Re: Errno:۱۹ _Please Help

Xiaofan Chen <[email protected]>
Newsgroups gmane.comp.lib.libusb.devel.windows
Message-ID <CAGjSPUDM07C8pWhv8XRpXqxbcMwHS0ZdeEtASqAdyY_X=0dRmQ@mail.gmail.com>
On Mon, Sep 15, 2014 at 1:18 AM, samira taremi <[email protected]> wrote:
> Hi
> Good time
> Excuse me, I want to run a sample by site nfcpy
> And library libusb-win32-bin-1.2.6.0 and pyusb-1.0.0a2 and
>   pyserial-2.7.win32_py3k.exe and add nfc and bzrlib but unfortunately I did
> not recognize the usb device and run the following simple command does not
> show the error below:
>
> import nfc
> clf = nfc.ContactlessFrontend ('udp')
> print (clf)
> The error:
>
> IOError: [Errno: 19] No such device
>
> For libusb-win32-bin-1.2.6.0 file named install-filter-win.exe ran to the
> library to recognize mobile usb nfc c drive in a folder in the installation
> program copied Lib pyserial
> 2.7.win32_py3k.exe file and then run run was added in the library itself
> pyusb bzr, and I added to my library.
>
> But still the above error is shown
> Thank you for helping me get my
>

What is the test output of testlibusb-win.exe? If the device is listed
there, then it is not a libusb-win32 problem. It could be a pyusb
problem.

Firstly make sure your device is listed in testlibusb-win32.exe.

Then follow the pyusb tutorial to see if it can find the device.
https://github.com/walac/pyusb/blob/master/docs/tutorial.rst

pyusb has its own mailing list.
https://lists.sourceforge.net/lists/listinfo/pyusb-users

If pyusb works but not nfcpy, then it is the problem of nfcpy.


-- 
Xiaofan

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