Re: [Fx2lib-devel] Isochronous Streaming Using LibUSB from FPGA

[Phil B. <phi...@gm...>]

Hmm...I think the problem might lie in my handling of the setup data.  Right
now I'm just using the bulk-mode example code from fx2lib and I don't think
that's correct for my application.  I will have to investigate that further.

-Phil

On Fri, Jul 8, 2011 at 2:35 AM, Xiaofan Chen <xia...@gm...> wrote:

> On Fri, Jul 8, 2011 at 1:58 PM, Phil Behnke <phi...@gm...> wrote:
> > I think the sleep code is one of the problems, but if I lower or get rid
> of
> > it, libUSB starts to fail (in both python and C) with a LIBUSB_ERROR_IO
> > error.
>
> You might want to use multi-thread approach. But I do not know much
> about this. libusb-1.0's async APIs are quite complicated when used
> in a multithread application.
> http://www.libusb.org/wiki/libusb-1.0
> http://libusb.sourceforge.net/api-1.0/io.html
>
> http://libusb.sourceforge.net/api-1.0/group__asyncio.html
> You might try this simple option.
> "2) Repeatedly call libusb_handle_events() in blocking mode from a
> dedicated thread."
>
> Or if you want to have some challenges, try the following which
> is quite POSIX centric and not that good for Windows.
> http://libusb.sourceforge.net/api-1.0/mtasync.html
>
>
> --
> Xiaofan
>
>
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