On Sun, Oct 21, 2007 at 9:47 PM, Xiaofan Chen <xiaofanc@gmail.com> wrote:
> It is rather strange that I could not find a Python wrapper for the
> native HID api (hid.dll) under Win32. Wouter was looking for one
> before.
> http://mail.python.org/pipermail/python-list/2004-April/258892.html
>
> If it is not HID but a generic usb device, libusb/pyusb might be
> a good combination under Windows/Linux/Mac OS X/FreeBSD.
>
> libusb (GPL/LGPL): http://libusb.sourceforge.net/
> libusb-win32 (GPL/LGPL): http://libusb-win32.sourceforge.net/
> pyusb (BSD license): http://pyusb.berlios.de/
>
> libhid (include python-hid wrapper using SWIG) is supposed to
> be a cross platform for HID device. But it is based on libusb
> and libusb does not have a cross platform API to detach the
> kernel HID driver under Windows/Mac OS X/FreeBSD. In
> fact, libhid is not officially ported to Windows yet.
>
> libhid webpage: http://libhid.alioth.debian.org/
> libhid is under GPL license even though the authors want to
> use something like Artistic license.
>
> The development version of libusb-win32 is supposed to have
> a backend based on HID but it is not working yet.
>
> It seems to me there is an native HID API wrapper for
> Mac OS X.
> http://www.wooji-juice.com/free/pyhid/readme.html
>
> It seems to me that this should not be so difficult for
> experienced Python developers. After all, VB/VC/C#
> wrapper using P/Invoke are quite well documented
> in various websites (including lvr.com).
>

This is a very old post. Today I happen to come across this
page. It is not mature, but it seems to be promising.
http://pypi.python.org/pypi/pywinusb/0.2.3

C:\pywinusb\pywinusb-0.2.3\pywinusb-0.2.3\examples>python  pnp_sample.py
saddly my device is not here... yet :-(
Hey, a hid device just disconnected!
Hey, a hid device just connected!
saddly my device is not here... yet :-(

(unplug and plug PICKit 2).

Of course pyusb-1.0 may get there as well with the new Windows backend
for libusb-1.0 (WinUSB, HID, and libusb0.sys backend, the first two backends
are working quite well now, 3rd one is in progress).
pyusb: http://sourceforge.net/projects/pyusb/
(use the svn development branch, but it is not stable yet)
libusb 1.0 Windows backend: http://www.libusb.org/wiki/windows_backend
(to me this is quite stable already, but I might be biased as one of the main
initial tester).


-- 
Xiaofan http://mcuee.blogspot.com
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