changelog

蓝牙的各种编程接口和各种按理介绍,还有一些例子和说明

ver 2.3:
	HCI UART driver fix, don't wakeup TX if protocol is not set.
	HCI PCMCIA drivers updates and fixes.
	RFCOMM modem_status handling rewrite.
	BNEP filter initialization fix.

ver 2.3-pre4:
	RFCOMM core API extensions. RFCOMM socket locking fixes.
	Improved RFCOMM proc fs support.

ver 2.3-pre3:
	RFCOMM TTY interface support. RFCOMM core fixes.
	BCSP improvements.
	Minor USB driver fix.

ver 2.3-pre2:
	RFCOMM flow control and endianness fixes. Support for RPN messages.
	Preliminary support for BCSP protocol.
	Removed update_kernel script.
	Minor documentation update.

ver 2.3-pre1:
	New simple, flexible and efficient RFCOMM implementation.
	ACL tx timeout handling fixes.

ver 2.2:
	New simple, flexible and efficient BNEP implementation.
	Support for L2CAP connectionless channels.
	Support for 3Com Bluetooth PC Cards.
	Support for hotplug.
	Device and socket locking fixes.
	Fixed poll()/select() on connecting sockets.
	HCI USB driver module reference counting and firmware
	loading fixes.
	PCMCIA driver fixes and cleanup.

ver 2.1:
	Fixed L2CAP socket locking in PSM level security code.
	Fixed HCI filter misbehavior on 64bit platforms.
	Info and debug macros cleanup.
	Sync up with 2.4.x Linux kernel.
	Kernel L2CAP socket programing examples.
	Support for Anycom Bluetooth CF/PC cards.
	BNEP support.

ver 2.0:
	Final stable 2.0 release.
	Improved L2CAP timeout handling.

ver 2.0-pre9:
	Support for L2CAP signalling frame fragmentation.
	New HCI ioctls for changing ACL and SCO MTU.
	Minor fixes.

ver 2.0-pre8: 
	Process state handling fixes. Fixed bug in L2CAP accept loop. 
	HCI USB driver stability fixes. URB and disconnect handling rewrite. 
	HCI DTL1 driver fixes. 
	Minor cleanup. 

ver 2.0-pre7:
	Separate package for BlueZ kernel.
	Improved build environment.
	Header files cleanup.
	Killed HCI_MAX_DEV limit.
	Minor fixes and updates.

ver 2.0-pre6:
	BlueZ Core:
		SCO socket initialization fix.
		L2CAP minor connection handling fix.
		Minor HCI event processing fix.

	HCI USB driver:
		Minor URB handling fixes.
		More informative debug messages.
		Probe routine fixes.

ver 2.0-pre5:
	BlueZ Core:
		Select on accepted socket fix.
		MTU fixes.

	HCI USB driver:
		Disconnect handling fixes.
		Memory allocation fixes.

ver 2.0-pre4:
	BlueZ Core:
		HCI filter enhancements. Security fixes.
		Cleanup.

ver 2.0-pre3:
	BlueZ Core:
		Socket accept queue handling fixes and optimization.
		HCI frame time-stamps.

ver 2.0-pre2:
	BlueZ Core:
		Fixed HCI device close procedure.
		L2CAP socket locking fixes.
		Spin lock init fixes.

	HCI USB driver:
		Stability fixes (URB reuse, dev close, etc).
		
	HCI UART driver:
		Set TTY low_latency flag.

	HCI PCMCIA drivers:
		Added DTL1 driver for Nokia Bluetooth PC Cards.
	
ver 2.0-pre1:
	BlueZ Core:
		New generic HCI connection manager.
		Complete role switch and link policy support.
		Security mode 1 and 3 support.
		L2CAP service level security support.
		SCO support.
		Improved HCI device unregistration (device destructors).
		Minor fixes, cleanups and optimizations.

	New HCI USB driver:
		Performance improvements.
		Firmware loading support.
		
	New HCI UART driver:
		Support for multiple UART protocols.

ver 1.2:
	Final stable 1.2 release.
	hcid
		UART initialization moved to separate file hcid_uart.c.
		Makefile cleanup.

	misc
		Use hci_send_req timeout in hciconfig. 
		Documentation update.

ver 1.2-pre1:
	L2CAP
		Fixed routing by source address.
		Minor cleanup.

	hciconfig	
		Verbose help display.
		New commands 'name', 'class', 'version'.

	hcid
		Config file enhancements.
		More informative process title.

	libbluetooth
		Added hci_send_req function.
		Header files update.

	misc
		Fixed source address option in l2ping and l2test.
		Fixed buffer allocation in l2test.

ver 1.1:
	Final stable 1.1 release.
	Minor updates, cleanups and fixes.

ver 1.1-pre4:
	HCI Core
		Support for HCI socket filters.

	hcid	
		Support for class_of_device and local_name initialization.
		Minor fixes.

	libbluetooth
		Added hci_open_dev function.
		More HCI command definitions.
		Minor fixes.

ver 1.1-pre3:
	HCI Core
		Preliminary role switch support.
		RAW mode optimization and fixes.

	L2CAP 
		Fixed poll/select on listening socket.
	
	misc
		Separate packages for HCIDump and HCIEmu.

ver 1.1-pre2:
	HCI Core
		More generic connection handling.
		Don't notify L2CAP layer about SCO connections.
	
	L2CAP
		getsockopts fix.

	misc
		Documentation update.

ver 1.1-pre1:
	HCI Core
		Improved and simplified fragmentation handling.
		Connection handling fixes (any handle is allowed).
		Code cleanup and optimization.
		Device initialization fixes.
		Default packet type is set according to device features.
		New device ioctls.
		Cleanup for unused SCO functionality.
		Various minor fixes.
	
	HCI drivers
		hci_emu renamed to hci_vhci (virtual hci).
	
	L2CAP
		Improved and simplified fragmentation handling.
		Delayed Baseband disconnects.
		Configuration req/rsp handling fixes. 
		Timeout handling and other minor fixes.

	hciconfig
		Various cleanups and improvements.
		New commands.

	hcid
		Improved device initialization.
		Optimized config parser.
		New config options (packet type, device class, etc).
		Improved logging.
		Minor fixes.

	hciemud
		Initial implementation of HCI Emulation daemon.
		Support for essential HCI commands and events.
		Support for multiple connections over TCP.

	libbluetooth
		libhci and libbluetooth merged to one library.
		Added various mapping tables (pkt_type -> str, etc).
		Added hci_send_cmd and inquiry functions.
		Header files cleanups.
		Shared library support.

	misc
		Better cross compilation support.
		Documentation update.
	
	Due to the HCI Core and library changes all low level HCI utilities
	must be recompiled.

ver 1.0:
	Initial public release.