Error 0x80660002

Value: -2140798974 | 0x80660002 | 2154168322

What does it mean ?

E_HDAUDIO_EMPTY_CONNECTION_LIST  
HD Audio widget encountered an unexpected empty connection list.
Value: 2 | 0x0002 | 0b0000000000000010

Where does it come from ?

FACILITY_AUDIO  
Audio
Value: 102 | 0x066 | 0b01100110

Other Errors for FACILITY_AUDIO