Re: [Libusb-win32-devel] (no subject)

[Xiaofan C. <xia...@gm...>]

2012/4/12 Yusuf Sekman <ys...@gm...>:
> Hello Xiaofan,
>
> I have another question about bulk.c example. I am trying to run the
> example with my firmware code loaded into TI C5515 DSP.
> When the bulk.c program running, the console says :
>
>  success: device 0925:1456opened
>  success: set_configuration #1
>  success: claim_interface #0
> error reading:
> libusb0-dll:err [_usb_reap_async] reaping request failed,win error:
> A device attached to the system is not functioning.
>
> I simply know that, my firmware code is not working properly, as I
> understand from the error. But my question is that at which stage of
> the transfer, my firmware fails?
> Additionally, I see the error when the device starts to run. For a
> second run of bulk.c program, I see timeout error at reading stage.
> Does this imply anything for my situation?
>
> I appreciate for your helps. Regards.

I think libusb-win32 may not be the best debug tool for
your firmware. Do you have access to a HW debugger for
your device? Do you have access to a USB HW analyzer?

If not, then probably you can make use of the debug
version of libusb-win32 and then use DebugView
to post the debug log. Please search the archive
on how to do that.



-- 
Xiaofan