2012/10/12 Alan Stern :
> On Fri, 12 Oct 2012, Elric Fu wrote:
>
>> > What is error -145 on your platform? Is it -ETIMEDOUT?
>>
>> Yes. -145 means -ETIMEOUT.
>>
>> >
>> >> usb core send a get configuration descriptor request, but the control
>> >> transfer
>> >> will be timeout again.
>> >>
>> >>
On Fri, 12 Oct 2012, Elric Fu wrote:
> > What is error -145 on your platform? Is it -ETIMEDOUT?
>
> Yes. -145 means -ETIMEOUT.
>
> >
> >> usb core send a get configuration descriptor request, but the control
> >> transfer
> >> will be timeout again.
> >>
> >> I used the usb analyzer to capture
2012/10/11 Peter Stuge :
> Elric Fu wrote:
>> It is a usb 1.1 device and works at full speed.
>
> It is a frequent misunderstanding that a device must be 1.1 only
> because it does not support high speed. This is not the case.
>
>
>> But the interesting thing is the bcdUSB field of device descripto
2012/10/11 Alan Stern :
> On Thu, 11 Oct 2012, Elric Fu wrote:
>
>> Hi all,
>>
>> I recently found a strange issue on a embedded platform and don't know
>> how to fix it. Please give me some suggestions.
>>
>> The platform is ar9331. The issue is if we attach a usb audio device to
>> the host on ar
On Thu, 11 Oct 2012, Elric Fu wrote:
> Hi all,
>
> I recently found a strange issue on a embedded platform and don't know
> how to fix it. Please give me some suggestions.
>
> The platform is ar9331. The issue is if we attach a usb audio device to
> the host on ar9331 directly or via a usb 1.1 h
Elric Fu wrote:
> It is a usb 1.1 device and works at full speed.
It is a frequent misunderstanding that a device must be 1.1 only
because it does not support high speed. This is not the case.
> But the interesting thing is the bcdUSB field of device descriptor
> is 0x0200.
It is perfectly lega
Hi all,
I recently found a strange issue on a embedded platform and don't know
how to fix it. Please give me some suggestions.
The platform is ar9331. The issue is if we attach a usb audio device to
the host on ar9331 directly or via a usb 1.1 hub the usb audio works fine,
but if we attach it via
