What is the difference between the WinUSB and nrUSB drivers?

[jorgeuriarte]

Hi there,
Following the USBOsrKitDemo samples, I have the option of loading the WinUSB or the nrUSB driver, but it is not clear what is the difference. Any help will be appreciated. Thank you.
Jorge

[Roman Novgorodov]

Hello

The most important differences are following:

1) Size
   *) nrUsb has very small size ~ 180Kb.
   *) WinUSB has very big size 11Mb.
2) API
   *) nrUsb is simple generic kernel USB driver with our original API. You can work with this driver only over nrComm Lib or nrComm NET.
   *) WinUSB is well know Microsoft framework. You can use installed WinUSB driver from other applications and projects that are compatible with WinUSB API

Roman Novgorodov
DeepSoftware LLC