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

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

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