+/** \file
+ *
+ * This file contains special DoxyGen information for the generation of the main page and other special
+ * documentation pages. It is not a project source file.
+ */
+
+ /** \page Page_ChangeLog Project Changelog
+ *
+ * \section Sec_ChangeLogXXXXXX Version XXXXXX
+ * <b>New:</b>
+ * - Core:
+ * - None
+ * - Library Applications:
+ * - Added User Application APIs to the CDC and DFU class bootloaders
+ *
+ * <b>Changed:</b>
+ * - Core:
+ * - When automatic PLL management mode is enabled on the U4 series AVR8 chips, the PLL is now configured for 48MHz and not
+ * a divided 96MHz, to lower power consumption and to keep the system within the datasheet specs for 3.3V operation (thanks to Scott Vitale)
+ * - Library Applications:
+ * - None
+ *
+ * <b>Fixed:</b>
+ * - Core:
+ * - Fixed ring buffer size limited to 255 elements, instead of the intended 65535 elements.
+ * - Library Applications:
+ * - Added reliability patches to the AVRISP-MKII Clone project's PDI/TPI protocols (thanks to Justin Mattair)
+ * - Fixed AVRISP-MKII Clone compile warning on AVR8 U4 targets even when NO_VTARGET_DETECT is enabled
+ *
+ * \section Sec_ChangeLog111009 Version 111009
+ * <b>New:</b>
+ * - Core:
+ * - Added USE_LUFA_CONFIG_HEADER compile time option to include a LUFAConfig.h header in the user director for LUFA configuration
+ * tokens as an alternative to tokens defined in the project makefile
+ * - Added new USB_Host_SetInterfaceAltSetting() convenience function for the selection of an interface's alternative setting
+ * - Added Audio class control request definitions
+ * - Added new CALLBACK_Audio_Device_GetSetEndpointProperty() callback to the Audio Device Class driver to allow for endpoint control manipulations
+ * such as data sample rates
+ * - Added support for the Audio class GET STATUS request in the Audio Device Class driver so that it is correctly ACKed when sent by the host
+ * - Added new EVENT_Audio_Device_StreamStartStop() event to the Audio Device Class driver to detect stream start/stop events
+ * - Added board driver support for the Busware TUL board
+ * - Added board hardware driver support for the EVK1100 board
+ * - Added board hardware driver support for the EVK1104 board
+ * - Added new Host mode Audio Class driver
+ * - Added new SPI_GetCurrentMode() function to the SPI peripheral driver
+ * - Added RingBuffer_GetFreeCount() function to the Ring Buffer driver
+ * - Added new HID_Host_SetIdlePeriod() function to the HID Host Class driver
+ * - Added new USB_Host_ConfigurationNumber global variable to indicate the selected configuration in an attached device
+ * - Added new USB_Host_GetDeviceStatus() function to the host standard request function set
+ * - Added AVR USB XMEGA architecture port (currently incomplete/experimental)
+ * - Added new STRINGIFY() and STRINGIFY_EXPANDED() convenience macros
+ * - Added new JTAG_DISABLE() macro for the AVR8 architecture
+ * - Added Device Qualifier standard descriptor structure definitions USB_StdDescriptor_DeviceQualifier_t and USB_Descriptor_DeviceQualifier_t
+ * - Library Applications:
+ * - Added RNDIS device mode to the Webserver project
+ * - Added new incomplete AndroidAccessoryHost Host LowLevel demo
+ * - Added new HIDReportViewer project
+ * - Added new MediaControl project
+ * - Added new AudioInputHost Host ClassDriver demo
+ * - Added new AudioOutputHost Host ClassDriver demo
+ * - Added new AudioInputHost Host LowLevel demo
+ * - Added new AudioOutputHost Host LowLevel demo
+ * - Added new "checksource" target to all library project makefiles
+ * - Added new VTARGET_USE_INTERNAL_REF configuration option to the AVRISP-MKII clone project (thanks to Volker Bosch)
+ *
+ * <b>Changed:</b>
+ * - Core:
+ * - Altered the definition of the USB_Audio_Descriptor_Format_t descriptor so that the user is now responsible for supplying
+ * the supported audio sampling rates, to allow for multiple audio interfaces with different numbers of supported rates and/or
+ * continuous sample rates
+ * - Pipe_BoundEndpointNumber() has been renamed to Pipe_GetBoundEndpointAddress(), and now returns the correct endpoint direction
+ * as part of the endpoint address
+ * - Renamed global state variables that are specific to a certain USB mode to clearly indicate which mode the variable relates to,
+ * by changing the USB_* prefix to USB_Device_* or USB_Host_*
+ * - Removed the HOST_STATE_WaitForDeviceRemoval and HOST_STATE_Suspended host state machine states, as these are no longer required
+ * - Altered the USB_Host_SetDeviceConfiguration() function to update the global Host state machine state and the new
+ * USB_Host_ConfigurationNumber global as required
+ * - Added endian correcting code to the library USB class drivers for multiple architecture support
+ * - Removed the ENDPOINT_DESCRIPTOR_DIR_* macros, replaced by ENDPOINT_DIR_* instead
+ * - Renamed the JTAG_DEBUG_ASSERT() macro to JTAG_ASSERT()
+ * - Added variable number of axis to HID_DESCRIPTOR_JOYSTICK() for multi-axis joysticks above just X and Y
+ * - Renamed USB_Host_ClearPipeStall() to USB_Host_ClearEndpointStall() as the function works on an endpoint address within the attached device,
+ * and not a Pipe within the host
+ * - The MS_Host_ResetMSInterface() now performs a full Mass Storage reset sequence to prevent data corruption in the event of a device
+ * lock up or timeout (thanks to David Lyons)
+ * - Added endian-correction to the CDC driver's Line Encoding control request handlers.
+ * - Library Applications:
+ * - Modified the Low Level and Class Driver AudioInput and AudioOutput demos to support multiple audio sample rates
+ * - Updated all host mode demos and projects to use the EVENT_USB_Host_DeviceEnumerationComplete() event callback for device configuration
+ * instead of manual host state machine manipulations in the main application task
+ * - Changed the reports in the GenericHID device demos to control the board LEDs, to reduce user confusion over the callback routines
+ * - Added reliability patches to the AVRISP-MKII Clone project's ISP and PDI/TPI protocols (thanks to Justin Mattair)
+ *
+ * <b>Fixed:</b>
+ * - Core:
+ * - Large number of documentation and code comment corrections (thanks to Andrey from Microsin.ru)
+ * - Fixed possibility of the AVR's SPI interface being pulled out of master mode if the /SS pin is a input and pulled low (thanks
+ * to Andrey from Microsin.ru)
+ * - Fixed compile error when FIXED_CONTROL_ENDPOINT_SIZE compile time option was disabled, and a USE_*_DESCRIPTORS compile time
+ * option was not enabled on the AVR8s
+ * - Fixed lack of C++ compatibility in some internal header files causing compile errors when using LUFA in C++ projects
+ * - Fixed error in the pipe unordered allocation algorithm for the AVR8 devices breaking compatibility with some devices
+ * - Fixed USB_USBTask not being called internally in stream transfers between packets when Partial Stream Transfers are used
+ * - Fixed swapped TWI_ADDRESS_READ and TWI_ADDRESS_WRITE values
+ * - Fixed TWI_ReadPacket() not releasing the TWI bus on read completion
+ * - Fixed optimization error in the HID Parser item value USB_SetHIDReportItemInfo() and USB_GetHIDReportItemInfo() routines if the report item was
+ * \c NULL (which should be allowable according to the API)
+ * - Fixed HID Parser CALLBACK_HIDParser_FilterHIDReportItem() callback function not being passed a cacheable report item pointer
+ * - Fixed HID Parser's largest report size bit count not including the size of the last parsed report item
+ * - Fixed HID host driver's largest HID report size count corrupt when the number of report bits exceeds 255
+ * - Library Applications:
+ * - Fixed incorrect signature in the CDC and DFU class bootloaders for the ATMEGA8U2
+ * - Fixed KeyboardHost and KeyboardHostWithParser demos displaying incorrect values when numerical keys were pressed
+ * - Fixed compile errors in the incomplete BluetoothHost demo application (thanks to Timo Lindfors)
+ * - Fixed incorrect Dataflash buffer use in the DataflashManager_WriteBlocks_RAM() function of several demos/projects (thanks to Jeremy Willden)
+ * - Fixed incorrect logging interval (always 500ms longer than requested) in the TempDataLogger project
+ * - Fixed incorrect buffer size check in the USBtoSerial project (thanks to Yuri A Nikiforov)
+ * - Fixed port state table corruption in the TCP layer of the RNDIS Ethernet device demos
+ *
+ * \section Sec_ChangeLog110528 Version 110528
+ * <b>New:</b>
+ * - Core:
+ * - Added new ORDERED_EP_CONFIG compile time option to restrict endpoint/pipe configuration to ascending order
+ * in exchange for a smaller compiled program binary size
+ * - Added a new general RingBuff.h miscellaneous ring buffer library driver header
+ * - Added new GCC_FORCE_POINTER_ACCESS() macro to correct GCC's mishandling of struct pointer accesses
+ * - Added new GCC_MEMORY_BARRIER() macro to prevent instruction reordering across boundaries
+ * - Added basic driver example use code to the library documentation
+ * - Added new Endpoint_Null_Stream() and Pipe_Null_Stream() functions
+ * - Added new ADC_GET_CHANNEL_MASK() convenience macro
+ * - Added new HID report item macros (with HID_RI_ prefix) to allow for easy creation and editing of HID report descriptors
+ * - Added new HID_DESCRIPTOR_MOUSE(), HID_DESCRIPTOR_KEYBOARD(), HID_DESCRIPTOR_JOYSTICK() and HID_DESCRIPTOR_VENDOR() macros
+ * for easy automatic creation of basic USB HID device reports
+ * - Added new MAX() and MIN() convenience macros
+ * - Added new Serial_SendData() function to the Serial driver
+ * - Added board driver support for the Sparkfun ATMEGA8U2 breakout board
+ * - Added TWI baud rate prescaler and bit length parameters to the TWI_Init() function (thanks to Thomas Herlinghaus)
+ * - Internal restructuring for eventual multiple architecture ports
+ * - Added AVR32 UC3 architecture port (currently incomplete/experimental)
+ * - Added new architecture independent functions to enable, disable, save and restore the Global Interrupt Enable flags
+ * - Added new RNDIS Device Class Driver packet send and receive functions
+ * - Library Applications:
+ * - Added ability to write protect Mass Storage disk write operations from the host OS
+ * - Added new MIDIToneGenerator project
+ * - Added new KeyboardMouseMultiReport Device ClassDriver demo
+ * - Added new VirtualSerialMassStorage Device ClassDriver demo
+ * - Added HID class bootloader, compatible with a modified version of the command line Teensy loader from PJRC.com
+ * - Added LED flashing to the CDC and DFU class bootloaders to indicate when they are running
+ *
+ * <b>Changed:</b>
+ * - Core:
+ * - Unordered Endpoint/Pipe configuration is now allowed once again by default via the previous reconfig workaround
+ * - Refactored Host mode Class Driver *_Host_ConfigurePipes() routines to be more space efficient when compiled
+ * - Added new *_ENUMERROR_PipeConfigurationFailed error codes for the *_Host_ConfigurePipes() routines
+ * - The USARTStream global is now public and documented in the SerialStream module, allowing for the serial USART
+ * stream to be accessed via its handle rather than via the implicit stdout and stdin streams
+ * - The FAST_STREAM_TRANSFERS compile time option has been removed due to lack of use and low cost/benefit ratio
+ * - Altered all endpoint/pipe stream transfers so that the new BytesProcessed parameter now points to a location
+ * where the number of bytes in the transfer that have been completed can be stored (or NULL if entire transaction
+ * should be performed in one chunk)
+ * - The NO_STREAM_CALLBACKS compile time option has now been removed due to the new partial stream transfer feature
+ * - Changed over all project and demo HID report descriptors to use the new HID report item macros
+ * - Moved the HIDParser.c source file to the LUFA/Drivers/USB/Class/Common/ directory from the LUFA/Drivers/USB/Class/Host/
+ * - Added support to the HID parser for extended USAGE items that contain the usage page as well as the usage index
+ * - Removed the SerialStream driver, rolled functionality into the regular Serial peripheral driver via the new
+ * Serial_CreateStream() and Serial_CreateBlockingStream() functions
+ * - Renamed the low level Serial byte send/receive functions, to be consistent with the CDC class driver byte functions
+ * - Altered the behaviour of the serial byte reception function so that is is non-blocking, and now returns a negative
+ * value if no character is received (to remain consistent with the CDC class driver byte reception routines)
+ * - Renamed the PRNT_Host_SendString(), CDC_Host_SendString() and CDC_Device_SendString() functions to *_SendData(), and
+ * added new versions of the *_SendString() routines that expect a null terminated string instead
+ * - Renamed all driver termination *_ShutDown() functions to the more logical name *_Disable()
+ * - Reduced latency for executing the Start-Of-Frame events (if enabled in the user application)
+ * - Removed Pipe_ClearErrorFlags(), pipe error flags are now automatically cleared when Pipe_ClearError() is called
+ * - Endpoint_ResetFIFO() renamed to Endpoint_ResetEndpoint(), to be consistent with the Pipe_ResetPipe() function name
+ * - Implemented on-demand PLL clock generation for the U4, U6 and U7 series USB AVRs when automatic PLL mode is specified
+ * - F_CLOCK changed to F_USB to be more descriptive, and applicable on future architecture ports
+ * - Renamed all low level Endpoint_Read_*, Endpoint_Write_* and Endpoint_Discard_* functions to use the number of bits instead of
+ * a symbolic size (Byte, Word, DWord) so that the function names are applicable and correct across all architectures
+ * - Renamed all low level Pipe_Read_*, Pipe_Write_* and Pipe_Discard_* functions to use the number of bits instead of
+ * a symbolic size (Byte, Word, DWord) so that the function names are applicable and correct across all architectures
+ * - Separated out board drivers by architecture in the library internals for better organisation
+ * - Library Applications:
+ * - Changed the XPLAINBridge software UART to use the regular timer CTC mode instead of the alternative CTC mode
+ * via the Input Capture register, to reduce user confusion
+ * - Combined page and word ISP programming mode code in the AVRISP-MKII clone project to reduce compiled size and
+ * increase maintainability of the code
+ * - Changed over library projects to use the new general ring buffer library driver module
+ * - Added new high level TWI packet read/write commands, altered behaviour of the TWI_StartTransmission() function
+ * - Changed TempDataLogger project's DS1307 driver to simplify the function interface and prevent a possible race condition
+ * - Changed AVRISP-MKII project to use the Watchdog interrupt for command timeouts, to reduce CPU usage and free timer 0
+ * for other uses
+ * - Updated the software USART code in the XPLAIN Bridge application so that the incoming bits are sampled at their mid-point
+ * instead of starting point, to give maximum reliability (thanks to Anton Staaf)
+ *
+ * <b>Fixed:</b>
+ * - Core:
+ * - Fixed broken USBFOO board drivers due to missing BOARD_USBFOO define
+ * - Fixed HID host class driver incorrectly binding to HID devices that do not have an OUT endpoint
+ * - Fixed incorrect definition of the HID_KEYBOARD_SC_D constant in the HID class driver (thanks to Opendous Inc.)
+ * - Fixed incorrect definition of the HID_KEYBOARD_SC_RIGHT_ARROW constant in the HID class driver (thanks to Joby Taffey)
+ * - Fixed incorrect endpoint initialisation order in the several device demos (thanks to Rick Drolet)
+ * - Fixed inverted Minimus board LEDs
+ * - Fixed incorrect byte ordering in the Audio_Device_WriteSample24 function (thanks to WZab)
+ * - Fixed several functions in the Host mode Still Image Class driver returning an error code from the incorrect
+ * error code enum (thanks to Daniel Seibert)
+ * - Fixed ReportID not being removed from the feature/out report data array in the HID class driver when Report IDs are used
+ * - Fixed incorrect BUTTONS_BUTTON1 definition for the Minimus board
+ * - Fixed Still Image Host class driver exiting the descriptor search routine prematurely if the data pipes (but not event pipe)
+ * is found
+ * - Fixed missing call to Pipe_SetInfiniteINRequests() in the Pipe_ConfigurePipe() routine
+ * - Fixed Remote Wakeup broken on the AVRs due to the mechanism only operating when the SUSPI bit is set (thanks to Holger Steinhaus)
+ * - Fixed possible invalid program execution when in host mode if corrupt descriptor lengths are supplied by the attached device
+ * - Library Applications:
+ * - Fixed Benito project discarding incoming data from the USB virtual serial port when the USART is busy
+ * - Fixed broken DFU bootloader, added XPLAIN support for bootloader start when XCK jumpered to ground
+ * - Fixed broken HID_REQ_GetReport request handler in the Low Level GenericHID demo
+ * - Fixed possible lost data in the XPLAINBridge, USBtoSerial and Benito projects when the host exceeds the packet
+ * timeout period on received packets as set by USB_STREAM_TIMEOUT_MS (thanks to Justin Rajewski)
+ * - Fixed possible programming problem in the AVRISP-MKII clone project when programming specific patterns into a target
+ * memory space that is only byte (not page) addressable
+ * - Fixed errors in the incomplete Test and Measurement device demo preventing proper operation (thanks to Pavel Plotnikov)
+ * - Fixed programming errors in the AVRISP-MKII project when the programming packet is a round multiple of the endpoint bank
+ * size under avrdude (thanks to Steffan Woltjer)
+ *
+ *
+ * \section Sec_ChangeLog101122 Version 101122
+ * <b>New:</b>
+ * - Core:
+ * - Added new SCSI_ASENSE_NOT_READY_TO_READY_CHANGE constant to the Mass Storage class driver, to indicate when a previously
+ * not ready removable medium has now become ready for the host's use (thanks to Martin Degelsegger)
+ * - Moved the Pipe and Endpoint stream related code to two new USB library core source files EndpointStream.c and PipeStream.c
+ * - Added new USB_Device_GetFrameNumber() and USB_Host_GetFrameNumber() functions to retrieve the current USB frame number
+ * - Added new USB_Host_EnableSOFEvents(), USB_Host_DisableSOFEvents() and EVENT_USB_Host_StartOfFrame() for the user application
+ * handling of USB Start of Frame events while in USB Host mode
+ * - Added new PRNT_Host_BytesReceived(), PRNT_Host_ReceiveByte(), PRNT_Host_SendByte() and PRNT_Host_Flush() functions to the
+ * Print Host Class driver
+ * - Added class specific descriptor alternative struct type defines with standard USB-IF element naming
+ * - Added new project makefile template to the library and moved board driver stub files into in a new "CodeTemplates" directory
+ * - Added board hardware driver support for the Adafruit U4 breakout board
+ * - Added board hardware driver support for the Arduino Uno development board
+ * - Added board hardware driver support for the Blackcat USB JTAG board (thanks to the PSGroove team)
+ * - Added board hardware driver support for the Busware BUI development board
+ * - Added board hardware driver support for the Busware CUL V3 868MHZ radio board (thanks to Dirk Tostmann)
+ * - Added board hardware driver support for the Kernel Concepts USBFOO development board
+ * - Added board hardware driver support for the Linnix UDIP development board
+ * - Added board hardware driver support for the Olimex AVR-USB-162 development board (thanks to Steve Fawcett)
+ * - Added board hardware driver support for the Maximus board (thanks to the PSGroove team)
+ * - Added board hardware driver support for the Microsin AVR-USB162 breakout board
+ * - Added board hardware driver support for the Minimus board (thanks to the PSGroove team)
+ * - Added new NO_CLASS_DRIVER_AUTOFLUSH compile time option to disable automatic flushing of interfaces when the USB management
+ * tasks for each driver is called
+ * - Added standard keyboard HID report scan-code defines (thanks to Laszlo Monda)
+ * - Added new Pipe_GetBusyBanks(), Endpoint_GetBusyBanks() and Endpoint_AbortPendingIN() functions
+ * - Library Applications:
+ * - Added default test tone generation mode to the Device mode AudioInput demos
+ * - Added new NO_BLOCK_SUPPORT, NO_EEPROM_BYTE_SUPPORT, NO_FLASH_BYTE_SUPPORT and NO_LOCK_BYTE_WRITE_SUPPORT compile time options to the
+ * CDC class bootloader
+ * - Added new XCK_RESCUE_CLOCK_ENABLE compile time option to the AVRISP-MKII clone programmer project (thanks to Tom Light)
+ *
+ * <b>Changed:</b>
+ * - Core:
+ * - Removed complicated logic for the Endpoint_ConfigureEndpoint() function to use inlined or function called versions
+ * depending of if the given bank size is a compile time constant, as the compiler does a better job of optimizing
+ * with basic code
+ * - Changed the signature of the CALLBACK_USB_GetDescriptor() callback function so that the descriptor pointer is const, to remove
+ * the need for extra casting inside the callback (thanks to Jonathan Kollasch)
+ * - Reduced HOST_DEVICE_SETTLE_DELAY_MS to 1000ms down from 1500ms to improve device compatibility while in USB Host mode
+ * - Removed the EVENT_USB_InitFailure() event, not specifying a USB mode correctly now defaults to UID selection mode
+ * - Renamed and moved class driver common constant definitions to make the naming scheme more uniform
+ * - Moved the USB mode specifier constants into a new enum, so that they are semantically related to one another
+ * - Renamed ENDPOINT_DOUBLEBANK_SUPPORTED() to ENDPOINT_BANKS_SUPPORTED() and changed it to return the maximum number of supported banks for
+ * the given endpoint
+ * - Better algorithm to extract and convert the internal device serial number into a string descriptor (if present)
+ * - All USB class drivers are now automatically included when LUFA/Drivers/USB.h is included, and no longer need to be separately included
+ * - The MIDI class drivers now automatically flushes the MIDI interface when the MIDI class driver's USBTask() function is called
+ * - Renamed the EVENT_USB_Device_UnhandledControlRequest() event to EVENT_USB_Device_ControlRequest() as it is now fired before the library
+ * request handlers, not afterwards
+ * - Library Applications:
+ * - Changed over all device demos to use a clearer algorithm for the configuring of the application's endpoints
+ * - Added missing DataflashManager_CheckDataflashOperation() function to the MassStorageKeyboard demo, removed redundant
+ * SCSI_Codes.h file as these values are part of the MassStorage Class Driver
+ * - Added compile time error to the AVRISP-MKII project when built for the U4 chips, as the default VTARGET detection ADC channel
+ * does not exist on these chips (thanks to Marco)
+ * - Changed all Device mode LowLevel demos and Device Class drivers so that the control request is acknowledged and any data
+ * transferred as quickly as possible without any processing in between sections, so that long callbacks or event handlers will
+ * not break communications with the host by exceeding the maximum control request stage timeout period
+ * - Changed over all demos, drivers and internal functions to use the current frame number over the Start of Frame flag where possible
+ * to free up the Start of Frame flag for interrupt use in the user application
+ * - All project makefiles now correctly clean intermediate build files from assembly and C++ sources (thanks to Daniel Czigany)
+ * - Changed default value for the reset polarity parameter in the AVRISP-MKII project so that it defaults to active low drive
+ * - Changed configuration descriptor parser for all host mode projects and class drivers to ensure better compatibility with devices
+ * - All LowLevel demos changed to use the constants and types defined in the USB class drivers
+ * - Changed AudioInput and AudioOutput demos to reload the next sample via an interrupt rather than polling the sample timer
+ * - Rescue clock of the AVRISP-MKII moved to the AVR's OCR1A pin, so that the clock can be generated at all times
+ * - Changed ClassDriver MIDI demos to process all incoming events in a loop until the bank becomes empty rather than one at a time
+ * - Changed LowLevel MIDI demos to only clear the incoming event bank once it has become empty to support packed event packets
+ *
+ * <b>Fixed:</b>
+ * - Core:
+ * - Fixed USB_GetHIDReportItemInfo() function modifying the given report item's data when the report item does not exist
+ * within the supplied report of a multiple report HID device
+ * - Fixed critical pipe/endpoint memory allocation issue where the bank memory address space could be silently overlapped
+ * in the USB controller if the endpoints or pipes were allocated in anything other than ascending order (thanks to Martin Degelsegger)
+ * - Added LEDs_ToggleLEDs() function to several board LED drivers which were missing it (thanks to Andrei Krainev)
+ * - Fixed SET FEATURE and CLEAR FEATURE control requests directed at an unconfigured endpoint causing request timeouts
+ * - Fixed USB_Host_ClearPipeStall() incorrectly determining the endpoint direction from the currently selected pipe
+ * - Fixed JTAG_DEBUG_POINT() and JTAG_DEBUG_BREAK() macros not compiling under pure C99 standards mode
+ * - Fixed endpoint selection within the CALLBACK_HID_Device_CreateHIDReport() callback function causing broken GET REPORT requests
+ * - Fixed incorrect command name for EEPROM memory programming in the makefile dfu-ee target
+ * - Fixed incorrect LEDs_ChangeLEDs() function in the Benito board LED driver
+ * - Fixed incorrect USB_DeviceState value when unconfiguring the device without an address set
+ * - Fixed SPI driver not explicitly setting /SS and MISO pins as inputs when SPI_Init() is called
+ * - Fixed random enumeration failure while in device mode due to interrupts causing the Set Address request to exceed maximum timings
+ * - Fixed MIDI_Host_Flush() not aborting early when the specified MIDI host interface was not configured
+ * - Fixed MIDI class driver send routines silently discarding packets if the endpoint or pipe is busy (thanks to Robin Green)
+ * - Library Applications:
+ * - Fixed MassStorage based demos and projects resetting the SCSI sense values before the command is executed, leading to
+ * missed SCSI sense values when the host retrieves the sense key (thanks to Martin Degelsegger)
+ * - Fixed USBtoSerial and Benito project SetLineEncoding calls failing if the USART is busy, due to the RX ISR delaying the control
+ * request handler
+ * - Fixed LowLevel PrinterHost demo not sending control requests to the attached printer with the correct printer interface wIndex value
+ * - Fixed incorrect signature reported in the CDC class bootloader for the ATMEGA32U2
+ * - Fixed BootloaderCDC project failing on some operating systems due to removed Line Encoding options (thanks to Alexey Belyaev)
+ * - Fixed broken FLASH/EEPROM programming in the AVRISP-MKII clone project when writing in non-paged mode and the polling byte cannot be used
+ * - Fixed ISR definition conflict in the XPLAIN bridge between the software UART and the AVRISP-MKII ISP modules
+ * - Fixed USBtoSerial and XPLAINBridge demos discarding data from the PC if the send buffer becomes full
+ * - Fixed broken input in the MagStripe reader project due to an incorrect HID report descriptor
+ * - Fixed incorrect PollingIntervalMS values in the demo/project/bootloader endpoint descriptors (thanks to MCS Electronics)
+ * - Fixed AVRISP-MKII clone project not starting the target's program automatically after exiting TPI programming mode
+ *
+ *
+ * \section Sec_ChangeLog100807 Version 100807
+ * <b>New:</b>
+ * - Added new ADC_DisableChannel() function (thanks to Mich Davis)
+ * - Added new VTARGET_REF_VOLTS and VTARGET_SCALE_FACTOR compile time defines to the AVRISP-MKII programmer project to set
+ * the VTARGET reference voltage and scale factor
+ * - Added new pgm_read_ptr() macro to Common.h for reading of pointers out of flash memory space
+ * - Added new SWAPENDIAN_16() and SWAPENDIAN_32() macros to Common.h for statically initialized variables at compile time
+ * - Added new Drivers/USB/LowLevel/Device.c file to house Device mode specific functions that are more complicated than simple macros
+ * - Added new AVRStudio 4 project files for all library demos, projects and bootloaders
+ * - Added ability to set the serial baud rate via the user's terminal in the XPLAINBridge project
+ * - Added new LUFA module variables for the different source modules in the core library makefile to simplify project makefiles
+ * - Added start of a new Test and Measurement class demo (thanks to Peter Lawrence)
+ * - Added new SPI_ORDER_* data order masks to the SPI peripheral driver
+ * - Added support to the AVRISP-MKII project for ISP speeds slower than 125KHz via a new software SPI driver
+ * - Added support for the new button/LED on the latest model USBTINY-MKII
+ *
+ * <b>Changed:</b>
+ * - The RingBuff library code has been replaced in the XPLAINBridge, Benito and USBtoSerial projects with an ultra lightweight
+ * ring buffer to help improve the reliability of the projects
+ * - The EEPROM stream read/write functions now use eeprom_update_byte() instead of eeprom_write_byte(), so that only
+ * changed bytes are written to EEPROM to preserve its lifespan
+ * - Changed over the AVRISP-MKII and TemperatureDataLogger projects to use eeprom_update_byte() when writing non-volatile
+ * parameters to EEPROM to preserve its lifespan
+ * - Removed unused line encoding data and control requests from the CDC Bootloader code, to save space
+ * - Renamed SERIAL_STREAM_ASSERT() macro to STDOUT_ASSERT()
+ * - The USB_Device_IsRemoteWakeupSent() and USB_Device_IsUSBSuspended() macros have been deleted, as they are now obsolete
+ * - Rewrote the implementation of the SwapEndian_16() and SwapEndian_32() functions so that they compile down in most instances to
+ * minimal loads and stores rather than complicated shifts
+ * - The software UART in the XPLAINBridge has been largely altered to try to improve upon its performance and reliability
+ * - The USBtoSerial and Benito projects now flushes received data via a flush timer, so that several bytes can be transmitted at once
+ * - Removed the automated checking of event names in the demo, project and bootloader makefiles due to inconsistencies between the
+ * behaviour of the command line tools used to perform the check on each platform
+ * - Internal USB driver source files renamed and moved to ease future possible architecture ports
+ * - All internal pseudo-function macros have been converted to true inline functions for type-safety and readability
+ * - Changed LED indicator masks for the AVRISP-MKII project, so that there are defined roles for each LED
+ * - Altered the CDC Device and Host Class drivers' receive byte routines, so that no data is indicated by the function returning a
+ * negative value (thanks to Andreas Paulin)
+ * - Added auto flushing of OUT data to the CDC Host Class driver's USBTask function to automatically flush the send pipe buffer
+ *
+ * <b>Fixed:</b>
+ * - Fixed AVRISP project sending a LOAD EXTENDED ADDRESS command to 128KB AVRs after programming or reading from
+ * the last page of FLASH (thanks to Gerard Sexton)
+ * - Fixed AVRISP project not sending a full erase-and-write EEPROM command to XMEGA targets when writing to the EEPROM
+ * instead of the split write-only command (thanks to Tim Margush)
+ * - Fixed RNDISEthernet demos crashing when calculating checksums for Ethernet/TCP packets of more than ~500 bytes due to
+ * an overflow in the checksum calculation loop (thanks to Kevin Malec)
+ * - Fixed XPLAINBridge project not correctly reading the XMEGA's supply voltage when reporting back to the host
+ * - Fixed incorrect signature for the ATMEGA32U2 in the DFU bootloader (thanks to Axel Rohde)
+ * - Fixed internal device serial not being accessible on the ATMEGAXXU2 AVRs (thanks to Axel Rohde)
+ * - Fixed void pointer arithmetic in ConfigDescriptor.h breaking C++ compatibility (thanks to Michael Hennebry)
+ * - Fixed broken PDI EEPROM Section Erase functionality in the AVRISP-MKII project
+ * - Fixed USB_Device_SendRemoteWakeup() not working when the USB clock was frozen during USB bus suspend (thanks to Brian Dickman)
+ * - Fixed occasional lockup of the AVRISP project due to the timeout extension code incorrectly extending the timeout in
+ * PDI and TPI programming modes infinitely
+ * - Fixed HID device class driver still using PrevReportINBuffer for GetReport control requests even when it has been
+ * set to NULL by the user application (thanks to Axel Rohde)
+ * - Fixed MIDI_Device_SendEventPacket() not correctly waiting for the endpoint to become ready (thanks to Robin Green)
+ * - Fixed Benito and USBtoSerial projects not turning off the USART before reconfiguring it, which could cause incorrect
+ * operation to occur (thanks to Bob Paddock)
+ * - Fixed Serial peripheral driver not turning off the USART before reconfiguring it, which would cause incorrect operation
+ * to occur (thanks to Bob Paddock)
+ * - Fixed software application start command broken in the DFU class bootloader when dfu-programmer is used due to application
+ * start address corruption
+ *
+ *
+ * \section Sec_ChangeLog100513 Version 100513
+ * <b>New:</b>
+ * - Added incomplete MIDIToneGenerator project
+ * - Added new Relay Controller Board project (thanks to OBinou)
+ * - Added board hardware driver support for the Teensy, USBTINY MKII, Benito and JM-DB-U2 lines of third party USB AVR boards
+ * - Added new ATTR_NO_INIT variable attribute for global variables that should not be automatically cleared on startup
+ * - Added new ENDPOINT_*_BusSuspended error code to the Endpoint function, so that the stream functions early-abort if the bus
+ * is suspended before or during a transfer
+ * - Added new EVENT_CDC_Device_BreakSent() event and CDC_Host_SendBreak() function to the Device and Host CDC Class drivers
+ * - Added ReportType parameter to the HID device class driver CALLBACK_HID_Device_ProcessHIDReport() function so that FEATURE
+ * reports from the host to the device can be correctly processed
+ * - Added ReportType parameter to the HID host class driver HID_Host_SendReportByID() function so that FEATURE reports can be
+ * issued to the attached device
+ *
+ * <b>Changed:</b>
+ * - AVRISP programmer project now has a more robust timeout system
+ * - Added a timeout value to the TWI_StartTransmission() function, within which the addressed device must respond
+ * - Webserver project now uses the board LEDs to indicate the current IP configuration state
+ * - Added ENABLE_TELNET_SERVER compile time option to the Webserver project to disable the TELNET server if desired
+ * - Increased throughput of the USBtoSerial demo on systems that send multiple bytes per packet (thanks to Opendous Inc.)
+ * - Double bank CDC endpoints in the XPLAIN Bridge project, re-enable JTAG once the mode selection pin has been sampled.
+ * - Standardized the naming scheme given to configuration descriptor sub-elements in the Device mode demos, bootloaders
+ * and projects
+ * - All Class Driver Host mode demos now correctly set the board LEDs to READY once the enumeration process has completed
+ * - Added LIBUSB_FILTERDRV_COMPAT compile time option to the AVRISP programmer project to make the code compatible with Windows
+ * builds of avrdude at the expense of AVRStudio compatibility
+ * - Removed two-step endpoint/pipe bank clear and switch sequence for smaller, faster endpoint/pipe code
+ * - The USB_Init() function no longer calls sei() - the user is now responsible for enabling interrupts when they are ready
+ * for them to be enabled (thanks to Andrei Krainev)
+ * - The Audio_Device_IsSampleReceived() and Audio_Device_IsReadyForNextSample() functions are now inline, to reduce overhead
+ * - Removed the cast to uint16_t on the set baud rate in the USBtoSerial project, so that the higher >1M baud rates can be
+ * selected (thanks to Steffan Woltjer)
+ * - Removed software PDI and TPI emulation from the AVRISP-MKII clone project as it was very buggy and slow - PDI and TPI must
+ * now be implemented via separate programming headers
+ * - The CDC class bootloader now uses a watchdog reset rather than a soft-reset when exited to ensure that all hardware is
+ * properly reset to their defaults
+ * - Device mode class driver callbacks are now fired before the control request status stage is sent to prevent the host from
+ * timing out if another request is immediately fired and the device has a lengthy callback routine
+ * - The TeensyHID bootloader has been removed, per request from Paul at PJRC
+ * - The LIBUSB_FILTERDRV_COMPAT compile time option in the XPLAINBridge and AVRISP-MKII projects has been renamed
+ * LIBUSB_DRIVER_COMPAT, as it applies to all software on all platforms using the libUSB driver
+ *
+ * <b>Fixed:</b>
+ * - Fixed possible device lockup when INTERRUPT_CONTROL_ENDPOINT is enabled and the control endpoint is not properly
+ * selected when the ISR completes
+ * - Fixed AVRISP-MKII clone project not correctly issuing LOAD EXTENDED ADDRESS commands when the extended address
+ * boundary is crossed during programming or read back (thanks to Gerard Sexton)
+ * - Fixed warnings when building the AVRISP-MKII clone project with the ENABLE_XPROG_PROTOCOL compile time option disabled
+ * - Fixed software PDI/TPI programming mode in the AVRISP project not correctly toggling just the clock pin
+ * - Fixed TWI_StartTransmission() corrupting the contents of the GPIOR0 register
+ * - Fixed TWI driver not aborting when faced with no response after attempting to address a device on the bus
+ * - Fixed ADC routines not correctly returning the last result when multiple channels were read
+ * - Fixed ADC routines failing to read the extended channels (Channels 8 to 13, Internal Temperature Sensor) on the
+ * U4 series USB AVR parts
+ * - Fixed LowLevel MassStorage demo broken on the U2 series USB AVRs due to unsupported double-banked endpoint modes used
+ * - Fixed compilation error in the AudioInput demos when MICROPHONE_BIASED_TO_HALF_RAIL is defined (thanks to C. Scott Ananian)
+ * - Fixed incorrect definition of HID_ALIGN_DATA() causing incorrect HID report item data alignment
+ * - Fixed Still Image Host class driver not resetting the transaction ID when a new session is opened, fixed driver not sending
+ * a valid session ID to the device
+ * - Removed invalid dfu and flip related targets from the bootloaders - bootloaders can only be replaced with an external programmer
+ * - Fixed Set/Clear Feature requests directed to a non-configured endpoint not returning a stall to the host
+ * - Fixed HID Device Class Driver not allocating a temporary buffer when the host requests a report via the control endpoint and the
+ * user has set the PrevReportINBuffer driver configuration element to NULL (thanks to Lars Noschinski)
+ * - Fixed device state not being reset to DEVICE_STATE_Default if the host sets a 0x00 device address
+ * - Fixed device not stalling configuration requests before the device's address has been set
+ * - Fixed possibility of internal signature retrieval being corrupted if an interrupt occurs during a signature byte
+ * read (thanks to Andrei Krainev)
+ * - Fixed device state not being reset back to the default state if the host sets the address to 0
+ * - Fixed Set Configuration requests not being stalled until the host has set the device's address
+ * - Fixed Host mode HID class driver not sending the correct report type when HID_Host_SendReportByID() was called and the
+ * HID_HOST_BOOT_PROTOCOL_ONLY compile time option is set
+ * - Fixed INTERRUPT_CONTROL_ENDPOINT compile time option preventing other interrupts from occurring while the control endpoint
+ * request is being processed, causing possible lockups if a USB interrupt occurs during a transfer
+ * - Remove incorrect Abstract Call Management class specific descriptor from the CDC demos, bootloaders and projects
+ *
+ *
+ * \section Sec_ChangeLog100219 Version 100219
+ *
+ * <b>New:</b>
+ * - Added TPI programming support for 6-pin ATTINY devices to the AVRISP programmer project (thanks to Tom Light)
+ * - Added command timeout counter to the AVRISP project so that the device no longer freezes when incorrectly connected
+ * to a target
+ * - Added new TemperatureDataLogger application, a USB data logger which writes to the device's dataflash and appears to
+ * the host as a standard Mass Storage device when inserted
+ * - Added MIDI event packing support to the MIDI Device and Host mode Class drivers, allowing for multiple MIDI events to
+ * sent or received in packed form in a single USB packet
+ * - Added new MIDI send buffer flush routines to the MIDI Device and Host mode Class drivers, to flush packed events
+ * - Added master mode hardware TWI driver for easy TWI peripheral control
+ * - Added ADC MUX masks for the standard ADC input channels on all AVR models with an ADC, altered demos to use these masks
+ * as on some models, the channel number is not identical to its single-ended ADC MUX mask
+ * - New Webserver project, a RNDIS host USB webserver using the open source uIP TCP/IP network stack and FatFS library
+ * - New BOARD value option BOARD_NONE (equivalent to not specifying BOARD) which will remove all board hardware drivers which
+ * do not adversely affect the code operation (currently only the LEDs driver)
+ * - Added keyboard modifier masks (HID_KEYBOARD_MODIFER_*) and LED report masks (KEYBOARD_LED_*) to the HID class driver and
+ * Keyboard demos
+ * - Added .5MHz recovery clock to the AVRISP programmer project when in ISP programming mode to correct mis-set fuses
+ *
+ * <b>Changed:</b>
+ * - Slowed down software USART carried PDI programming in the AVRISP project to prevent transmission errors
+ * - Renamed the AVRISP project folder to AVRISP-MKII to reduce confusion
+ * - Renamed the RESET_LINE_* makefile tokens in the AVRISP MKII Project to AUX_LINE_*, as they are not always used for target
+ * reset
+ * - Changed over the MassStorageKeyboard Class driver device demo to use Start of Frame events rather than a timer to keep track
+ * of elapsed milliseconds
+ * - Inlined currently unused (but standardized) maintenance functions in the Device and Host Class drivers to save space
+ * - The XPLAINBridge project now selects between a USB to Serial bridge and a PDI programmer on startup, reading the JTAG port's
+ * TDI pin to determine which mode to use
+ * - Removed the stream example code from the Low Level VirtualSerial demos, as they were buggy and only served to add clutter
+ *
+ * <b>Fixed:</b>
+ * - Fixed AVRISP project not able to enter programming mode when ISP protocol is used
+ * - Fixed AVRISP PDI race condition where the guard time between direction changes could be interpreted as a start bit
+ * - Fixed ADC_IsReadingComplete() returning an inverted result
+ * - Fixed blocking CDC streams not aborting when the host is disconnected
+ * - Fixed XPLAIN board Dataflash driver broken due to incorrect preprocessor commands
+ * - Fixed inverted XPLAIN LED driver output (LED turned on when it was supposed to be turned off, and vice-versa)
+ * - Fixed Class Driver struct interface numbers in the KeyboardMouse and VirtualSerialMouse demos (thanks to Renaud Cerrato)
+ * - Fixed invalid USB controller PLL prescaler values for the ATMEGAxxU2 controllers
+ * - Fixed lack of support for the ATMEGA32U2 in the DFU and CDC class bootloaders
+ * - Fixed Benito project not resetting the target AVR automatically when programming has completed
+ * - Fixed DFU bootloader programming not discarding the correct number of filler bytes from the host when non-aligned programming
+ * ranges are specified (thanks to Thomas Bleeker)
+ * - Fixed CDC and RNDIS host demos and class drivers - bidirectional endpoints should use two separate pipes, not one half-duplex pipe
+ * - Fixed Pipe_IsEndpointBound() not taking the endpoint's direction into account
+ * - Fixed EEPROM and FLASH ISP programming in the AVRISP project
+ * - Fixed incorrect values of USB_CONFIG_ATTR_SELFPOWERED and USB_CONFIG_ATTR_REMOTEWAKEUP tokens (thanks to Claus Christensen)
+ * - Fixed SerialStream driver blocking while waiting for characters to be received instead of returning EOF
+ * - Fixed SerialStream driver not setting stdin to the created serial stream (thanks to Mike Alexander)
+ * - Fixed USB_GetHIDReportSize() returning the number of bits in the specified report instead of bytes
+ * - Fixed AVRISP project not extending the command delay after each successful page/word/byte program
+ * - Fixed accuracy of the SERIAL_UBBRVAL() and SERIAL_2X_UBBRVAL() macros for higher baud rates (thanks to Renaud Cerrato)
+ *
+ *
+ * \section Sec_ChangeLog091223 Version 091223
+ *
+ * <b>New:</b>
+ * - Added activity LED indicators to the AVRISP project to indicate when the device is busy processing a command
+ * - The USB target family and allowable USB mode tokens are now public and documented (USB_CAN_BE_*, USB_SERIES_*_AVR)
+ * - Added new XPLAIN USB to Serial Bridge project (thanks to John Steggall for initial proof-of-concept, David Prentice
+ * and Peter Danneger for revised software USART code)
+ * - Added new RNDIS Ethernet Host LowLevel demo
+ * - Added new RNDIS Ethernet Host Class Driver
+ * - Added new RNDIS Ethernet Host ClassDriver demo
+ * - Added CDC_Host_Flush() function to the CDC Host Class driver to flush sent data to the attached device
+ * - Added PDI programming support for XMEGA devices to the AVRISP programmer project (thanks to Justin Mattair)
+ * - Added support for the XPLAIN board Dataflash, with new XPLAIN_REV1 board target for the different dataflash used
+ * on the first revision boards compared to the one mounted on later revisions
+ * - Added new HID_ALIGN_DATA() macro to return the pre-retrieved value of a HID report item, left-aligned to a given datatype
+ * - Added new PreviousValue to the HID Report Parser report item structure, for easy monitoring of previous report item values
+ * - Added new EVK527 board target
+ * - Added new USB_Host_GetDeviceStringDescriptor() convenience function
+ * - Added new LEDNotification project to the library, to give a visual LED notification on new events from the host
+ * - Added new NO_DEVICE_REMOTE_WAKEUP and NO_DEVICE_SELF_POWER compile time options
+ *
+ * <b>Changed:</b>
+ * - Removed code in the Keyboard demos to send zeroed reports between two reports with differing numbers of key codes
+ * as this relied on non-standard OS driver behaviour to repeat key groups
+ * - The SCSI_Request_Sense_Response_t and SCSI_Inquiry_Response_t type defines are now part of the Mass Storage Class
+ * driver common defines, rather than being defined in the Host mode Class driver section only
+ * - The USB_MODE_HOST token is now defined even when host mode is not available
+ * - The CALLBACK_HID_Device_CreateHIDReport() HID Device Class driver callback now has a new ReportType parameter to
+ * indicate the report type to generate
+ * - All Class Drivers now return false or the "DeviceDisconnected" error code of their respective error enums when a function
+ * is called when no host/device is connected where possible
+ * - The HOST_SENDCONTROL_DeviceDisconnect enum value has been renamed to HOST_SENDCONTROL_DeviceDisconnected to be in line
+ * with the rest of the library error codes
+ * - Make MIDI device demos also turn off the on board LEDs if MIDI Note On messages are sent with a velocity of zero,
+ * which some devices use instead of Note Off messages (thanks to Robin Green)
+ * - The CDC demos are now named "VirtualSerial" instead to indicate the demos' function rather than its implemented USB class,
+ * to reduce confusion and to be in line with the rest of the LUFA demos
+ * - The SImage_Host_SendBlockHeader() and SImage_Host_ReceiveBlockHeader() Still Image Host Class driver functions are now public
+ *
+ * <b>Fixed:</b>
+ * - Added missing CDC_Host_CreateBlockingStream() function code to the CDC Host Class driver
+ * - Fixed incorrect values for REPORT_ITEM_TYPE_* enum values causing corrupt data in the HID Host Parser
+ * - Fixed misnamed SI_Host_USBTask() and SI_Host_ConfigurePipes() functions
+ * - Fixed broken USB_GetNextDescriptor() function causing the descriptor to jump ahead double the expected amount
+ * - Fixed Pipe_IsEndpointBound() not masking the given Endpoint Address against PIPE_EPNUM_MASK
+ * - Fixed host state machine not enabling Auto VBUS mode when HOST_DEVICE_SETTLE_DELAY_MS is set to zero
+ * - Fixed misnamed Pipe_SetPipeToken() macro for setting a pipe's direction
+ * - Fixed CDCHost failing on devices with bidirectional endpoints
+ * - Fixed USB driver failing to define the PLL prescaler mask for the ATMEGA8U2 and ATMEGA16U2
+ * - Fixed HID Parser not distributing the Usage Min and Usage Max values across an array of report items
+ * - Fixed Mass Storage Host Class driver and Low Level demo not clearing the error condition if an attached device returns a
+ * STALL to a GET MAX LUN request (thanks to Martin Luxen)
+ * - Fixed TeensyHID bootloader not properly shutting down the USB interface to trigger a disconnection on the host before resetting
+ * - Fixed MassStorageHost Class driver demo not having USB_STREAM_TIMEOUT_MS compile time option set properly to prevent slow
+ * devices from timing out the data pipes
+ * - Fixed the definition of the Endpoint_BytesInEndpoint() macro for the U4 series AVR parts
+ * - Fixed MIDI host Class driver MIDI_Host_SendEventPacket() routine not properly checking for Pipe ready before writing
+ * - Fixed use of deprecated struct initializers, removed library unused parameter warnings when compiled with -Wextra enabled
+ * - Fixed Still Image Host Class driver truncating the PIMA response code (thanks to Daniel Seibert)
+ * - Fixed USB_CurrentMode not being reset to USB_MODE_NONE when the USB interface is shut down and both Host and Device modes can be
+ * used (thanks to Daniel Levy)
+ * - Fixed TeensyHID bootloader not enumerating to the host correctly (thanks to Clint Fisher)
+ * - Fixed AVRISP project timeouts not checking for the correct timeout period (thanks to Carl Ott)
+ * - Fixed STK525 Dataflash driver using incorrect bit-shifting for Dataflash addresses (thanks to Tim Mitchell)
+ *
+ *
+ * \section Sec_ChangeLog091122 Version 091122
+ *
+ * <b>New:</b>
+ * - Added new Dual Role Keyboard/Mouse demo
+ * - Added new HID_HOST_BOOT_PROTOCOL_ONLY compile time token to reduce the size of the HID Host Class driver when
+ * Report protocol is not needed
+ * - Added new MIDI LowLevel and ClassDriver Host demo, add new MIDI Host Class driver
+ * - Added new CDC/Mouse ClassDriver device demo
+ * - Added new Joystick Host ClassDriver and LowLevel demos
+ * - Added new Printer Host mode Class driver
+ * - Added new Printer Host mode ClassDriver demo
+ * - Added optional support for double banked endpoints and pipes in the Device and Host mode Class drivers
+ * - Added new stream creation function to the CDC Class drivers, to easily make standard I/O streams from CDC Class driver instances
+ *
+ * <b>Changed:</b>
+ * - Removed mostly useless "TestApp" demo, as it was mainly useful only for checking for syntax errors in the library
+ * - MIDI device demos now receive MIDI events from the host and display note ON messages via the board LEDs
+ * - Cleanups to the Device mode Mass Storage demo application SCSI routines
+ * - Changed Audio Class driver sample read/write functions to be inline, to reduce the number of cycles needed to transfer
+ * samples to and from the device (allowing more time for sample processing and output)
+ * - Audio class Device mode demos now work at both 16MHz and 8MHz, rather than just at 8MHz
+ * - The previous USBtoSerial demo has been moved into the projects directory, as it was just a modified CDC demo
+ * - The Endpoint/Pipe functions now use the const qualifier on the input buffer
+ * - Changed the CALLBACK_HIDParser_FilterHIDReportItem() callback to pass a HID_ReportItem_t rather than just the current
+ * item's attributes, to expose more information on the item (including it's type, collection path, etc.)
+ * - Changed MouseHostWithParser demos to check that the report items have a Mouse usage collection as a parent at some point,
+ * to prevent Joysticks from enumerating with the demo
+ * - Corrected the name of the misnamed USB_GetDeviceConfigDescriptor() function to USB_Host_GetDeviceConfigDescriptor().
+ * - Keyboard LowLevel/ClassDriver demos now support multiple simultaneous key presses (up to 6) per report
+ *
+ * <b>Fixed:</b>
+ * - Fixed PrinterHost demo returning invalid Device ID data when the attached device does not have a
+ * device ID (thanks to Andrei Krainev)
+ * - Changed LUFA_VERSION_INTEGER define to use BCD values, to make comparisons easier
+ * - Fixed issue in the HID Host class driver's HID_Host_SendReportByID() routine using the incorrect mode (control/pipe)
+ * to send report to the attached device
+ * - Fixed ClassDriver AudioOutput device demo not selecting an audio output mode
+ * - Fixed incorrect SampleFrequencyType value in the AudioInput and AudioOutput ClassDriver demos' descriptors
+ * - Fixed incorrect event name rule in demo/project/bootloader makefiles
+ * - Fixed HID device class driver not reselecting the correct endpoint once the user callback routines have been called
+ * - Corrected HID descriptor in the Joystick Device demos - buttons should be placed outside the pointer collection
+ * - Fixed HID report parser collection paths invalid due to misplaced semicolon in the free path item search loop
+ * - Fixed HID host Class driver report send/receive report broken when issued through the control pipe
+ * - Fixed HOST_STATE_AS_GPIOR compile time option being ignored when in host mode (thanks to David Lyons)
+ * - Fixed LowLevel Keyboard demo not saving the issues report only after it has been sent to the host
+ * - Fixed Endpoint_Write_Control_Stream_* functions not sending a terminating IN when given data Length is zero
+ *
+ *
+ * \section Sec_ChangeLog090924 Version 090924
+ *
+ * <b>New:</b>
+ * - Added new host mode class drivers and matching demos to the library for rapid application development
+ * - Added flag to the HID report parser to indicate if a device has multiple reports
+ * - Added new EVENT_USB_Device_StartOfFrame() event, controlled by the new USB_Device_EnableSOFEvents() and
+ * USB_Device_DisableSOFEvents() macros to give bus-synchronized millisecond interrupts when in USB device mode
+ * - Added new Endpoint_SetEndpointDirection() macro for bidirectional endpoints
+ * - Added new AVRISP project, a LUFA powered clone of the Atmel AVRISP-MKII programmer
+ * - Added ShutDown() functions for all hardware peripheral drivers, so that peripherals can be turned off after use
+ * - Added new CDC_Device_Flush() command to the device mode CDC Class driver to flush Device->Host data
+ * - Added extra masks to the SPI driver, changed SPI_Init() so that the clock polarity and sample modes can be set
+ * - Added new callback to the HID report parser, so that the user application can filter only the items it is interested
+ * in to be stored into the HIDReportInfo structure to save RAM
+ * - Added support for the officially recommended external peripheral layout for the BUMBLEB board (thanks to Dave Fletcher)
+ * - Added new Pipe_IsFrozen() macro to determine if the currently selected pipe is frozen
+ * - Added new USB_GetHIDReportSize() function to the HID report parser to retrieve the size of a given report by its ID
+ * - Added new combined Mass Storage and Keyboard demo (thanks to Matthias Hullin)
+ *
+ * <b>Changed:</b>
+ * - SetIdle requests to the HID device driver with a 0 idle period (send changes only) now only affect the requested
+ * HID interface within the device, not all HID interfaces
+ * - Added explicit attribute masks to the device mode demos' descriptors
+ * - Added return values to the CDC and MIDI class driver transmit functions
+ * - Optimized Endpoint_Read_Word_* and Pipe_Read_Word_* macros to reduce compiled size
+ * - Added non-null function parameter pointer restrictions to USB Class drivers to improve user code reliability
+ * - Added new "Common" section to the class drivers, to hold all mode-independent definitions for clarity
+ * - Moved SCSI command/sense constants into the Mass Storage Class driver, instead of the user-code
+ * - Altered the SCSI commands in the LowLevel Mass Storage Host to save on FLASH space by reducing function calls
+ * - Changed the parameters and behaviour of the USB_GetDeviceConfigDescriptor() function so that it now performs size checks
+ * and data validations internally, to simplify user code
+ * - Changed HIDParser to only zero out important values in the Parsed HID Report Item Information structure to save cycles
+ * - The HID report parser now always processed FEATURE items - HID_ENABLE_FEATURE_PROCESSING token now has no effect
+ * - The HID report parser now always ignores constant-data items, HID_INCLUDE_CONSTANT_DATA_ITEMS token now has no effect
+ * - The Benito Programmer project now has its own unique VID/PID pair allocated from the Atmel donated LUFA VID/PID pool
+ * - Add in new invalid event hook check targets to project makefiles to produce compilation errors when invalid event names
+ * are used in a project
+ * - The HID Report Parser now gives information on the total length of each report within a HID interface
+ * - The USE_NONSTANDARD_DESCRIPTOR_NAMES compile time token has been removed - there are now separate USB_Descriptor_* and
+ * USB_StdDescriptor_* structures for both the LUFA and standardized element naming conventions so both may be used
+ *
+ * <b>Fixed:</b>
+ * - Fixed possible lockup in the CDC device class driver, when the host sends data that is a multiple of the
+ * endpoint's bank
+ * - Fixed swapped parameters in the HID state memory copy call while processing a HID PUSH item in the HID report parser
+ * - Fixed memory corruption HID report parser when too many COLLECTION or PUSH items were processed
+ * - Fixed HID report parser not resetting the FEATURE item count when a REPORT ID item is encountered
+ * - Fixed USBtoSerial demos not reading in UDR1 when the USART receives data but the USB interface is not enumerated,
+ * causing continuous USART receive interrupts
+ * - Fixed misspelled event name in the Class driver USBtoSerial demo, preventing correct operation
+ * - Fixed invalid data being returned when a GetStatus request is issued in Device mode with an unhandled data recipient
+ * - Added hardware USART receive interrupt and software buffering to the Benito project to ensure received data is not
+ * missed or corrupted
+ * - Fixed Device mode HID Class driver always sending IN packets, even when nothing to report
+ * - Fixed Device mode HID Class driver not explicitly initializing the ReportSize parameter to zero before calling callback
+ * routine, so that ignored callbacks don't cause incorrect data to be sent
+ * - Fixed StillImageHost not correctly freezing and unfreezing data pipes while waiting for a response block header
+ * - Fixed error in the PrinterHost demo preventing the full page data from being sent to the attached device (thanks to John Andrews)
+ * - Fixed CDC based demos and projects' INF driver files under 64 bit versions of Windows (thanks to Ronny Hanson, Thomas Bleeker)
+ * - Re-add in missing flip, flip-ee, dfu and dfu-ee targets to project makefiles (thanks to Opendous Inc.)
+ * - Fix allowable F_CPU values comment in project makefiles to more accurately reflect the allowable values on the USB AVRs
+ * - Fixed DFU and CDC class bootloaders on the series 2 USB AVRs, corrected invalid signatures, added support for the new
+ * ATMEGAxx2 series 2 variant AVRs to the DFU bootloader
+ * - Fixed Low Level USBtoSerial demo not storing received characters (thanks to Michael Cooper)
+ * - Fixed MIDI Device Class driver not sending/receiving MIDI packets of the correct size (thanks to Thomas Bleeker)
+ *
+ *
+ * \section Sec_ChangeLog090810 Version 090810
+ *
+ * <b>New:</b>
+ * - Added new device class drivers and matching demos to the library for rapid application development
+ * - Added new PrinterHost demo (thanks to John Andrews)
+ * - Added USB Missile Launcher project, submitted by Dave Fletcher
+ * - Added new Benito Arduino Programmer project
+ * - Added incomplete device and host mode demos for later enhancement
+ * - Updated MassStorage device block write routines to use ping-pong Dataflash buffering to increase throughput by around 30%
+ * - Error status LEDs shown when device endpoint configuration fails to complete in all demos and projects
+ * - Added new USB_Host_SetDeviceConfiguration() convenience function for easy configuration selection of devices while in USB
+ * host mode
+ * - Added new USB_Host_ClearPipeStall() convenience function to clear a stall condition on an attached device's endpoint
+ * - Added new USB_Host_GetDeviceDescriptor() convenience function to retrieve the attached device's Device descriptor
+ * - Added new Endpoint_ClearStatusStage() convenience function to assist with the status stages of control transfers
+ * - Added new USE_INTERNAL_SERIAL define for using the unique serial numbers in some AVR models as the USB device's serial number,
+ * added NO_INTERNAL_SERIAL compile time option to turn off new serial number reading code
+ * - Added new DATAFLASH_CHIP_MASK() macro to the Dataflash driver, which returns the Dataflash select mask for the given chip index
+ * - Added new HOST_STATE_WaitForDeviceRemoval host state machine state for non-blocking disabling of device communications until the
+ * device has been removed (for use when an error occurs or communications with the device have completed)
+ * - Added new FAST_STREAM_TRANSFERS compile time option for faster stream transfers via multiple bytes copied per stream loop
+ * - Added stdio stream demo code to the CDC device demos, to show how to create standard streams out of the virtual serial ports
+ * - Added new EEPROM and FLASH buffer versions of the Endpoint and Pipe stream functions
+ * - Added new USE_FLASH_DESCRIPTORS and FIXED_NUM_CONFIGURATIONS compile time options
+ * - Added support for the new ATMEGA32U2, ATMEGA16U2 and ATMEGA8U2 AVR models
+ * - Added new USB_DeviceState variable to keep track of the current Device mode USB state
+ * - Added new LEDs_ToggleLEDs() function to the LEDs driver
+ * - Added new Pipe_BoundEndpointNumber() and Pipe_IsEndpointBound() functions
+ * - Added new DEVICE_STATE_AS_GPIOR and HOST_STATE_AS_GPIOR compile time options
+ * - Added 404 Not Found errors to the webserver in the RNDIS demos to indicate invalid URLs
+ *
+ * <b>Changed:</b>
+ * - Deprecated pseudo-scheduler and removed dynamic memory allocator from the library (first no longer needed and second unused)
+ * - The device-mode CALLBACK_USB_GetDescriptor() function now has an extra parameter so that the memory space in which the requested
+ * descriptor is located can be specified. This means that descriptors can now be located in multiple memory spaces within a device.
+ * - Removed vague USB_IsConnected global - test USB_DeviceState or USB_HostState explicitly to gain previous functionality
+ * - Removed USB_IsSuspended global - test USB_DeviceState against DEVICE_STATE_Suspended instead
+ * - Extended USB_GetDeviceConfigDescriptor() routine to require the configuration number within the device to fetch
+ * - Dataflash_WaitWhileBusy() now always ensures that the dataflash is ready for the next command immediately after returning,
+ * no need to call Dataflash_ToggleSelectedChipCS() afterwards
+ * - Low level API MIDI device demo no longer blocks if a note change event is sent while the endpoint is not ready
+ * - Pipe_GetErrorFlags() now returns additional error flags for overflow and underflow errors
+ * - Pipe stream functions now automatically set the correct pipe token, so that bidirectional pipes can be used
+ * - Pipe_ConfigurePipe() now automatically defaults IN pipes to accepting infinite IN requests, this can still be changed by calling
+ * the existing Pipe_SetFiniteINRequests() function
+ * - Changed F_USB entries in project makefiles to alias to F_CPU by default, as this is the most common case
+ * - Host mode demos now use sane terminal escape codes, so that text is always readable and events/program output is visually distinguished
+ * from one another using foreground colours
+ * - Internal per-device preprocessing conditions changed to per-device series rather than per-controller group for finer-grain
+ * internal control
+ * - Interrupts are no longer disabled during the processing of Control Requests on the default endpoint while in device mode
+ * - AudioOutput demos now always output to board LEDs, regardless of output mode (removed AUDIO_OUT_LEDS project option)
+ * - Removed SINGLE_DEVICE_CONFIGURATION compile time option in favor of the new FIXED_NUM_CONFIGURATIONS option so that the exact number
+ * of device configurations can be defined statically
+ * - Removed VBUS events, as they are already exposed to the user application via the regular device connection and disconnection events
+ * - Renamed and altered existing events to properly separate out Host and Device mode events
+ * - All demos switched over from GNU99 standards mode to C99 standards mode, to reduce the dependencies on GCC-only language extensions
+ *
+ * <b>Fixed:</b>
+ * - Changed bootloaders to use FLASHEND rather than the existence of RAMPZ to determine if far FLASH pointers are needed to fix
+ * bootloaders on some of the USB AVR devices where avr-libc erroneously defines RAMPZ
+ * - Fixes to MassStorageHost for better device compatibility (increase command timeout, change MassStore_WaitForDataReceived()
+ * to only unfreeze and check one data pipe at a time) to prevent incorrect device enumerations and freezes while transferring data
+ * - Make Pipe_ConfigurePipe() mask the given endpoint number against PIPE_EPNUM_MASK to ensure the endpoint IN direction bit is
+ * cleared to prevent endpoint type corruption
+ * - Fixed issue opening CDC-ACM ports on hosts when the CDC device tries to send data before the host has set the line encoding
+ * - Fixed USB_OPT_MANUAL_PLL option being ignored during device disconnects on some models (thanks to Brian Dickman)
+ * - Fixed documentation mentioning Pipe_GetCurrentToken() function when correct function name is Pipe_GetPipeToken()
+ * - Fixed ADC driver for the ATMEGA32U4 and ATMEGA16U4 (thanks to Opendous Inc.)
+ * - Fixed CDCHost demo unfreezing the pipes at the point of configuration, rather than use
+ * - Fixed MassStorage demo not clearing the reset flag when a Mass Storage Reset is issued while not processing a command
+ * - Fixed USB_Host_SendControlRequest() not re-suspending the USB bus when initial device ready-wait fails
+ * - Fixed USB Pad regulator not being disabled on some AVR models when the USB_OPT_REG_DISABLED option is used
+ * - Fixed Host mode to Device mode UID change not causing a USB Disconnect event when a device was connected
+ * - Fixed Mouse/Keyboard demos not performing the correct arithmetic on the Idle period at the right times (thanks to Brian Dickman)
+ * - Fixed GenericHID failing HID class tests due to incorrect Logical Minimum and Logical Maximum values (thanks to Soren Greiner)
+ * - Fixed incorrect PIPE_EPNUM_MASK mask causing pipe failures on devices with endpoint addresses of 8 and above (thanks to John Andrews)
+ * - Fixed report data alignment issues in the MouseHostWithParser demo when X and Y movement data size is not a multiple of 8 bits
+ * - Fixed HID Report Descriptor Parser not correctly resetting internal states when a REPORT ID element is encountered
+ * - Fixed incorrect BUTTONS_BUTTON1 for the STK526 target
+ * - Fixed RNDIS demos freezing when more than one connection was attempted simultaneously, causing memory corruption
+ * - Fixed USBtoSerial demo receiving noise from the USART due to pull-up not being enabled
+ *
+ *
+ * \section Sec_ChangeLog090605 Version 090605
+ *
+ * - Fixed bug in RNDISEthernet and DualCDC demos not using the correct USB_ControlRequest structure for control request data
+ * - Fixed documentation showing incorrect USB mode support on the supported AVRs list
+ * - Fixed RNDISEthernet not working under Linux due to Linux requiring an "optional" RNDIS request which was unhandled
+ * - Fixed Mouse and Keyboard device demos not acting in accordance with the HID specification for idle periods (thanks to Brian Dickman)
+ * - Removed support for endpoint/pipe non-control interrupts; these did not act in the way users expected, and had many subtle issues
+ * - Fixed Device Mode not handling Set Feature and Clear Feature Chapter 9 requests that are addressed to the device (thanks to Brian Dickman)
+ * - Moved control endpoint interrupt handling into the library itself, enable via the new INTERRUPT_CONTROL_ENDPOINT token
+ * - Fixed CDCHost not clearing configured pipes and resetting configured pipes mask when a partially enumerated invalid CDC
+ * interface is skipped
+ * - Clarified the size of library tokens which accept integer values in the Compile Time Tokens page, values now use the smallest datatype
+ * inside the library that is able to hold their defined value to save space
+ * - Removed DESCRIPTOR_ADDRESS() macro as it was largely superfluous and only served to obfuscate code
+ * - Rewritten event system to remove all macros, to make user code clearer
+ * - Fixed incorrect ENDPOINT_EPNUM_MASK mask preventing endpoints above EP3 from being selected (thanks to Jonathan Oakley)
+ * - Removed STREAM_CALLBACK() macro - callbacks now use regular function definitions to clarify user code
+ * - Removed DESCRIPTOR_COMPARATOR() macro - comparators should now use regular function definitions to clarify user code
+ * - USB_IsConnected is now cleared before the USB_Disconnect() event is fired in response to VBUS being removed
+ * - Fixed incorrect PID value being used in the USBtoSerial project (thanks to Phill)
+ * - Deleted StdDescriptors.c, renamed USB_GetDescriptor() to CALLBACK_USB_GetDescriptor, moved ConfigDescriptor.c/.h from the
+ * LUFA/Drivers/USB/Class/ directory to LUFA/Drivers/USB/HighLevel/ in preparation for the new USB class APIs
+ * - Moved out each demos' functionality library files (e.g. Ring Buffer library) to /Lib directories for a better directory structure
+ * - Removed Tx interrupt from the USBtoSerial demo; now sends characters via polling to ensure more time for the Rx interrupt
+ * - Fixed possible enumeration errors from spin-loops which may fail to exit if the USB connection is severed before the exit condition
+ * becomes true
+ *
+ *
+ * \section Sec_ChangeLog090510 Version 090510
+ *
+ * - Added new GenericHIDHost demo
+ * - Corrections to the KeyboardHost and MouseHost demos' pipe handling to freeze and unfreeze the data pipes at the point of use
+ * - KeyboardHost, MouseHost and GenericHIDHost demos now save and restore the currently selected pipe inside the pipe ISR
+ * - Changed GenericHID device demo to use the LUFA scheduler, added INTERRUPT_DATA_ENDPOINT and INTERRUPT_CONTROL_ENDPOINT compile
+ * time options
+ * - All comments in the library, bootloaders, demos and projects have now been spell-checked and spelling mistakes/typos corrected
+ * - Added new PIMA_DATA_SIZE() define to the Still Image Host demo
+ * - Add call to MassStore_WaitForDataReceived() in MassStore_GetReturnedStatus() to ensure that the CSW has been received in the
+ * extended MSC timeout period before continuing, to prevent long processing delays from causing the MassStore_GetReturnedStatus()
+ * to early-abort (thanks to Dmitry Maksimov)
+ * - Move StdRequestType.h, StreamCallbacks.h, USBMode.h from the LowLevel USB driver directory to the HighLevel USB driver directory,
+ * where they are more suited
+ * - Removed all binary constants and replaced with decimal or hexadecimal constants so that unpatched GCC compilers can still build the
+ * code without having to be itself patched and recompiled first
+ * - Added preprocessor checks and documentation to the bootloaders giving information about missing SIGNATURE_x defines due to
+ * outdated avr-libc versions.
+ * - Added support to the CDCHost demo for devices with multiple CDC interfaces which are not the correct ACM type preceding the desired
+ * ACM CDC interface
+ * - Fixed GenericHID demo not starting USB and HID management tasks when not using interrupt driven modes (thanks to Carl Kjeldsen)
+ * - Fixed RNDISEthenet demo checking the incorrect message field for packet size constraints (thanks to Jonathan Oakley)
+ * - Fixed WriteNextReport code in the GenericHIDHost demo using incorrect parameter types and not selecting the correct endpoint
+ * - Adjusted sample CTC timer calculations in the AudioOutput and AudioInput demos to match the CTC calculations in the AVR datasheet,
+ * and to fix instances where rounding caused the endpoint to underflow (thanks to Robin Theunis)
+ * - The USB_Host_SendControlRequest() function no longer automatically selects the Control pipe (pipe 0), so that other control type
+ * pipes can be used with the function
+ * - The USB Host management task now saves and restores the currently selected pipe before and after the task completes
+ * - Fixed GenericHIDHost demo report write routine incorrect for control type requests (thanks to Andrei Krainev)
+ * - Removed Endpoint_ClearCurrentBank() and Pipe_ClearCurrentBank() in favor of new Endpoint_ClearIN(), Endpoint_ClearOUT(),
+ * Pipe_ClearIN() and Pipe_ClearOUT() macros (done to allow for the detection of packets of zero length)
+ * - Renamed *_ReadWriteAllowed() macros to *_IsReadWriteAllowed() to remain consistent with the rest of the LUFA API
+ * - Endpoint_IsSetupReceived() macro has been renamed to Endpoint_IsSETUPReceived(), Endpoint_ClearSetupReceived() macro has been
+ * renamed to Endpoint_ClearSETUP(), the Pipe_IsSetupSent() macro has been renamed to Pipe_IsSETUPSent() and the
+ * Pipe_ClearSetupSent() macro is no longer applicable and should be removed - changes made to compliment the new endpoint and pipe
+ * bank management API
+ * - Updated all demos, bootloaders and projects to use the new endpoint and pipe management APIs (thanks to Roman Thiel from Curetis AG)
+ * - Updated library doxygen documentation, added groups, changed documentation macro functions to real functions for clarity
+ * - Removed old endpoint and pipe aliased read/write/discard routines which did not have an explicit endian specifier for clarity
+ * - Removed the ButtLoadTag.h header file, as no one used for its intended purpose anyway
+ * - Renamed the main Drivers/AT90USBXXX directory to Drivers/Peripheral, renamed the Serial_Stream driver to SerialStream
+ * - Fixed CDC and USBtoSerial demos freezing where buffers were full while still transmitting or receiving (thanks to Peter Hand)
+ * - Removed "Host_" section of the function names in ConfigDescriptor.h, as most of the routines can now be used in device mode on the
+ * device descriptor
+ * - Renamed functions in the HID parser to have a "USB_" prefix and the acronym "HID" in the name
+ * - Fixed incorrect HID interface class and subclass values in the Mouse and KeyboardMouse demos (thanks to Brian Dickman)
+ * - Capitalized the "Descriptor_Search" and "Descriptor_Search_Comp" prefixes of the values in the DSearch_Return_ErrorCodes_t and
+ * DSearch_Comp_Return_ErrorCodes_t enums
+ * - Removed "ERROR" from the enum names in the endpoint and pipe stream error code enums
+ * - Renamed the USB_PowerOnErrorCodes_t enum to USB_InitErrorCodes_t, renamed the POWERON_ERROR_NoUSBModeSpecified enum value to
+ * USB_INITERROR_NoUSBModeSpecified
+ * - Renamed USB_PowerOnFail event to USB_InitFailure
+ * - Renamed OTG.h header functions to be more consistent with the rest of the library API
+ * - Changed over all deprecated GCC structure tag initializers to the standardized C99 format (thanks to Mike Alexander)
+ * - USB_HostRequest renamed to USB_ControlRequest, entire control request header is now read into USB_ControlRequest in Device mode
+ * rather than having the library pass only partially read header data to the application
+ * - The USB_UnhandledControlPacket event has had its parameters removed, in favor of accessing the new USB_ControlRequest structure
+ * - The Endpoint control stream functions now correctly send a ZLP to the host when less data than requested is sent
+ * - Fixed USB_RemoteWakeupEnabled flag never being set (the REMOTE WAKEUP Set Feature request was not being handled)
+ * - Renamed the FEATURELESS_CONTROL_ONLY_DEVICE compile-time token to CONTROL_ONLY_DEVICE
+ * - Endpoint configuration is now refined to give better output when all configurations have static inputs - removed the now useless
+ * STATIC_ENDPOINT_CONFIGURATION compile time token
+ * - Fixed SPI driver init function not clearing SPI2X bit when not needed
+ * - Fixed PREVENT ALLOW MEDIUM REMOVAL command issuing in the MassStorageHost demo using incorrect parameters (thanks to Mike Alex)
+ * - Fixed MassStorageHost demo broken due to an incorrect if statement test in MassStore_GetReturnedStatus()
+ * - Fixed reversed signature byte ordering in the CDC bootloader (thanks to Johannes Raschke)
+ * - Changed PIPE_CONTROLPIPE_DEFAULT_SIZE from 8 to 64 to try to prevent problems with faulty devices which do not respect the given
+ * wLength value when reading in the device descriptor
+ * - Fixed missing semicolon in the ATAVRUSBRF01 LED board driver code (thanks to Morten Lund)
+ * - Changed LED board driver code to define dummy LED masks for the first four board LEDs, so that user code can be compiled for boards
+ * with less than four LEDs without code modifications (thanks to Morten Lund)
+ * - Changed HWB board driver to Buttons driver, to allow for the support of future boards with more than one mounted GPIO button
+ * - Serial driver now correctly calculates the baud register value when in double speed mode
+ * - Init function of the Serial driver is now static inline to product smaller code for the common-case of static init values
+ *
+ *
+ * \section Sec_ChangeLog090401 Version 090401
+ *
+ * - Fixed MagStripe project configuration descriptor containing an unused (blank) endpoint descriptor
+ * - Incorporated makefile changes by Denver Gingerich to retain compatibility with stock (non-WinAVR) AVR-GCC installations
+ * - Fixed makefile EEPROM programming targets programming FLASH data in addition to EEPROM data
+ * - LUFA devices now enumerate correctly with LUFA hosts
+ * - Fixed Configuration Descriptor search routine freezing when a comparator returned a failure
+ * - Removed HID report item serial dump in the MouseHostWithParser and KeyboardHostWithParser - useful only for debugging, and
+ * slowed down the enumeration of HID devices too much
+ * - Increased the number of bits per track which can be read in the MagStripe project to 8192 when compiled for the AT90USBXXX6/7
+ * - Fixed KeyboardMouse demo discarding the wIndex value in the REQ_GetReport request
+ * - USBtoSerial demo now discards all Rx data when not connected to a USB host, rather than buffering characters for transmission
+ * next time the device is attached to a host.
+ * - Added new F_USB compile time constant to the library and makefiles, to give the raw input clock (used to feed the PLL before any
+ * clock prescaling is performed) frequency, so that the PLL prescale mask can be determined
+ * - Changed stream wait timeout counter to be 16-bit, so that very long timeout periods can be set for correct communications with
+ * badly designed hosts or devices which greatly exceed the USB specification limits
+ * - Mass Storage Host demo now uses a USB_STREAM_TIMEOUT_MS of two seconds to maintain compatibility with poorly designed devices
+ * - Function attribute ATTR_ALWAYSINLINE renamed to ATTR_ALWAYS_INLINE to match other function attribute macro naming conventions
+ * - Added ATTR_ALWAYS_INLINE attribute to several key inlined library components, to ensure they are inlined in all circumstances
+ * - Removed SetSystemClockPrescaler() macro, the clock_prescale_set() avr-libc macro has been corrected in recent avr-libc versions
+ * - Fixed incorrect/missing control status stage transfers on demos, bootloaders and applications (thanks to Nate Lawson)
+ * - The NO_CLEARSET_FEATURE_REQUEST compile time token has been renamed to FEATURELESS_CONTROL_ONLY_DEVICE, and its function expanded
+ * to also remove parts of the Get Status chapter 9 request to further reduce code usage
+ * - Makefile updated to include output giving the currently selected BOARD parameter value
+ * - Board Dataflash driver now allows for dataflash ICs which use different shifts for setting the current page/byte address (thanks
+ * to Kenneth Clubb)
+ * - Added DataflashManager_WriteBlocks_RAM() and DataflashManager_ReadBlocks_RAM() functions to the MassStorage demo, to allow for easy
+ * interfacing with a FAT library for dataflash file level access
+ * - Corrected CDC class bootloader to fix a few bugs, changed address counter to store x2 addresses for convenience
+ * - Fixed typos in the SPI driver SPI_SPEED_FCPU_DIV_64 and SPI_SPEED_FCPU_DIV_128 masks (thanks to Markus Zocholl)
+ * - Keyboard and Mouse device demos (normal, data interrupt and fully interrupt driven) combined into unified keyboard and mouse demos
+ * - Keyboard and Mouse host demos (normal and data interrupt driven) combined into unified keyboard and mouse demos
+ * - Removed AVRISP_Programmer project due to code quality concerns
+ * - Fixed CDC demo not sending an empty packet after each transfer to prevent the host from buffering incoming data
+ * - Fixed documentation typos and preprocessor checks relating to misspellings of the USE_RAM_DESCRIPTORS token (thanks to Ian Gregg)
+ * - Fixed USBTask.h not conditionally including HostChapter9.h only when USB_CAN_BE_HOST is defined (thanks to Ian Gregg)
+ * - Fixed incorrect ADC driver init register manipulation (thanks to Tobias)
+ * - Added new GenericHID device demo application
+ * - Fixed Still Image Host SImage_SendData() function not clearing the pipe bank after sending data
+ *
+ *
+ * \section Sec_ChangeLog090209 Version 090209
+ *
+ * - PWM timer mode in AudioOut demo changed to Fast PWM for speed
+ * - Updated Magstripe project to work with the latest hardware revision
+ * - Fixed library not responding to the BCERRI flag correctly in host mode, leading to device lockups
+ * - Fixed library handling Get Descriptor requests when not addressed as standard requests to the device or interface (thanks to
+ * Nate Lawson)
+ * - Fixed serious data corruption issue in MassStorage demo dataflash write routine
+ * - Added new NO_CLEARSET_FEATURE_REQUEST compile time token
+ * - USB task now restores previous global interrupt state after execution, rather than forcing global interrupts to be enabled
+ * - Fixed USB_DeviceEnumerationComplete event firing after each configuration change, rather than once after the initial configuration
+ * - Added ENDPOINT_DOUBLEBANK_SUPPORTED() macros to Endpoint.h, altered ENDPOINT_MAX_SIZE() to allow user to specify endpoint
+ * - ENDPOINT_MAX_ENDPOINTS changed to ENDPOINT_TOTAL_ENDPOINTS, PIPE_MAX_PIPES changed to PIPE_TOTAL_PIPES
+ * - Endpoint and Pipe non-control stream functions now ensure endpoint or pipe is ready before reading or writing
+ * - Changed Teensy bootloader to use a watchdog reset when exiting rather than a software jump
+ * - Fixed integer promotion error in MassStorage and MassStorageHost demos, corrupting read/write transfers
+ * - SPI_SendByte is now SPI_TransferByte, added new SPI_SendByte and SPI_ReceiveByte functions for fast one-way transfer
+ * - MassStorage demo changed to use new fast one-way SPI transfers to increase throughput
+ * - MassStorage handling of Mass Storage Reset class request improved
+ * - Altered MassStorage demo dataflash block read code for speed
+ * - Added USB_IsSuspended global flag
+ * - Simplified internal Dual Mode (OTG) USB library code to reduce code size
+ * - Extended stream timeout period to 100ms from 50ms
+ * - Mass Storage Host demo commands now all return an error code from the Pipe_Stream_RW_ErrorCodes_t enum
+ * - Added SubErrorCode parameter to the USB_DeviceEnumerationFailed event
+ * - VBUS drop interrupt now disabled during the manual-to-auto VBUS delivery handoff
+ * - Simplified low level backend so that device/host mode initialization uses the same code paths
+ * - Added workaround for faulty Mass Storage devices which do not implement the required GET_MAX_LUN request
+ * - Removed buggy Telnet application from the RNDIS demo
+ * - Moved Mass Storage class requests in the Mass Storage Host demo to wrapper functions in MassStoreCommands.c
+ * - Fixed incorrect SCSI command size value in the Request Sense command in MassStoreCommands.c
+ * - Added SetProtocol request to HID class non-parser Mouse and Keyboard demos to force devices to use the correct Boot Protocol
+ * - Added new "dfu" and "flip" programming targets to project makefiles
+ * - HID_PARSE_Sucessful enum member typo corrected to HID_PARSE_Successful
+ * - Changed COLLECTION item structures in the HID descriptor parser to include the collection's Usage Page value
+ * - Serial driver now sets Tx line as output, enables pull-up on Rx line
+ * - Fixed smaller USB AVRs raising multiple connection and disconnection events when NO_LIMITED_CONTROLLER_CONNECT is disabled
+ * - Added HOST_DEVICE_SETTLE_DELAY_MS to give the host delay after a device is connected before it is enumerated
+ * - Fixed KeyboardHostWithParser demo linking against the wrong global variables
+ * - Completed doxygen documentation of remaining library bootloaders, demos and projects
+ * - Fixed incorrect bootloader start address in the TeensyHID bootloader
+ * - Added HWB button whole-disk ASCII dump functionality to MassStoreHost demo
+ * - Replaced printf_P(PSTR("%c"), {Variable}) calls with putchar(<Variable>) for speed and size savings
+ * - Serial driver now accepts baud rates over 16-bits in size, added double speed flag option
+ * - Fixed incorrect callback abort return value in Pipe.c
+ * - Added new flip-ee and dfu-ee makefile targets (courtesy of Opendous Inc.)
+ * - Removed reboot-on-disconnect code from the TeensyHID bootloader, caused problems on some systems
+ * - Fixed AudioOutput and AudioInput demos looping on the endpoint data, rather than processing a sample at a time and returning
+ * each time the task runs to allow for other tasks to execute
+ * - Added support for the Atmel ATAVRUSBRF01 board
+ * - Added AVRISP Programmer Project, courtesy of Opendous Inc.
+ * - Fixed CDC Host demo not searching through both CDC interfaces for endpoints
+ * - Fixed incorrect Product String descriptor length in the DFU class bootloader
+ *
+ *
+ * \section Sec_ChangeLog081224 Version 081224
+ *
+ * - MyUSB name changed to LUFA, the Lightweight USB Framework for AVRs
+ * - Fixed Mass Storage Host demo's MassStore_SendCommand() delay in the incorrect place
+ * - Fixed USBtoSerial demo not calling ReconfigureUSART() after a change in the line encoding
+ * - Fixed infinite loop in host mode Host-to-Device control transfers with data stages
+ * - HID report parser now supports devices with multiple reports in one interface via Report IDs
+ * - Fixed RZUSBSTICK board LED driver header incorrect macro definition order causing compile errors
+ * - Calling USB_Init() when the USB interface is already configured now forces a complete interface reset
+ * and re-enumeration - fixes MyUSB DFU bootloader not switching to app code correctly when soft reset used
+ * - Fixed "No newline at end of file" warning when stream callbacks are enabled
+ * - DFU bootloader now uses fixed signature bytes per device, rather than reading them out dynamically for size
+ * - Added new FIXED_CONTROL_ENDPOINT_SIZE and USE_SINGLE_DEVICE_CONFIGURATION switches to statically define certain values to
+ * reduce compiled binary size
+ * - Added new NO_LIMITED_CONTROLLER_CONNECT switch to prevent the library from trying to determine bus connection
+ * state from the suspension and wake up events on the smaller USB AVRs
+ * - Added summary of all library compile time tokens to the documentation
+ * - Added overview of the LUFA scheduler to the documentation
+ * - Removed MANUAL_PLL_CONTROL compile time token, replaced with a mask for the USB_Init() Options parameter
+ * - CDC bootloader now uses the correct non-far or far versions of the pgm_* functions depending on if RAMPZ is defined
+ * - Doxygen documentation now contains documentation on all the projects, bootloaders and most demos included with the library
+ * - CDC bootloader now runs user application when USB disconnected rather than waiting for a hard reset
+ * - MouseHostWithParser and KeyboardHostWithParser now support multiple-report devices
+ * - RNDIS demo can now close connections correctly using the new TCP_APP_CLOSECONNECTION() macro - used in Webserver
+ * - Fixed the DFU bootloader, no longer freezes up when certain files are programmed into an AVR, made reading/writing faster
+ * - Fixed mouse/joystick up/down movements reversed - HID mouse X/Y coordinates use a left-handed coordinate system, not a normal
+ * right-handed system
+ * - Added stub code to the CDC and USBtoSerial demos showing how to read and set the RS-232 handshake lines - not currently used in
+ * the demos, but the example code and supporting defines are now in place
+ * - Interrupts are now disabled when processing a control request in device mode, to avoid exceeding the strict control request
+ * timing requirements.
+ * - All demos now use a central StatusUpdate() function rather than direct calls to the board LED functions, so that the demos can
+ * easily be altered to show different LED combinations (or do something else entirely) as the demo's status changes
+ * - Removed LED commands from the CDC bootloader, unused by most AVR910 programming software
+ * - Fixed RNDIS demo ICMP ping requests echoing back incorrect data
+ * - Added DHCP server code to RNDIS demo, allowing for hands-free auto configuration on any PC
+ * - Fixed DFU bootloader PID value for the ATMEGA16U4 AVR
+ * - Endpoint and Pipe configuration functions now return an error code indicating success or failure
+ * - USB Reset in device mode now resets and disables all device endpoints
+ * - Added intermediate states to the host mode state machine, reducing the USB task blocking time to no more than 1ms explicitly per
+ * invocation when in host mode
+ * - Added support for the ATMEGA32U6 microcontroller
+ * - Added STATIC_ENDPOINT_CONFIGURATION compile time option, enabled in the bootloaders to minimize space usage
+ * - Removed redundant code from the USB device GetStatus() chapter 9 processing routine
+ * - Added new TeensyHID bootloader, compatible with the Teensy HID protocol (http://www.pjrc.com/teensy/)
+ * - Versions are now numbered by release dates, rather than arbitrary major/minor revision numbers
+ * - USB_RemoteWakeupEnabled is now correctly set and cleared by SetFeature and ClearFeature requests from the host
+ * - Changed prototype of GetDescriptor, so that it now returns the descriptor size (or zero if the descriptor doesn't exist)
+ * rather than passing the size back to the caller through a parameter and returning a boolean
+ *
+ *
+ * \section Sec_ChangeLog153 Version 1.5.3 - Released 2nd October, 2008
+ *
+ * - Fixed CDC bootloader using pgmspace macros for some descriptors inappropriately
+ * - Updated all Mouse and Keyboard device demos to include boot protocol support (now works in BIOS)
+ * - Renamed bootloader directories to remove spaces, which were causing build problems on several OSes
+ * - Removed serial number strings from all but the MassStore demo where it is required - users were not
+ * modifying the code to either omit the descriptor or use a unique serial per device causing problems
+ * when multiple units of the same device were plugged in at the same time
+ * - AudioOutput and AudioInput demos now correctly silence endpoints when not enabled by the host
+ * - Added KeyboardMouse demo (Keyboard and Mouse functionality combined into a single demo)
+ * - Added DriverStubs directory to house board level driver templates, to make MyUSB compatible custom board
+ * driver creation easier
+ * - Extended MassStorage demo to support multiple LUNs, 2 by default
+ * - Fixed incorrect device address mask, preventing the device from enumerating with addresses larger than 63
+ * - Fixed incorrect data direction mask in the GetStatus standard request, preventing it from being handled
+ * - Fixed incorrect GetStatus standard request for endpoints, now returns the endpoint STALL status correctly
+ * - Added in new USB_RemoteWakeupEnabled and USB_CurrentlySelfPowered flags rather than using fixed values
+ * - Added DualCDC demo to demonstrate the use of Interface Association Descriptors
+ * - Added pipe NAK detection and clearing API
+ * - Added pipe status change (NAK, STALL, etc.) interrupt API
+ * - Fixed MassStorageHost demo so that it no longer freezes randomly when issuing several commands in a row
+ * - Host demos configuration descriptor routines now return a unique error code when the returned data does
+ * not have a valid configuration descriptor header
+ * - Added Endpoint_WaitUntilReady() and Pipe_WaitUntilReady() functions
+ * - Stream functions now have software timeouts, timeout period can be set by the USB_STREAM_TIMEOUT_MS token
+ * - All demos now pass the USB.org automated Chapter 9 device compliance tests
+ * - All HID demos now pass the USB.org automated HID compliance tests
+ * - Polling interval of the interrupt endpoint in the CDC based demos changed to 0xFF to fix problems on Linux systems
+ * - Changed stream functions to accept a new callback function, with NO_STREAM_CALLBACKS used to disable all callbacks
+ * - Mass Storage demo dataflash management routines changed to use the endpoint stream functions
+ * - Added AVRStudio project files for each demo in addition to the existing Programmer's Notepad master project file
+ * - Re-added call to ReconfigureUSART() in USBtoSerial SetLineCoding request, so that baud rate changes
+ * are reflected in the hardware (change was previously lost)
+ *
+ *
+ * \section Sec_ChangeLog152 Version 1.5.2 - Released 31st July, 2008
+ *
+ * - Fixed SwapEndian_32() function in Common.h so that it now works correctly (wrong parameter types)
+ * - Updated RNDIS demo - notification endpoint is no longer blocking so that it works with faulty Linux RNDIS
+ * implementations (where the notification endpoint is ignored in favor of polling the control endpoint)
+ * - Fixed incorrect Vendor Description string return size in RNDIS demo for the OID_GEN_VENDOR_DESCRIPTION OID token
+ * - Added very basic TCP/IP stack and HTTP/TELNET servers to RNDIS demo
+ * - Fixed DFU bootloader exit causing programming software to complain about failed writes
+ * - Fixed DFU bootloader EEPROM programming mode wiping first flash page
+ * - Fixed Clear/Set Feature device standard request processing code (fixing MassStorage demo in the process)
+ * - Added support for the ATMEGA16U4 AVR microcontroller
+ * - Library license changed from LGPLv3 to MIT license
+ *
+ *
+ * \section Sec_ChangeLog151 Version 1.5.1 - Released 7th July, 2008
+ *
+ * - Changed host demos to enable the host function task on the firing of the USB_DeviceEnumerationComplete event
+ * rather than the USB_DeviceAttached event
+ * - HID Usage Stack now forcefully cleared after an IN/OUT/FEATURE item has been completely processed to remove
+ * any referenced but not created usages
+ * - Changed USB_INT_DisableAllInterrupts() and USB_INT_ClearAllInterrupts(), USB_Host_GetNextDescriptorOfType(),
+ * USB_Host_GetNextDescriptorOfTypeBefore(), USB_Host_GetNextDescriptorOfTypeAfter() to normal functions (from inline)
+ * - Fixed USBtoSerial demo not sending data, only receiving
+ * - Fixed main makefile to make all by default, fixed MagStripe directory case to prevent case-sensitive path problems
+ * - ConfigDescriptor functions made normal, instead of static inline
+ * - Pipe/Endpoint *_Ignore_* functions changed to *_Discard_*, old names still present as aliases
+ * - Fixed ENDPOINT_MAX_SIZE define to be correct on limited USB controller AVRs
+ * - Changed endpoint and pipe size translation routines to use previous IF/ELSE IF cascade code, new algorithmic
+ * approach was buggy and caused problems
+ * - Bootloaders now compile with -fno-inline-small-functions option to reduce code size
+ * - Audio demos now use correct endpoint sizes for full and limited controller USB AVRs, double banking in all cases
+ * to be in line with the specification (isochronous endpoints MUST be double banked)
+ * - Added Interface Association descriptor to StdDescriptors.h, based on the relevant USB2.0 ECN
+ * - Fixed MIDI demo, corrected Audio Streaming descriptor to follow the MIDI-specific AS structure
+ * - Fixed HID class demo descriptors so that the HID interface's protocol is 0x00 (required for non-boot protocol HID
+ * devices) to prevent problems on hosts expecting the boot protocol functions to be supported
+ * - Added read/write control stream functions to Endpoint.h
+ * - Fixed AudioOut demo not setting port pins to inputs on USB disconnect properly
+ * - Added RNDISEthernet demo application
+ *
+ *
+ * \section Sec_ChangeLog150 Version 1.5.0 - Released 10 June, 2008
+ *
+ * - Fixed MIDI demo, now correctly waits for the endpoint to be ready between multiple note messages
+ * - Added CDC Host demo application
+ * - Added KeyboardFullInt demo application
+ * - Endpoint and Pipe creation routines now mask endpoint/pipe size with the size mask, to remove transaction
+ * size bits not required for the routines (improves compatibility with devices)
+ * - Fixed AudioInput demo - now correctly sends sampled audio to the host PC
+ * - Fixed AudioOutput demo once more -- apparently Windows requires endpoint packets to be >=192 bytes
+ * - Shrunk round-robbin scheduler code slightly via the use of struct pointers rather than array indexes
+ * - Fixed off-by-one error when determining if the Usage Stack is full inside the HID Report parser
+ * - Renamed Magstripe.h to MagstripeHW.h and moved driver out of the library and into the MagStripe demo folder
+ * - Added preprocessor checks to enable C linkage on the library components when used with a C++ compiler
+ * - Added Still Image Host demo application
+ * - The USB device task now restores the previously selected endpoint, allowing control requests to be transparently
+ * handled via interrupts while other endpoints are serviced through polling
+ * - Fixed device signature being sent in reverse order in the CDC bootloader
+ * - Host demos now have a separate ConfigDescriptor.c/.h file for configuration descriptor processing
+ * - HostWithParser demos now have a separate HIDReport.c/.h file for HID report processing and dumping
+ * - Removed non-mandatory commands from MassStorage demo to save space, fixed SENSE ResponseCode value
+ * - CDC demos now send empty packets after sending a full one to prevent buffering issues on the host
+ * - Updated demo descriptors to use VID/PID values donated by Atmel
+ * - Added DoxyGen documentation to the source files
+ * - Fixed Serial_IsCharReceived() definition, was previously reversed
+ * - Removed separate USB_Descriptor_Language_t descriptor, USB_Descriptor_String_t is used instead
+ * - Removed unused Device Qualifier descriptor structure
+ * - Renamed the USB_CreateEndpoints event to the more appropriate USB_ConfigurationChanged
+ * - Fixed MassStorageHost demo reading in the block data in reverse
+ * - Removed outdated typedefs in StdRequestType.h, superseded by the macro masks
+ * - Corrected OTG.h is now included when the AVR supports both Host and Device modes, for creating OTG products
+ * - USB_DeviceEnumerationComplete event is now also fired when in device mode and the host has finished its enumeration
+ * - Interrupt driven demos now properly restore previously selected endpoint when ISR is complete
+ * - The value of USB_HOST_TIMEOUT_MS can now be overridden in the user project makefile to a custom fixed timeout value
+ * - Renamed USB_Host_SOFGeneration_* macros to more friendly USB_Host_SuspendBus(), USB_Host_ResumeBus()
+ * and USB_Host_IsBusSuspended()
+ * - Renamed *_*_Is* macros to *_Is* to make all flag checking macros consistent, Pipe_SetInterruptFreq() is now
+ * Pipe_SetInterruptPeriod() to use the correct terminology
+ * - UnicodeString member of USB_Descriptor_String_t struct changed to an ordinary int array type, so that the GCC
+ * Unicode strings (prefixed with an L before the opening quotation mark) can be used instead of explicit arrays
+ * of ASCII characters
+ * - Fixed Endpoint/Pipes being configured incorrectly if the maximum endpoint/pipe size for the selected USB AVR
+ * model was given as the bank size
+ * - HID device demos now use a true raw array for the HID report descriptor rather than a struct wrapped array
+ * - Added VERSION_BCD() macro, fixed reported HID and USB version numbers in demo descriptors
+ * - Cleaned up GetDescriptor device chapter 9 handler function
+ * - Added GET_REPORT class specific request to HID demos to make them complaint to the HID class
+ * - Cleaned up setting of USB_IsInitialized and USB_IsConnected values to only when needed
+ * - Removed Atomic.c and ISRMacro.h; the library was already only compatible with recent avr-lib-c for other reasons
+ * - All demos and library functions now use USB standardized names for the USB data (bRequest, wLength, etc.)
+ * - Added USE_NONSTANDARD_DESCRIPTOR_NAMES token to switch back to the non-standard descriptor element names
+ *
+ *
+ * \section Sec_ChangeLog141 Version 1.4.1 - Released 19 May, 2008
+ *
+ * - Enhanced KeyboardWithParser demo, now prints out pressed alphanumeric characters like the standard demo
+ * - Fixed MassStorage demo, read/writes using non mode-10 commands now work correctly
+ * - Corrected version number in Version.h
+ *
+ *
+ * \section Sec_ChangeLog140 Version 1.4.0 - Released 5 May, 2008
+ *
+ * - Added HID Report Parser API to the library
+ * - Added Mouse and Keyboard host demo applications, using the new HID report parser engine
+ * - Added MouseFullInt demo, which demonstrates a fully interrupt (including control requests) mouse device
+ * - Fixed incorrect length value in the audio control descriptor of the AudioOutput and AudioInput demos
+ * - Added MIDI device demo application to the library
+ * - Fixed problem preventing USB devices from being resumed from a suspended state
+ * - Added new CDC class bootloader to the library, based on the AVR109 bootloader protocol
+ * - Added header to each demo application indicating the mode, class, subclass, standards used and supported speed
+ * - Functions expecting endpoint/pipe numbers are no longer automatically masked against ENDPOINT_EPNUM_MASK or
+ * PIPE_PIPENUM_MASK - this should be manually added to code which requires it
+ * - Fixed DFU class bootloader - corrected frequency of flash page writes, greatly reducing programming time
+ * - Renamed AVR_HOST_GetDeviceConfigDescriptor() to USB_Host_GetDeviceConfigDescriptor() and AVR_HOST_GetNextDescriptor()
+ * to USB_Host_GetNextDescriptor()
+ * - Added new USB_Host_GetNextDescriptorOfTypeBefore() and USB_Host_GetNextDescriptorOfTypeAfter() routines
+ * - Moved configuration descriptor routines to MyUSB/Drivers/USB/Class/, new accompanying ConfigDescriptors.c file
+ * - Added new configuration descriptor comparator API for more powerful descriptor parsing, updated host demos to use the
+ * new comparator API
+ * - Fixed MassStorageHost demo capacity printout, and changed data read/write mode from little-endian to the correct
+ * big-endian for SCSI devices
+ * - Fixed macro/function naming consistency; USB_HOST is now USB_Host, USB_DEV is now USB_Device
+ * - Added better error reporting to host demos
+ * - Added 10 microsecond delay after addressing devices in host mode, to prevent control stalls
+ *
+ *
+ * \section Sec_ChangeLog132 Version 1.3.2 - Released April 1st, 2008
+ *
+ * - Added call to ReconfigureUSART() in USBtoSerial SetLineCoding request, so that baud rate changes
+ * are reflected in the hardware
+ * - Fixed CDC and USBtoSerial demos - Stream commands do not work for control endpoints, and the
+ * GetLineCoding request had an incorrect RequestType mask preventing it from being processed
+ * - Improved reliability of the USBtoSerial demo, adding a busy wait while the buffer is full
+ * - Device control endpoint size is now determined from the device's descriptors rather than being fixed
+ * - Separated out SPI code into new SPI driver in AT90USBXXX driver directory
+ * - Bootloader now returns correct PID for the selected USB AVR model, not just the AT90USB128X PID
+ * - Added support for the RZUSBSTICK board
+ * - Bicolour driver removed in favor of generic LEDs driver
+ * - Added support for the ATMEGA32U4 AVR
+ * - Added MANUAL_PLL_CONTROL compile time option to prevent the USB library from manipulating the PLL
+ *
+ *
+ * \section Sec_ChangeLog131 Version 1.3.1 - Released March 19th 2008
+ *
+ * - Fixed USB to Serial demo - class value in the descriptors was incorrect
+ * - Control endpoint size changed from 64 bytes to 8 bytes to save on USB FIFO RAM and to allow low
+ * speed mode devices to enumerate properly
+ * - USB to Serial demo data endpoints changed to dual-banked 16 byte to allow the demo to work
+ * on USB AVRs with limited USB FIFO RAM
+ * - Changed demo endpoint numbers to use endpoints 3 and 4 for double banking, to allow limited
+ * USB device controller AVRs (AT90USB162, AT90USB82) to function correctly
+ * - Updated Audio Out demo to use timer 1 for AVRs lacking a timer 3 for the PWM output
+ * - Fixed incorrect USB_DEV_OPT_HIGHSPEED entry in the Mass Storage device demo makefile
+ * - Optimized Mass Storage demo for a little extra transfer speed
+ * - Added LED indicators to the Keyboard demo for Caps Lock, Num Lock and Scroll Lock
+ * - Added Endpoint_Read_Stream, Endpoint_Write_Stream, Pipe_Read_Stream and Pipe_Write_Stream functions
+ * (including Big and Little Endian variants)
+ * - Made Dataflash functions inline for speed, removed now empty Dataflash.c driver file
+ * - Added new SetSystemClockPrescaler() macro (thanks to Joerg Wunsch)
+ * - Fixed Endpoint_ClearStall() to function correctly on full USB controller AVRs (AT90USBXXX6/7)
+ * - Endpoint_Setup_In_Clear() and Endpoint_Setup_Out_Clear() no longer set FIFOCON, in line with the
+ * directives in the datasheet
+ * - Fixed PLL prescaler defines for all AVR models and frequencies
+ * - Fixed ENDPOINT_INT_IN and ENDPOINT_INT_OUT definitions
+ * - Added interrupt driven keyboard and mouse device demos
+ * - Combined USB_Device_ClearFeature and USB_Device_SetFeature requests into a single routine for code
+ * size savings
+ * - Added missing Pipe_GetCurrentPipe() macro to Pipe.h
+ *
+ *
+ * \section Sec_ChangeLog130 Version 1.3.0 - Released March 7th 2008
+ *
+ * - Unnecessary control endpoint config removed from device mode
+ * - Fixed device standard request interpreter accidentally processing some class-specific requests
+ * - Added USE_RAM_DESCRIPTORS and USE_EEPROM_DESCRIPTORS compile time options to instruct the library
+ * to use descriptors stored in RAM or EEPROM rather than flash memory
+ * - All demos now disable watchdog on startup, in case it has been enabled by fuses or the bootloader
+ * - USB_DEV_OPT_LOWSPEED option now works correctly
+ * - Added ability to set the USB options statically for a binary size reduction via the USE_STATIC_OPTIONS
+ * compile time define
+ * - USB_Init no longer takes a Mode parameter if compiled for a USB device with no host mode option, or
+ * if forced to a particular mode via the USB_HOST_ONLY or USB_DEVICE_ONLY compile time options
+ * - USB_Init no longer takes an Options parameter if options statically configured by USE_STATIC_OPTIONS
+ * - Endpoint_Ignore_* and Pipe_Ignore_* made smaller by making the dummy variable non-volatile so that the
+ * compiler can throw away the result more efficiently
+ * - Added in an optional GroupID value to each scheduler entry, so that groups of tasks can once again be
+ * controlled by the new Scheduler_SetGroupTaskMode() routine
+ * - Added support for AT90USB162 and AT90USB82 AVR models
+ * - Added support for the STK525 and STK526 boards
+ * - Added support for custom board drivers to be supplied by selecting the board type as BOARD_USER, and
+ * placing board drivers in {Application Directory}/Board/
+ * - PLL is now stopped and USB clock is frozen when detached from host in device mode, to save power
+ * - Joystick defines are now in synch with the schematics - orientation will be rotated for the USBKEY
+ * - Fixed USB_DEV_IsUSBSuspended() - now checks the correct register
+ * - Fixed data transfers to devices when in host mode
+ * - Renamed USB_DEV_OPT_HIGHSPEED to USB_DEV_OPT_FULLSPEED and USB_HOST_IsDeviceHighSpeed() to
+ * USB_HOST_IsDeviceFullSpeed() to be in line with the official USB speed names (to avoid confusion with
+ * the real high speed mode, which is unavailable on the USB AVRs)
+ *
+ *
+ * \section Sec_ChangeLog120 Version 1.2.0 - Released February 4th, 2008
+ *
+ * - Added USB_DeviceEnumerationComplete event for host mode
+ * - Added new Scheduler_Init routine to prepare the scheduler, so that tasks can be started and
+ * stopped before the scheduler has been started (via Scheduler_Start)
+ * - Connection events in both Device and Host mode are now interrupt-driven, allowing the USB management
+ * task to be stopped when the USB is not connected to a host or device
+ * - All demos updated to stop the USB task when not in use via the appropriate USB events
+ * - Mass Storage Host demo application updated to function correctly with all USB flash disks
+ * - Mass Storage Host demo application now prints out the capacity and number of LUNs in the attached
+ * device, and prints the first block as hexadecimal numbers rather than ASCII characters
+ * - Endpoint and Pipe clearing routines now clear the Endpoint/Pipe interrupt and status flags
+ * - Shifted error handling code in the host enum state machine to a single block, to reduce code complexity
+ * - Added in DESCRIPTOR_TYPE, DESCRIPTOR_SIZE and DESCRIPTOR_CAST macros to make config descriptor processing
+ * clearer in USB hosts and DESCRIPTOR_ADDRESS for convenience in USB devices
+ * - Added in alloca macro to common.h, in case the user is using an old version of avr-lib-c missing the macro
+ *
+ *
+ * \section Sec_ChangeLog130 Version 1.1.0 - Released January 25th 2008
+ *
+ * - Fixed DCONNI interrupt being enabled accidentally after a USB reset
+ * - Fixed DDISCI interrupt not being disabled when a device is not connected
+ * - Added workaround for powerless pull-up devices causing false disconnect interrupts
+ * - Added USB_DeviceEnumerationFailed event for Host mode
+ * - AVR_HOST_GetDeviceConfigDescriptor routine no longer modifies ConfigSizePtr if a valid buffer
+ * pointer is passed
+ * - Added ALLOCABLE_BYTES to DynAlloc, and added code to make the size of key storage variables
+ * dependant on size of memory parameters passed in via the user project's makefile
+ * - Fixed incorrect device reset routine being called in USBTask
+ * - Devices which do not connect within the standard 300mS are now supported
+ * - Removed incorrect ATTR_PURE from Scheduler_SetTaskMode(), which was preventing tasks from being
+ * started/stopped, as well as USB_InitTaskPointer(), which was breaking dual device/host USB projects
+ * - Changed scheduler to use the task name rather than IDs for setting the task mode, eliminating the
+ * need to have a task ID list
+ * - ID transition interrupt now raises the appropriate device/host disconnect event if device attached
+ * - Fixed double VBUS change (and VBUS -) event when detaching in device mode
+ * - Added ability to disable ANSI terminal codes by the defining of DISABLE_TERMINAL_CODES in makefile
+ * - Removed return from ConfigurePipe and ConfigureEndpoint functions - use Pipe_IsConfigured() and
+ * Endpoint_IsConfigured() after calling the config functions to determine success
+ */
+
projects / pub / USBasp.git / commitdiff
