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WinUSB compatible device doesn't get drivers from Windows update

Guest IvanPetrov_32

By Guest IvanPetrov_32
in Operating Systems Help & Support

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Guest IvanPetrov_32

Guest IvanPetrov_32

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I have an embedded device with USB interface and I'm trying to get it working with Windows 7 without any additional drivers as described here: https://blogs.msdn.microsoft.com/usbcoreblog/2012/09/26/how-to-install-winusb-sys-without-a-custom-inf/

 

I added all necessary MS descriptors to the firmware when windows asks for them during USB enumeration, so at the end it is detected as WinUSB compatible device - USB\MS_COMP_WINUSB is shown in the device manager:

 

https://extremetechsupport.com/data/MetaMirrorCache/0eea03415f3a1bc5cf05db589b7e75e6.png

 

Now I expect Windows Update to get and install the WinUSB driver for it automatically. However this does not happen - I see that Windows contacts the update site, but does not find the driver.

 

Do you have any idea why this happens and what should I try else?

 

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