[Libusb-win32-devel] HID device problem

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

I have a little cute MCU programmer Microchip PICKit 2 and I beta
tests alternative driving programs using libusb under Linux and Windows.
Under Windows I need to use libusb-win32 device driver.

It runs fine for my home desktop under Windows XP professional
SP2 in Singapore (along with various versions of Linux). For more
detail, please refer to the following posts.
http://forum.microchip.com/tm.aspx?m=110205

Now I am under training in USA and I only has access to the corporate
desktop running Windows XP SP2. I have one problem now.

Normally PICkit 2 will appear under device manager as two
device: "HID-compliant device" and "USB Human Interface Device".

And it did appear as two device initially and I could also use the
Microchip provided Windows program (using native Windows
HID driver) to run it.

Then I was trying to "update" the native HID driver to the device driver
generated by libusb-win32 (1stly the 20060518 version and then
the 0.1.10.1 version). Somehow it failed. This was working for my
desktop at home.

And then I have a major problem now: PICkit 2 only
appears as a "HID-compliant device" inside device manager
instead of both "HID-compliant device" and "USB Human Interface
Device". The Microchip PC application still works. But I am not
able to test the libusb based application since I am not able to
install the libusb-win32 device driver.

I know I can not use the filter driver due to the fact that this
PICkit 2 has dual configurations (HID and custom). We had
a discussion on this last year when I was trying to port the
libusb based Linux application to Windows with libusb-win32.

This is kind of stranger. Is there a reason why an HID device
only has one entry in the device manager?

Sorry for the long email.

Regards,
Xiaofan