcom BCM2033 chip based Bluetooth
+ USB devices</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 line
+ in your kernel configuration file:</p>
+<div class="Bd Pp Bd-indent"><code class="Cd">device ubtbcmfw</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>ubtbcmfw_load=&quot;YES&quot;</pre>
+</div>
+</section>
+<section class="Sh">
+<h1 class="Sh" id="DESCRIPTION"><a class="permalink" href="#DESCRIPTION">DESCRIPTION</a></h1>
+<p class="Pp">The <code class="Nm">ubtbcmfw</code> is a firmware driver for
+ Broadcom BCM2033 chip based Bluetooth USB devices. It provides minimal
+ access to the parts of the device required to download firmware.</p>
+<p class="Pp">The <code class="Nm">ubtbcmfw</code> driver creates three fixed
+ endpoint device nodes.</p>
+<p class="Pp">The control transfers can only happen on the control endpoint
+ which is always endpoint 0. Control requests are issued by
+ <a class="Xr">ioctl(2)</a> calls.</p>
+<p class="Pp">Only incoming transfers are supported on an interrupt endpoint. To
+ perform I/O on an interrupt endpoint, <a class="Xr">read(2)</a> should be
+ used. All I/O operations on an interrupt endpoint are unbuffered. Interrupt
+ endpoint is always endpoint 1.</p>
+<p class="Pp">Only outgoing bulk transfers are supported on a bulk endpoint. To
+ perform I/O on a bulk endpoint, <a class="Xr">write(2)</a> should be used.
+ All I/O operations on a bulk endpoint are unbuffered. Outgoing bulk endpoint
+ is always endpoint 2.</p>
+<p class="Pp">The control endpoint (endpoint 0) handles the following
+ <a class="Xr">ioctl(2)</a> calls:</p>
+<dl class="Bl-tag">
+ <dt id="USB_GET_DEVICE_DESC"><a class="permalink" href="#USB_GET_DEVICE_DESC"><code class="Dv">USB_GET_DEVICE_DESC</code></a>
+ (<var class="Vt">usb_device_descriptor_t</var>)</dt>
+ <dd>Return the device descriptor.</dd>
+</dl>
+</section>
+<section class="Sh">
+<h1 class="Sh" id="FILES"><a class="permalink" href="#FILES">FILES</a></h1>
+<dl class="Bl-tag Bl-compact">
+ <dt><span class="Pa">/dev/ubtbcmfw</span><var class="Ar">N</var><span class="Pa">.</span><var class="Ar">EE</var></dt>
+ <dd>Endpoint <var class="Ar">EE</var> of device <var class="Ar">N</var>.</dd>
+</dl>
+</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">ng_ubt(4)</a>, <a class="Xr">ugen(4)</a>,
+ <a class="Xr">usb(4)</a>, <a class="Xr">bcmfw(8)</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">ubtbcmfw</code> driver was implemented in
+ <span class="Ux">FreeBSD 5.0</span>.</p>
+</section>
+<section class="Sh">
+<h1 class="Sh" id="AUTHORS"><a class="permalink" href="#AUTHORS">AUTHORS</a></h1>
+<p class="Pp"><span class="An">Maksim Yevmenkin</span>
+ &lt;<a class="Mt" href="mailto:m_evmenkin@yahoo.com">m_evmenkin@yahoo.com</a>&gt;</p>
+</section>
+<section class="Sh">
+<h1 class="Sh" id="BUGS"><a class="permalink" href="#BUGS">BUGS</a></h1>
+<p class="Pp">Most likely. Please report if found.</p>
+</section>
+</div>
+<table class="foot">
+ <tr>
+ <td class="foot-date">November 22, 2006</td>
+ <td class="foot-os">FreeBSD 15.0</td>
+ </tr>
+</table>