[libhid-discuss] python works but not C

[Charles Lepple]

On Feb 18, 2009, at 2:51 PM, Will Woods wrote:

> I am successfully talking to my device via the python bindings, but  
> my C
> version fails with error 21 "could not claim interface 0: Device or
> resource busy" after successfully opening the device. The two  
> pieces of
> code look the same to me, but I must be missing something?

Not sure - they do look equivalent to me.

What version of libhid are you using (and what distribution did it  
come from, if any)?

You might be able to find something out via "ltrace" - it intercepts  
calls to shared libraries, but I don't have any specific tips on how  
you might go about that. (If you do, please compress any logs before  
sending them to the list.)