Thumbo in gadget mode (RMA)

[Gerardo Richarte-2]

hi, I'd like to confirm if anybody could really make the USB port in the
Thumnbo work as gadget.

I could not, and failed after many attempts, searched and asked in the
list, and only found people who could not make it work, or had made it
work with previous versions of the Thumbo.

I can make my summit work as gadget, but the same configuration doesn't
work on Thumbo.

Some people said it may be a specific pin that needs to be wired in the
PCB and is not.

If anybody could share a build (any version) which should work, I'd be
very interested in trying my thumbo with it, since I'm about to send it
back to gumstix, given that everything suggests is a hardware problem
(quite possibly design related)

    thanks a lot!

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[Tech-29]

It does work in gadget mode it's just that none of the stock OE
recipes configure it correctly. You have to modify and rebuild the
kernel to make it work. I did this a while ago for a project but no
longer have that particular build handy to send to you. Good luck.

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[Tech-29]

Also, see
http://www.jumpnowtek.com/index.php?option=com_content&view=article&id=53&Itemid=65


On Tue, Sep 6, 2011 at 3:14 PM, Tech <[hidden email]> wrote:
> It does work in gadget mode it's just that none of the stock OE
> recipes configure it correctly. You have to modify and rebuild the
> kernel to make it work. I did this a while ago for a project but no
> longer have that particular build handy to send to you. Good luck.
>

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[Gerardo Richarte-2]

I really appreciate your help, this is encouraging. However, I don't
think that's
my case, as I've successfully built and used the gumstix in gadget mode
(g_ether), but
on my summit board. The same exact gumstix and kernel doesn't work on the
Thumbo.

    Do you remember if you had to do anything specific for the Thumbo?
(or was
it just enabling gadget in the kernel in general)

    again, thanks a lot, any help is a lot of help!

On 09/06/2011 04:14 PM, Tech wrote:
> It does work in gadget mode it's just that none of the stock OE
> recipes configure it correctly. You have to modify and rebuild the
> kernel to make it work. I did this a while ago for a project but no
> longer have that particular build handy to send to you. Good luck.


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[Gerardo Richarte-2]

yep. This is what I did to get it working with the summit, but had no
luck with the Thumbo :(

    oh well... let's see what others say.

    What I've heard is that older Thumbos were able to switch to
gadget/otg mode,
but the newer models can't, do to a problem in the PCB.

    gera

On 09/06/2011 04:15 PM, Tech wrote:

> Also, see
> http://www.jumpnowtek.com/index.php?option=com_content&view=article&id=53&Itemid=65
>
>
> On Tue, Sep 6, 2011 at 3:14 PM, Tech <[hidden email]> wrote:
>> It does work in gadget mode it's just that none of the stock OE
>> recipes configure it correctly. You have to modify and rebuild the
>> kernel to make it work. I did this a while ago for a project but no
>> longer have that particular build handy to send to you. Good luck.
>>
> ------------------------------------------------------------------------------
> Malware Security Report: Protecting Your Business, Customers, and the
> Bottom Line. Protect your business and customers by understanding the
> threat from malware and how it can impact your online business.
> http://www.accelacomm.com/jaw/sfnl/114/51427462/
> _______________________________________________
> gumstix-users mailing list
> [hidden email]
> https://lists.sourceforge.net/lists/listinfo/gumstix-users
>

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[Neil MacMunn]

Hello Gera,

Newer versions of Thumbo have a 0R resistor (R43) that previous
versions did not - located near the USB connector. You might try
removing that component.

-
Neil


2011/9/6 Gerardo Richarte <[hidden email]>:

> yep. This is what I did to get it working with the summit, but had no
> luck with the Thumbo :(
>
>    oh well... let's see what others say.
>
>    What I've heard is that older Thumbos were able to switch to
> gadget/otg mode,
> but the newer models can't, do to a problem in the PCB.
>
>    gera
>
> On 09/06/2011 04:15 PM, Tech wrote:
>> Also, see
>> http://www.jumpnowtek.com/index.php?option=com_content&view=article&id=53&Itemid=65
>>
>>
>> On Tue, Sep 6, 2011 at 3:14 PM, Tech <[hidden email]> wrote:
>>> It does work in gadget mode it's just that none of the stock OE
>>> recipes configure it correctly. You have to modify and rebuild the
>>> kernel to make it work. I did this a while ago for a project but no
>>> longer have that particular build handy to send to you. Good luck.
>>>
>> ------------------------------------------------------------------------------
>> Malware Security Report: Protecting Your Business, Customers, and the
>> Bottom Line. Protect your business and customers by understanding the
>> threat from malware and how it can impact your online business.
>> http://www.accelacomm.com/jaw/sfnl/114/51427462/
>> _______________________________________________
>> gumstix-users mailing list
>> [hidden email]
>> https://lists.sourceforge.net/lists/listinfo/gumstix-users
>>
>
>
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> Virtualization increases hardware utilization and delivers a new level of
> agility. Learn what those decisions are and how to modernize your storage
> and backup environments for virtualization.
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[Gerardo Richarte-2]

On 09/15/2011 04:08 PM, Neil MacMunn wrote:
> Hello Gera,
>
> Newer versions of Thumbo have a 0R resistor (R43) that previous
> versions did not - located near the USB connector. You might try
> removing that component.
thanks a lot for the suggestion Neil!!
Do you think I should just remove it and leave it unconnected?
I'll first try to see whether there's some sort of signal or what with
my oscilloscope.

erm... being that your email is @gumstix... is this just a guess on your
part, or it's a somehow more educated guess with some extra information?

    thanks a lot!
    I will see if it looks undoable, and I'll try it and share my results.

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[Neil MacMunn]

Hello again,

I took a more careful look at Thumbo and realized that it is not
intended to act as a USB host. From the product page
(http://www.gumstix.com/store/product_info.php?products_id=240)

 USB standard A plug with OTG signals (wired as a device)

A similar device that will allow you to operate as either host or
device is the Pinto-TH
(http://www.gumstix.com/store/product_info.php?products_id=239)

The 0R resistor was added to Thumbo to correct a boot issue.

-
Neil



2011/9/15 Gerardo Richarte <[hidden email]>:

> On 09/15/2011 04:08 PM, Neil MacMunn wrote:
>> Hello Gera,
>>
>> Newer versions of Thumbo have a 0R resistor (R43) that previous
>> versions did not - located near the USB connector. You might try
>> removing that component.
> thanks a lot for the suggestion Neil!!
> Do you think I should just remove it and leave it unconnected?
> I'll first try to see whether there's some sort of signal or what with
> my oscilloscope.
>
> erm... being that your email is @gumstix... is this just a guess on your
> part, or it's a somehow more educated guess with some extra information?
>
>    thanks a lot!
>    I will see if it looks undoable, and I'll try it and share my results.
>
> ------------------------------------------------------------------------------
> Doing More with Less: The Next Generation Virtual Desktop
> What are the key obstacles that have prevented many mid-market businesses
> from deploying virtual desktops?   How do next-generation virtual desktops
> provide companies an easier-to-deploy, easier-to-manage and more affordable
> virtual desktop model.http://www.accelacomm.com/jaw/sfnl/114/51426474/
> _______________________________________________
> gumstix-users mailing list
> [hidden email]
> https://lists.sourceforge.net/lists/listinfo/gumstix-users
>

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provide companies an easier-to-deploy, easier-to-manage and more affordable
virtual desktop model.http://www.accelacomm.com/jaw/sfnl/114/51426474/
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[Gerardo Richarte-2]

I really appreciate your help Neil,
I'm trying to use it as device, either gadget or otg, but truly I'm just
interested in g_ether.

I have compiled and used g_ether on my summit, no problems.
But the same SD card with the same kernel and modules doesn't work on my
thumbo.
I will try removing the resistor as you suggested earlier, or do you
think now that it doesn't make any sence?

I'm truly sorry to keep asking the same questions, I feel stupid :( but
I have no other ideas left

    gera

On 09/15/2011 05:51 PM, Neil MacMunn wrote:

> Hello again,
>
> I took a more careful look at Thumbo and realized that it is not
> intended to act as a USB host. From the product page
> (http://www.gumstix.com/store/product_info.php?products_id=240)
>
>  USB standard A plug with OTG signals (wired as a device)
>
> A similar device that will allow you to operate as either host or
> device is the Pinto-TH
> (http://www.gumstix.com/store/product_info.php?products_id=239)
>
> The 0R resistor was added to Thumbo to correct a boot issue.
>
> -
> Neil
>
>
>
> 2011/9/15 Gerardo Richarte <[hidden email]>:
>> On 09/15/2011 04:08 PM, Neil MacMunn wrote:
>>> Hello Gera,
>>>
>>> Newer versions of Thumbo have a 0R resistor (R43) that previous
>>> versions did not - located near the USB connector. You might try
>>> removing that component.
>> thanks a lot for the suggestion Neil!!
>> Do you think I should just remove it and leave it unconnected?
>> I'll first try to see whether there's some sort of signal or what with
>> my oscilloscope.
>>
>> erm... being that your email is @gumstix... is this just a guess on your
>> part, or it's a somehow more educated guess with some extra information?
>>
>>    thanks a lot!
>>    I will see if it looks undoable, and I'll try it and share my results.
>>
>> ------------------------------------------------------------------------------
>> Doing More with Less: The Next Generation Virtual Desktop
>> What are the key obstacles that have prevented many mid-market businesses
>> from deploying virtual desktops?   How do next-generation virtual desktops
>> provide companies an easier-to-deploy, easier-to-manage and more affordable
>> virtual desktop model.http://www.accelacomm.com/jaw/sfnl/114/51426474/
>> _______________________________________________
>> gumstix-users mailing list
>> [hidden email]
>> https://lists.sourceforge.net/lists/listinfo/gumstix-users
>>
> ------------------------------------------------------------------------------
> Doing More with Less: The Next Generation Virtual Desktop
> What are the key obstacles that have prevented many mid-market businesses
> from deploying virtual desktops?   How do next-generation virtual desktops
> provide companies an easier-to-deploy, easier-to-manage and more affordable
> virtual desktop model.http://www.accelacomm.com/jaw/sfnl/114/51426474/
> _______________________________________________
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> [hidden email]
> https://lists.sourceforge.net/lists/listinfo/gumstix-users
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[Ash Charles-2]

Hi Gera,

2011/9/15 Gerardo Richarte <[hidden email]>:
> I have compiled and used g_ether on my summit, no problems.
> But the same SD card with the same kernel and modules doesn't work on my
> thumbo.
> I will try removing the resistor as you suggested earlier, or do you
> think now that it doesn't make any sence?
I'd actually hold off on removing that resistor.  I tested g_ether on
Thumbo  (R2666...latest I believe) and it worked just fine for me.  I
was using a 2.6.39 kernel with OTG mode enabled
(CONFIG_USB_MUSB_PERIPHERAL=y and CONFIG_USB_GADGET_MUSB_HDRC=y).
Once booted, I did a 'modprobe g_ether' to load the ethernet gadget (I
had rigged up a serial console to issue this command but this could be
done automatically too).

'ifconfig -a' on my laptop and my thumbo showed a USB net connection
and the dmesg chatter showed a connection being established.

If you've followed effectively these steps (which it sounds like you
have), I think you'll need an RMA (sorry :(---that really sucks).

-Ash

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