<div dir="ltr"><div dir="ltr"><div dir="ltr"><div>Hi Aleksander,</div><div><br></div><div>Looks like Microsoft uses inconsistent UUIDs for the same MS basic connect extensions:</div><div dir="ltr"><br></div><div dir="ltr"><a href="https://docs.microsoft.com/en-us/windows-hardware/drivers/network/mb-protocol-configuration-operations--pco-">https://docs.microsoft.com/en-us/windows-hardware/drivers/network/mb-protocol-configuration-operations--pco-</a>:</div>Service = MBB_UUID_BASIC_CONNECT_EXT_CONSTANT<br>Service UUID = 3d01dcc5-fef5-4d05-9d3a-bef7058e9aaf<br><br><a href="https://docs.microsoft.com/en-us/windows-hardware/drivers/network/mb-lte-attach-operations">https://docs.microsoft.com/en-us/windows-hardware/drivers/network/mb-lte-attach-operations</a>:<br>UUID = UUID_BASIC_CONNECT_EXTENSIONS<br>UUID Value = 3d01dcc5-fef5-4d05-0d3a-bef7058e9aaf</div><div dir="ltr"><br></div><div>I added the extensions based on the PCO CID.   Given the close resemblance of these two UUIDs, it looks more like a typo in their doc.  I tested with Fibocom L850, which supports the PCO CID and uses the 9d3a variant.   Unfortunately, I don't have another modem to compare with.</div><div><br></div><div>Ben</div><div dir="ltr"><div><div dir="ltr"><br><div class="gmail_quote"><div dir="ltr">On Mon, Sep 10, 2018 at 6:59 AM Aleksander Morgado <<a href="mailto:aleksander@aleksander.es">aleksander@aleksander.es</a>> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">Hey Ben & all,<br>
<br>
In libmbim we have the MS basic connect extensions UUID defined as:<br>
   3d01dcc5-fef5-4d05-9d3a-bef7058e9aaf<br>
<br>
Which is in line with e.g.<br>
<a href="https://docs.microsoft.com/en-us/windows-hardware/drivers/network/mb-modem-reset-operations" rel="noreferrer" target="_blank">https://docs.microsoft.com/en-us/windows-hardware/drivers/network/mb-modem-reset-operations</a><br>
<br>
But then I'm seeing devices reporting the basic connect extensions UUID as:<br>
  3d01dcc5-fef5-4d05-0d3a-bef7058e9aaf<br>
<br>
Which is actually in line with e.g.<br>
<a href="https://docs.microsoft.com/en-us/windows-hardware/drivers/network/mb-base-stations-information-query-support" rel="noreferrer" target="_blank">https://docs.microsoft.com/en-us/windows-hardware/drivers/network/mb-base-stations-information-query-support</a><br>
<br>
What is this mess...? Are both UUIDs used interchangeably?<br>
<br>
-- <br>
Aleksander<br>
<a href="https://aleksander.es" rel="noreferrer" target="_blank">https://aleksander.es</a><br>
</blockquote></div></div></div></div></div></div>