Unknown device may be listed on systems with GPIO support

Applies to: Windows 8Windows RT


On a Windows 8 or Windows RT system which has support for General-Purpose I/O (GPIO), you may notice that the following device is listed under "Unknown devices" in Device Manager:


This device only appears when you choose "View" > "Show hidden devices" in Device Manager.


This device is intentionally created by the "GPIO Button Driver" (msgpiowin32.sys).


The presence of this device is by design.