Re: [PATCH v8 0/5] MR9045: windows.devices.enumeration: Add support for device properties in DeviceInformation objects.

[Vibhav Pant (＠vibhavp)]

> But are there actual cases of device properties not known by propsys?

Hm, It depends on what you mean by "actual cases". It's definitely possible to set a custom property key for a device/device interface that is not known to propsys. Every property key in `devpropkey.h` has an associated canonical name, so the custom property syntax is meant for properties that aren't registered with propsys.