| UCS_MOST_SCKT_SYNC_DATA | Specifies the synchronous streaming data type.  | 
| UCS_MOST_SCKT_AV_PACKETIZED | Specifies the A/V Packetized Isochronous streaming data type.  | 
| UCS_MOST_SCKT_QOS_IP | Specifies the Quality of Service IP streaming data type.  | 
| UCS_MOST_SCKT_DISC_FRAME_PHASE | Specifies the DiscreteFrame Isochronous streaming phase data type.  |