libusbK.sys compared to other USB kernel drivers

libusbK.sys advantages when compared to libusb0.sys:

• Winusb-like power management.
• Winusb-like pipe policies.
• Driver-level asynchronous transfer timeouts.
• Improved isochronous transfer support.
• Newer, more robust KMDF based design.

libusbK.sys disadvantages when compared to libusb0.sys:

• Does not support multiple configurations.
• Does not support a "filter driver" mode.
• Significantly larger device driver installation packages.
• Less tolerant of usb devices which or not fully compliant with usb specifications.

libusbK.sys advantages when compared to WinUSB.sys:

• Full isochronous transfer support.
• Supports of XP64, Windows 2003, and Win2K (unofficial, see above comments)
• Supports device reset.
• Open source nature can eliminate the need for UDMF solutions.
• Allows proccesses concurrent access to the same device.
• Smaller driver installation packages.

libusbK.sys disadvantages when compared to WinUSB.sys:

• libusbK will not function as a lower filter driver of a UDMF driver as WinUSB.sys will.
• WinUSB is pre-packaged with Vista and up.
• Windows 8 has unique native support for WinUSB devices.