On 21/06/2011, at 5:18 PM, Laurent Gauch wrote:

> Steve Bennett wrote:
>> On 21/06/2011, at 5:01 PM, Xiaofan Chen wrote:
>> 
>>  
>>> On Tue, Jun 21, 2011 at 2:55 PM, Xiaofan Chen <xiaof...@gmail.com> wrote:
>>>    
>>>>> But are you sure to have the correct libusb version. On linux and mac, the
>>>>> libusb is the kernel driver for the d2xx.
>>>>>        
>>>> This has been discussed before and I think in this case an exception should
>>>> be granted and the patch should be accepted.
>>>> 
>>>> Thread:
>>>> http://lists.berlios.de/pipermail/openocd-development/2011-March/018422.html
>>>> 
>>>> I was suggesting the user to use the open source libftdi and libftdi-1.0
>>>> under Linux instead but D2XX might still have some benefits so that
>>>> users may still want to use it.
>>>> 
>>>>      
>>> It is a long thread but I was able to reproduce the error.
>>> http://lists.berlios.de/pipermail/openocd-development/2011-March/018434.html
>>> "I think the latest d2xx library needs some fix from the OpenOCD
>>> side or from the d2xx side."
>>> 
>>> It is more difficult to ask FTDI for a fix so it may better to fix this from
>>> OpenOCD side. Therefore I think the patch should be accepted.
>>> 
>>> When FTDI fixes D2xx, then probably the patch can be reverted.
>>>    
>> 
>> I have reported the problem to FTDI, but in my experience we can not
>> expect a response soon, if ever.
>> I think there are two options, either apply the patch as a workaround
>> (note that the returned value is *never* used), or remove support for D2XX.
>>  
> Thank you Steve,
> 
> If you do not get any reply on next Monday, please let me know I will ask 
> them. Amontec has good contacts to FTDI team.

Will do.

> Please apply the patch as a workaround.

It is on the list. Perhaps some kind maintainer will do so.

> 
> But if the returned value is never used, there are no reason to give a 
> warning !

Agreed. But it seemed less of a step from fatal error to warning than ignoring 
it
completely.

Cheers,
Steve

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