KSEVENTSETID_PinCapsChange
In Windows 7 and later versions of the Windows operating systems, the KSEVENTSETID_PinCapsChange event set is used by audio drivers to notify the operating system that the audio format, jack information or some other property of an audio device has changed.
The event items in this set are specified as the following KSEVENT_PINCAPS_CHANGENOTIFICATIONS enumeration values: