From NetBSD:

From NetBSD:

Make it possible to move a device to its unconfigured state by
using config #0.

Add some comments.

Change error reporting in port reset function.

usbd_devinfo_vp(): search the know devs array also if the device doesn't
return product description (e.g. Kye's Genius NetScroll mouse returns
vendor, but not product); the strings returned by device are still
preferred to those in the array, though