Linux-2.6.33.2/net/bluetooth/rfcomm/Kconfig

config BT_RFCOMM
	tristate "RFCOMM protocol support"
	depends on BT && BT_L2CAP
	help
	  RFCOMM provides connection oriented stream transport.  RFCOMM
	  support is required for Dialup Networking, OBEX and other Bluetooth
	  applications.

	  Say Y here to compile RFCOMM support into the kernel or say M to
	  compile it as module (rfcomm).

config BT_RFCOMM_TTY
	bool "RFCOMM TTY support"
	depends on BT_RFCOMM
	help
	  This option enables TTY emulation support for RFCOMM channels.