hi thanks for you kind answer,
admit about lacking of infos haha..

here's my situations.

1. i currently use QEMU ver 1.2, but plan to upgrade to 1.5 soon.
2. in version 1.2, i found that USB passthrough is not supported on
Windows/Mac.
    In version 1.5, however, it seems possible to use passthrough by
re-implementing usb host (libusb)  , right?

    but i didn't find out any former work which uses USB passthrough on
Windows and Mac

 so my questions are 2 followings.

1.  is there any articles about using USB passthrough on Windows and MAC
2.  do you guys have some performance issues?
     -  libusb vs former implementation (qemu ver 1.2)


have good day


2013/7/8 Andreas Färber <afaer...@suse.de>

> Hi,
>
> Am 08.07.2013 10:25, schrieb Geunhae Lee:
> > hi,
> > i have questions about USB passthrough .
> >
> > it seems that host usb passthrough is not working on Windows/Mac (as
> host)
> >
> > is there any work-around solution for that?
> > or
> > is there some patches out there?
>
> Your question is lacking too much information to answer:
> * Are you using today's Git version? Or which stable version?
> * Define "not working": build errors? runtime errors?
>
> I would expect the new libusb-based backend to work on Windows/Mac but
> it requires a very recent library version, which you may need to update.
>
> Also it may help if you CC'ed the USB maintainer on your question. :)
>
> Regards,
> Andreas
>
> --
> SUSE LINUX Products GmbH, Maxfeldstr. 5, 90409 Nürnberg, Germany
> GF: Jeff Hawn, Jennifer Guild, Felix Imendörffer; HRB 16746 AG Nürnberg
>

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