Channel Identifiers



Pre-defined L2CAP Channel Identifiers

Destination CID 	Protocol/usage 	Reference
0x0000 	Illegal, should not be used
0x0001 	L2CAP signalling channel
0x0002 	L2CAP connection less data
0x0003 - 0x003F 	(reserved)



Assigned Protocol and Service Multiplexor values (PSM)

Protocol 	 PSM 		Reference
SDP		 0x0001 	Bluetooth Service Discovery Protocol (SDP)
RFCOMM		 0x0003 	RFCOMM with TS 07.10
TCS-BIN 	 0x0005 	Bluetooth Telephony Control Specification
TCS-BIN-CORDLESS 0x0007 	Bluetooth Telephony Control Specification
BNEP		 0x000F 	Bluetooth Network Encapsulation Protocal
HID_Control 	 0x0011 	Human Interface Device
HID_Interrupt 	 0x0013 	Human Interface Device
UPnP 		 0x0015 	[ESDP]
AVCTP 		 0x0017 	Audio/Video Control Transport Protocol
AVDTP 		 0x0019 	Audio/Video Distribution Transport Protocol
UDI_C-Plane 	 0x001D 	Unrestricted Digital Information Profile [UDI]