Re: [Libusb-devel] Control transfers

[Alan S. <st...@ro...>]

On Mon, 6 Jul 2009, Nuno Santos wrote:

> Hi,
> 
> Today I was doing some experiments on control transfers with libusb. I  
> was setting a custom request to process on the device side,
> and then invoking a control transfer on the host side to activate that  
> request.
> 
> I was getting pipe error on the transaction.
> 
> My device is only composed by a unique custom endpoint but I was  
> assuming the use of the default control endpoint.
> 
> Why could this not be working? What can possibly be the most direct  
> cause?

Passing an incorrect pipe value to the library seems like the most 
obvious possibility.

Alan Stern