<div dir="ltr">Hi Kyosti, Thanks the pointers. I tried adding the changes for dbgp from the bug20-2.6.35-linaro to the 2.6.32 kernel I'm running on the phone. You can see the results here:<div><br></div><div><a href="https://github.com/DengueTim/jordan-kernel/commits/AeroKernel">https://github.com/DengueTim/jordan-kernel/commits/AeroKernel</a><br>
</div><div><br></div><div>On startup, in /proc/kmsg I see:</div><div><br></div><div><div><7>[ 2.010284] dbgp gadget: setup: desc device</div><div><7>[ 2.010314] dbgp gadget: setup complete: 0, 8/8</div><div>
<7>[ 2.010467] dbgp gadget: setup: desc device</div><div><7>[ 2.010467] dbgp gadget: setup complete: 0, 18/18</div><div><7>[ 2.010589] dbgp gadget: setup: failure req 6 v 200</div><div><7>[ 2.010681] dbgp gadget: setup: failure req 6 v 200</div>
<div><7>[ 2.010772] dbgp gadget: setup: failure req 6 v 200</div><div><7>[ 2.016204] dbgp gadget: setup: failure req 6 v 3ee</div></div><div><br></div><div>I've attached the full log in case there's more clues as to why it's failing. Any more suggestions of what I should be looking at?</div>
<div><br></div><div> Tim.</div><div><br></div><div><br></div><div><br></div></div><div class="gmail_extra"><br><br><div class="gmail_quote">On Mon, Jan 20, 2014 at 7:04 PM, Kyösti Mälkki <span dir="ltr"><<a href="mailto:kyosti.malkki@gmail.com" target="_blank">kyosti.malkki@gmail.com</a>></span> wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div class="HOEnZb"><div class="h5">On 01/20/2014 01:42 PM, Timothy Potter wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
On Sat, Jan 18, 2014 at 12:52 AM, John Lewis wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
<br>
On 17/01/14 11:01, Timothy Potter wrote:<br>
<blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex">
I've<br>
also got an old Android phone with the ECHI debug gadget compiled into<br>
the kernel. I've tried connecting that to every USB port on the<br>
Chromebox but never get any output.<br>
<br>
</blockquote>
Hi Tim,<br>
Have you got "USB 2.0 EHCI debug dongle support" compiled on the<br>
coreboot side? If so, did you select "NET20DC and compatible" or<br>
"BeagleBone"?<br>
<br>
What kernel is the phone running? I assume because you have the EHCI<br>
debug gadget complied in the Android gadget is not? How does your phone<br>
react to the missing Android gadget?<br>
<br>
<br>
</blockquote>
Hi John,<br>
I had a bit of time to review what how I'd set things up this weekend.<br>
Yes. I compiled the debug dongle support into Coreboot, and left the<br>
default 'NET20DC and compatible' selected.<br>
On the phone side. Yes, the EHCI debug gadget replaces the Android<br>
gadget, so the phone won't even charge while booted, but otherwise seems to<br>
work as normal minus USB functionality. The kernel is version 2.6.32. I<br>
suspect the problem is on the phone side as the phone doesn't show up in<br>
the output of lsusb when connected to a Linux box.<br>
I saw your video with the BeagleBone and HP laptop. Thanks for making<br>
it. Good to see how things should work.<br>
<br>
Tim.<br>
</blockquote>
<br></div></div>
Hi Tim<br>
<br>
That kernel is missing some bits from USB gadget framework. The oldest we have some result for is 2.6.35 and even that requires some backported patches.<br>
<br>
We have this linked at bottom of coreboot EHCI gadget wiki:<br>
<a href="https://github.com/buglabs/bug20-2.6.35-linaro/commits/master" target="_blank">https://github.com/buglabs/<u></u>bug20-2.6.35-linaro/commits/<u></u>master</a><span class="HOEnZb"><font color="#888888"><br>
<br>
<br>
Kyösti<br>
<br>
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</font></span></blockquote></div><br></div>