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<p class="MsoNormal">Hi Nathaniel,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">FYI, I’ve created a Bugzilla for this issue. <a href="https://bugzilla.tianocore.org/show_bug.cgi?id=3444">https://bugzilla.tianocore.org/show_bug.cgi?id=3444</a><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Thanks,<o:p></o:p></p>
<p class="MsoNormal">Jack<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b>From:</b> Little, Jack <br>
<b>Sent:</b> Thursday, May 27, 2021 11:26 AM<br>
<b>To:</b> Desimone, Nathaniel L <nathaniel.l.desimone@intel.com>; devel@edk2.groups.io<br>
<b>Cc:</b> Desimone, Ashley E <ashley.e.desimone@intel.com><br>
<b>Subject:</b> RE: FtdiUsbSerialDxe<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">You may be right, I’ve seen that the EFI_DEVICE_ERROR comes from UsbIoControlTransfer() where there is a conflict between the data length requested vs. received.
<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Thanks,<o:p></o:p></p>
<p class="MsoNormal">Jack<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b>From:</b> Desimone, Nathaniel L <<a href="mailto:nathaniel.l.desimone@intel.com">nathaniel.l.desimone@intel.com</a>>
<br>
<b>Sent:</b> Thursday, May 27, 2021 11:06 AM<br>
<b>To:</b> Little, Jack <<a href="mailto:jack.tay.little@hpe.com">jack.tay.little@hpe.com</a>>;
<a href="mailto:devel@edk2.groups.io">devel@edk2.groups.io</a><br>
<b>Cc:</b> Desimone, Ashley E <<a href="mailto:ashley.e.desimone@intel.com">ashley.e.desimone@intel.com</a>><br>
<b>Subject:</b> RE: FtdiUsbSerialDxe<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Hi Jack,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">To my knowledge, the code hasn’t been touched at all since 2013 other than being moved from edk2 to edk2-platforms. The move from edk2 to edk2-platforms did happen in 2019, so perhaps something broke during that move but it seems unlikely.
The only other explanation I can think of for it working with code from circa 2018 is that something in UsbBusDxe changed that broke FtdiUsbSerialDxe.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks,<o:p></o:p></p>
<p class="MsoNormal">Nate<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b>From:</b> Little, Jack <<a href="mailto:jack.tay.little@hpe.com">jack.tay.little@hpe.com</a>>
<br>
<b>Sent:</b> Thursday, May 27, 2021 8:49 AM<br>
<b>To:</b> Desimone, Nathaniel L <<a href="mailto:nathaniel.l.desimone@intel.com">nathaniel.l.desimone@intel.com</a>>;
<a href="mailto:devel@edk2.groups.io">devel@edk2.groups.io</a><br>
<b>Cc:</b> Desimone, Ashley E <<a href="mailto:ashley.e.desimone@intel.com">ashley.e.desimone@intel.com</a>><br>
<b>Subject:</b> RE: FtdiUsbSerialDxe<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Hi Nate,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">The same FTDI device works with the source from around 05/23/2018, unsure of which chip is in there.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal">Thanks,<o:p></o:p></p>
<p class="MsoNormal">Jack<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b>From:</b> Desimone, Nathaniel L <<a href="mailto:nathaniel.l.desimone@intel.com">nathaniel.l.desimone@intel.com</a>>
<br>
<b>Sent:</b> Thursday, May 27, 2021 3:17 AM<br>
<b>To:</b> <a href="mailto:devel@edk2.groups.io">devel@edk2.groups.io</a>; Little, Jack <<a href="mailto:jack.tay.little@hpe.com">jack.tay.little@hpe.com</a>><br>
<b>Cc:</b> Desimone, Ashley E <<a href="mailto:ashley.e.desimone@intel.com">ashley.e.desimone@intel.com</a>><br>
<b>Subject:</b> RE: FtdiUsbSerialDxe<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Hi Jack,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">I believe that driver has only been tested with the FT232AM, which has not been manufactured for several years now. Ashley (cc’d) implemented it as an intern project in 2013:
<a href="https://github.com/tianocore/edk2/commit/3f1484f">https://github.com/tianocore/edk2/commit/3f1484f</a><o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">There probably needs to be some work done to get it running with newer FTDI chips like the FT232RL.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks,<o:p></o:p></p>
<p class="MsoNormal">Nate <o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"><b>From:</b> <a href="mailto:devel@edk2.groups.io">devel@edk2.groups.io</a> <<a href="mailto:devel@edk2.groups.io">devel@edk2.groups.io</a>>
<b>On Behalf Of </b>Little, Jack<br>
<b>Sent:</b> Wednesday, May 26, 2021 10:21 AM<br>
<b>To:</b> <a href="mailto:devel@edk2.groups.io">devel@edk2.groups.io</a><br>
<b>Subject:</b> [edk2-devel] FtdiUsbSerialDxe<o:p></o:p></p>
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<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Hi,<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Are there any known bugs with [edk2-stable202002] when using the FtdiUsbSerialDxe driver? I am seeing errors during initialization when TerminalDriverBindingStart() tries to reset the FTDI device and gets EFI_DEVICE_ERROR.<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
<p class="MsoNormal">Thanks,<o:p></o:p></p>
<p class="MsoNormal">Jack<o:p></o:p></p>
<p class="MsoNormal"><o:p> </o:p></p>
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<p class="MsoNormal"></o:p></span></p>
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