Re: [Libusb-win32-devel] Could not claim interface- requested resource in use.

[Jonathon L. - H. <jon...@ha...>]

Are you communicating with an FTDI device?

I had a similar problem with an FTDI device in the past.

J.

Jon Burroughs wrote:
> Hello,
> 
>  
> 
> I am developing my first USB application using libusb-win32.  (Read: I 
> am a newbie.)  I was getting -22 (EINVAL) returned by 
> usb_claim_interface, until I read some of the posts and learned that I 
> needed to call usb_set_configuration first.  Now that I am doing that, I 
> am getting errno code -5 (EIO), and usb_strerror() returns the following 
> message "could not claim interface 0, error: The requested resource is 
> in use."   Can anyone give me any suggestions?
> 
>  
> 
> Best regards,
> 
> Jon
>