Date: Mon, 2 Mar 2026 15:06:56 -0800 From: Kevin Oberman <rkoberman@gmail.com> To: FreeBSD Wireless <freebsd-wireless@freebsd.org> Subject: Unable to get Bluetooth to work on main with CSR5810 Message-ID: <CAN6yY1v2f6U8gyemjAdJxbZ5B71Lu2NZbcY5Fmw2uHJ72zABmg@mail.gmail.com>
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For years I have been trying to get Bluetooth to work on my Lenovo T16
AlderLake laptop.It came with a AX201 WiFi/Bluetooth interface and I was
pleased when iBluetooth was supported, but didn't work, so I spent $7 on a
CRS5810 which is claimed to work well on FreeBSD. Unfortunately, I still
see the same problem so I now assume that the problem is me.
When I insert the CSR I get:
ubt1: <vendor 0x0a12 CSR8510 A10, class 224/1, rev 2.00/88.91, addr 4> on
usbus1
This is almost exactly what I see at boot on the AX201. According to
Handbook, I should see something like this:
ubt0: vendor 0x0a12 product 0x0001, rev 1.10/5.25, addr 2
ubt0: Interface 0 endpoints: interrupt=0x81, bulk-in=0x82, bulk-out=0x2
ubt0: Interface 1 (alt.config 5) endpoints: isoc-in=0x83, isoc-out=0x3,
wMaxPacketSize=49, nframes=6, buffer size=294
usbconfig shows:
ugen1.4: <Bluetooth Dongle (HCI mode) Cambridge Silicon Radio, Ltd>
at usbus1, cfg=0 md=HOST spd=FULL (12Mbps) pwr=ON (100mA)
I tried starting it, but it fails with /etc/rc.d/bluetooth: ERROR:
Unable to setup Bluetooth stack
for device ubt1
Can anyone suggest what probably obvious thing I might be missing? I'd
really love to
be able to use my earbuds on this system.
--
Kevin Oberman, Part time kid herder and retired Network Engineer
E-mail: rkoberman@gmail.com
PGP Fingerprint: D03FB98AFA78E3B78C1694B318AB39EF1B055683
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<div dir="ltr"><div><div style="font-family:tahoma,sans-serif;font-size:small" class="gmail_default">For years I have been trying to get Bluetooth to work on my Lenovo T16 AlderLake laptop.It came with a AX201 WiFi/Bluetooth interface and I was pleased when iBluetooth was supported, but didn't work, so I spent $7 on a CRS5810 which is claimed to work well on FreeBSD. Unfortunately, I still see the same problem so I now assume that the problem is me. </div><div style="font-family:tahoma,sans-serif;font-size:small" class="gmail_default"><br></div><div style="font-family:tahoma,sans-serif;font-size:small" class="gmail_default">When I insert the CSR I get:</div><div style="font-family:tahoma,sans-serif;font-size:small" class="gmail_default">ubt1: <vendor 0x0a12 CSR8510 A10, class 224/1, rev 2.00/88.91, addr 4> on usbus1<br><br></div><div style="font-family:tahoma,sans-serif" class="gmail_default"><font size="2">This is almost exactly what I see at boot on the AX201. According to Handbook, I should see something like this:</font></div><div style="font-family:tahoma,sans-serif;font-size:small" class="gmail_default"><pre class="gmail-rouge gmail-highlight"><code>ubt0: vendor 0x0a12 product 0x0001, rev 1.10/5.25, addr 2
ubt0: Interface 0 endpoints: <span class="gmail-nv">interrupt</span><span class="gmail-o">=</span>0x81, bulk-in<span class="gmail-o">=</span>0x82, bulk-out<span class="gmail-o">=</span>0x2
ubt0: Interface 1 <span class="gmail-o">(</span>alt.config 5<span class="gmail-o">)</span> endpoints: isoc-in<span class="gmail-o">=</span>0x83, isoc-out<span class="gmail-o">=</span>0x3,
<span class="gmail-nv">wMaxPacketSize</span><span class="gmail-o">=</span>49, <span class="gmail-nv">nframes</span><span class="gmail-o">=</span>6, buffer <span class="gmail-nv">size</span><span class="gmail-o">=</span>294<br><br></code></pre><pre class="gmail-rouge gmail-highlight"><code><span style="font-family:tahoma,sans-serif">usbconfig shows:</span><br>ugen1.4: <</code>Bluetooth Dongle (HCI mode) Cambridge Silicon Radio, Ltd><br>at usbus1, cfg=0 md=HOST spd=FULL (12Mbps) pwr=ON (100mA)<br><span style="font-family:tahoma,sans-serif"><br></span></pre><pre class="gmail-rouge gmail-highlight"><span style="font-family:tahoma,sans-serif">I tried starting it, but it fails with </span>/etc/rc.d/bluetooth: ERROR: Unable to setup Bluetooth stack <br>for device ubt1</pre><pre class="gmail-rouge gmail-highlight"><span style="font-family:tahoma,sans-serif">Can anyone suggest what probably obvious thing I might be missing? I'd really love to<br>be able to use my earbuds on this system.</span></pre></div></div><span class="gmail_signature_prefix">-- </span><br><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr">Kevin Oberman, Part time kid herder and retired Network Engineer<br>E-mail: <a href="mailto:rkoberman@gmail.com" target="_blank">rkoberman@gmail.com</a><br></div><div>PGP Fingerprint: D03FB98AFA78E3B78C1694B318AB39EF1B055683</div></div></div></div></div></div></div></div></div>
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