[Libusb-win32-devel] libusb-win32 kernel interface passthrough for composite device

[Raymond B. <ray...@gm...>]

 Hello, I'm looking to write a Windows driver/achieve similar functionality
using libusb-win32 for the Apple iPad. I wish to achieve the following with
the driver:

1. The driver should be able to send vendor-specific control messages to
the device (to expose a CDC NCM interface in a new configuration).
2. The driver should be able to set the device's USB configuration (to this
new configuration).
3. The driver should pass through the PTP and Apple USBMUX interfaces to
their appropriate (and default) drivers.
4. The driver should configure and present the NCM Data and NCM Control
interfaces as a Windows Network Adapter.

>From these requirements, I'm thinking that this driver will have a similar
role as the Windows Generic Parent Driver. My questions are:

1. Is the "passthrough" of interfaces possible with the libusb-win32 kernel
driver? Or will I have to write my own?
2. Windows recently added support for UMDF NetAdapterCx drivers. Would a
driver like that be able to communicate with libusb's kernel driver? Or
would it have to be bundled within the kernel driver itself?

Thanks in advance