On Fri, 14 Feb 2014, Paul Zimmerman wrote:
> > The problem may have something to do with the fact that the keyboard's
> > internal hub runs at full speed. The other devices you tested, which
> > worked okay, would have been low speed and high speed but not full
> > speed.
>
> The original email
> From: linux-usb-ow...@vger.kernel.org
> [mailto:linux-usb-ow...@vger.kernel.org] On Behalf Of Alan Stern
> Sent: Friday, February 14, 2014 9:09 AM
>
> On Thu, 13 Feb 2014, Ben Collins wrote:
>
> > On Feb 13, 2014, at 10:19 AM, Alan Stern wrote:
> > > On Thu, 13 Feb 2014, Peter Chen wrote:
> >
On Thu, 13 Feb 2014, Ben Collins wrote:
> On Feb 13, 2014, at 10:19 AM, Alan Stern wrote:
> > On Thu, 13 Feb 2014, Peter Chen wrote:
> >
> - If you have a usb bus analyzer, please check if the GET_DESCRPTOR
> sends out successfully.
> (Most probably, I don't think it sends out)
>
On Feb 13, 2014, at 10:19 AM, Alan Stern wrote:
> On Thu, 13 Feb 2014, Peter Chen wrote:
>
- If you have a usb bus analyzer, please check if the GET_DESCRPTOR sends
out successfully.
(Most probably, I don't think it sends out)
>>>
>>> I've attached a screen cap of the USB capture
On Feb 13, 2014, at 10:19 AM, Alan Stern wrote:
>> Since I can't see device IN response for setup stage from your capture
>> log, but I assume the device is ok.
>
> If the SETUP packet is invalid, the device won't respond to it. If the
> SETUP packet is valid, the device MUST respond with ACK.
On Thu, 13 Feb 2014, Peter Chen wrote:
> > > - If you have a usb bus analyzer, please check if the GET_DESCRPTOR sends
> > > out successfully.
> > > (Most probably, I don't think it sends out)
> >
> > I've attached a screen cap of the USB capture. At the to in red is the
> > "SETUP txn" that fa
On Wed, Feb 12, 2014 at 03:36:57PM -0500, Ben Collins wrote:
> On Feb 9, 2014, at 9:38 PM, Peter Chen wrote:
> >>
> >>desc = (struct usb_device_descriptor *)tmpbuf;
> >>dev->descriptor.bMaxPacketSize0 = 64; /* Start off at 64
> >> bytes */
> >>/* Default to 64 byte
On Feb 9, 2014, at 9:38 PM, Peter Chen wrote:
>>
>>
>> Unfortunately, similar reports on the U-Boot mailing list have been met
>> with no useful information. I'm asking here because 1) the setup works on
>> Linux, and 2) there are a lot of knowledgable USB folks here.
>>
>> That being said, my
>
> Unfortunately, similar reports on the U-Boot mailing list have been met
> with no useful information. I'm asking here because 1) the setup works on
> Linux, and 2) there are a lot of knowledgable USB folks here.
>
> That being said, my issue has to do with a Freescale PowerPC SoC based
> sy
