Thank you for the reply. Sorry for the confusion. I am using lib usb
1.0.19. I guess I am on the wrong mailing list. So many flavors of open
source... what is the correct list for lib usb for windows? Can I transfer
the thread or do I need to repost in the correct list?
Bob Tausworthe
On Aug 5, 2014 5:57 PM, "Xiaofan Chen" <xiaof...@gmail.com> wrote:
> On Wed, Jul 30, 2014 at 5:28 AM, Bob Tausworthe <t...@sentons.com> wrote:
> > Sorry to trouble you but I've exhausted other options. We are developing
> a
> > composite HID/debug interace device and are using libusb 1.0 under 32 bit
> > Cygwin to access the debug interface portion. Everything is working fine
> on
> > Windows 7 and Linux but when we try to run the application on Windows 8,
> it
> > fails with the error :
> >
> > libusb: debug [unsupported_open] unsupported API call for 'open'
> > (unrecognized device driver)
> > libusb: debug [libusb_open] open 2.16 returns -12
> > ERROR: Unable to open usb device
> >
> > After reading some posts of people with similar issues, I tried all of
> the
> > drivers Zadig supports but didn't see any difference in behavior. I have
> > tried building under Win7 and Win8 but the results are the same. I am
> using
> > version 1.0.18 of libusb. The trace below was taken with the WinUSB
> driver
> > version 6.1.7600.16385.
> >
>
> libusbx is no longer been updated since it has merged back to libusb.
> You should try libusb-1.0.19 first to see if that helps.
> http://sourceforge.net/projects/libusb/files/libusb-1.0/
>
> --
> Xiaofan
>
>
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