Re: Applying Patch to Change Max Packet Size for Device

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Thanks everyone.  Here are some responses:

On Wed, Sep 16, 2015 at 4:33 PM, Greg KH <greg@xxxxxxxxx> wrote:
> Really?  I thought you said the error was in the xhci driver, not ehci,
> for 3.14.

We tested with both and it failed with both, sorry for not being clear.

> Can't you just plug your device into a desktop running a 4.2 kernel to
> see what it does?

It actually does work with 4.2, so if all else fails we may update to
this kernel.

On Thu, Sep 17, 2015 at 8:49 AM, Alan Stern <stern@xxxxxxxxxxxxxxxxxxx> wrote:
> If the problem affects both the EHCI and xHCI controllers, why do you
> want to work around by changing only xhci-hcd?  Wouldn't it be better
> to change the USB core?

We're looking into this and have realized this is probably the best
place to make a patch, thank you.

> What type of endpoint is this, anyway (control, bulk, interrupt, or
> isochronous)?

We're using an isochronous transfer.

On Thu, Sep 17, 2015 at 12:57 PM, Fabio Estevam <festevam@xxxxxxxxx> wrote:
> You could just build 4.2 or 4.3-rc1 manually and deploy it.
>
> We use Yocto with kernel 4.1 without issues.

Thanks, we may try this if we don't get a patch up and running.

Thanks again,
Todd
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