Fix USBtoSerial device demos -- ensure the UDR1 register contents is read in under...
[pub/lufa.git] / LUFA / ManPages / ChangeLog.txt
1 /** \file
2 *
3 * This file contains special DoxyGen information for the generation of the main page and other special
4 * documentation pages. It is not a project source file.
5 */
6
7 /** \page Page_ChangeLog Project Changelog
8 *
9 * \section Sec_ChangeLogXXXXXX Version XXXXXX
10 *
11 * <b>New:</b>
12 * - Added new host class drivers and matching demos to the library for rapid application development
13 * - Added flag to the HID report parser to indicate if a device has multiple reports
14 * - Added new EVENT_USB_Device_StartOfFrame() event, controlled by the new USB_Device_EnableSOFEvents() and
15 * USB_Device_DisableSOFEvents() macros to give bus-synchronised millisecond interrupts when in USB device mode
16 *
17 * <b>Changed:</b>
18 * - SetIdle requests to the HID device driver with a 0 idle period (send changes only) now only affect the requested
19 * HID interface within the device, not all HID interfaces
20 * - Added new CDC_Device_Flush() command to the device mode CDC Class driver
21 * - Added explicit attribute masks to the device mode demos' descriptors
22 *
23 * <b>Fixed:</b>
24 * - Fixed possible lockup in the CDC device class driver, when the host sends data that is a multiple of the
25 * endpoint's bank
26 * - Fixed swapped paremeters in the HID state memory copy call while processing a HID PUSH item in the HID report parser
27 * - Fixed memory corruption HID report parser when too many COLLECTION or PUSH items were processed
28 * - Fixed HID report parser not resetting the FEATURE item count when a REPORT ID item is encountered
29 *
30 *
31 * \section Sec_ChangeLog090810 Version 090810
32 *
33 * <b>New:</b>
34 * - Added new device class drivers and matching demos to the library for rapid application development
35 * - Added new PrinterHost demo (thanks to John Andrews)
36 * - Added USB Missle Launcher project, submitted by Dave Fletcher
37 * - Added new Benito Arduino Programmer project
38 * - Added incomplete device and host mode demos for later enhancement
39 * - Updated MassStorage device block write routines to use ping-pong Dataflash buffering to increase throughput by around 30%
40 * - Error status LEDs shown when device endpoint configuration fails to complete in all demos and projects
41 * - Added new USB_Host_SetDeviceConfiguration() convenience function for easy configuration selection of devices while in USB
42 * host mode
43 * - Added new USB_Host_ClearPipeStall() convenience function to clear a stall condition on an attached device's endpoint
44 * - Added new USB_Host_GetDeviceDescriptor() convenience function to retrieve the attached device's Device descriptor
45 * - Added new Endpoint_ClearStatusStage() convenience function to assist with the status stages of control transfers
46 * - Added new USE_INTERNAL_SERIAL define for using the unique serial numbers in some AVR models as the USB device's serial number,
47 * added NO_INTERNAL_SERIAL compile time option to turn off new serial number reading code
48 * - Added new DATAFLASH_CHIP_MASK() macro to the Dataflash driver, which returns the Dataflash select mask for the given chip index
49 * - Added new HOST_STATE_WaitForDeviceRemoval host state machine state for non-blocking disabling of device communications until the
50 * device has been removed (for use when an error occurs or communications with the device have completed)
51 * - Added new FAST_STREAM_TRANSFERS compile time option for faster stream transfers via multiple bytes copied per stream loop
52 * - Added stdio stream demo code to the CDC device demos, to show how to create standard streams out of the virtual serial ports
53 * - Added new EEPROM and FLASH buffer versions of the Endpoint and Pipe stream functions
54 * - Added new USE_FLASH_DESCRIPTORS and FIXED_NUM_CONFIGURATIONS compile time options
55 * - Added support for the new ATMEGA32U2, ATMEGA16U2 and ATMEGA8U2 AVR models
56 * - Added new USB_DeviceState variable to keep track of the current Device mode USB state
57 * - Added new LEDs_ToggleLEDs() function to the LEDs driver
58 * - Added new Pipe_BoundEndpointNumber() and Pipe_IsEndpointBound() functions
59 * - Added new DEVICE_STATE_AS_GPIOR and HOST_STATE_AS_GPIOR compile time options
60 * - Added 404 Not Found errors to the webserver in the RNDIS demos to indicate invalid URLs
61 *
62 * <b>Changed:</b>
63 * - Deprecated psuedo-scheduler and removed dynamic memory allocator from the library (first no longer needed and second unused)
64 * - The device-mode CALLBACK_USB_GetDescriptor() function now has an extra parameter so that the memory space in which the requested
65 * descriptor is located can be specified. This means that descriptors can now be located in multiple memory spaces within a device.
66 * - Removed vague USB_IsConnected global - test USB_DeviceState or USB_HostState explicitly to gain previous functionality
67 * - Removed USB_IsSuspended global - test USB_DeviceState against DEVICE_STATE_Suspended instead
68 * - Extended USB_GetDeviceConfigDescriptor() routine to require the configuration number within the device to fetch
69 * - Dataflash_WaitWhileBusy() now always ensures that the dataflash is ready for the next command immediately after returning,
70 * no need to call Dataflash_ToggleSelectedChipCS() afterwards
71 * - Low level API MIDI device demo no longer blocks if a note change event is sent while the endpoint is not ready
72 * - Pipe_GetErrorFlags() now returns additional error flags for overflow and underflow errors
73 * - Pipe stream functions now automatically set the correct pipe token, so that bidirectional pipes can be used
74 * - Pipe_ConfigurePipe() now automatically defaults IN pipes to accepting infinite IN requests, this can still be changed by calling
75 * the existing Pipe_SetFiniteINRequests() function
76 * - Changed F_CLOCK entries in project makefiles to alias to F_CPU by default, as this is the most common case
77 * - Host mode demos now use sane terminal escape codes, so that text is always readable and events/program output is visually distinguished
78 * from oneanother using foreground colours
79 * - Internal per-device preprocessing conditions changed to per-device series rather than per-controller group for finer-grain
80 * internal control
81 * - Interrupts are no longer disabled during the processing of Control Requests on the default endpoint while in device mode
82 * - AudioOutput demos now always output to board LEDs, regardless of output mode (removed AUDIO_OUT_LEDS project option)
83 * - Removed SINGLE_DEVICE_CONFIGURATION compile time option in favour of the new FIXED_NUM_CONFIGURATIONS option so that the exact number
84 * of device configurations can be defined statically
85 * - Removed VBUS events, as they are already exposed to the user application via the regular device connection and disconnection events
86 * - Renamed and altered existing events to properly seperate out Host and Device mode events
87 *
88 * <b>Fixed:</b>
89 * - Changed bootloaders to use FLASHEND rather than the existence of RAMPZ to determine if far FLASH pointers are needed to fix
90 * bootloaders on some of the USB AVR devices where avr-libc erronously defines RAMPZ
91 * - Fixes to MassStorageHost for better device compatibility (increase command timeout, change MassStore_WaitForDataReceived()
92 * to only unfreeze and check one data pipe at a time) to prevent incorrect device enumerations and freezes while trasferring data
93 * - Make Pipe_ConfigurePipe() mask the given endpoint number against PIPE_EPNUM_MASK to ensure the endpoint IN direction bit is
94 * cleared to prevent endpoint type corruption
95 * - Fixed issue opening CDC-ACM ports on hosts when the CDC device tries to send data before the host has set the line encoding
96 * - Fixed USB_OPT_MANUAL_PLL option being ignored during device disconnects on some models (thanks to Brian Dickman)
97 * - Fixed documentation mentioning Pipe_GetCurrentToken() function when correct function name is Pipe_GetPipeToken()
98 * - Fixed ADC driver for the ATMEGA32U4 and ATMEGA16U4 (thanks to Opendous Inc.)
99 * - Fixed CDCHost demo unfreezing the pipes at the point of configuration, rather than use
100 * - Fixed MassStorage demo not clearing the reset flag when a Mass Storage Reset is issued while not processing a command
101 * - Fixed USB_Host_SendControlRequest() not re-suspending the USB bus when initial device ready-wait fails
102 * - Fixed USB Pad regulator not being disabled on some AVR models when the USB_OPT_REG_DISABLED option is used
103 * - Fixed Host mode to Device mode UID change not causing a USB Disconnect event when a device was connected
104 * - Fixed Mouse/Keyboard demos not performing the correct arithmetic on the Idle period at the right times (thanks to Brian Dickman)
105 * - Fixed GenericHID failing HID class tests due to incorrect Logical Minimum and Logical Maximum values (thanks to Søren Greiner)
106 * - Fixed incorrect PIPE_EPNUM_MASK mask causing pipe failures on devices with endpoint addresses of 8 and above (thanks to John Andrews)
107 * - Fixed report data alignment issues in the MouseHostWithParser demo when X and Y movement data size is not a multiple of 8 bits
108 * - Fixed HID Report Descriptor Parser not correctly resetting internal states when a REPORT ID element is encountered
109 * - Fixed incorrect BUTTONS_BUTTON1 for the STK526 target
110 * - Fixed RNDIS demos freezing when more than one connection was attempted simultaneously, causing memory corruption
111 * - Fixed USBtoSerial demo receiving noise from the USART due to pullup not being enabled
112 *
113 *
114 * \section Sec_ChangeLog090605 Version 090605
115 *
116 * - Fixed bug in RNDISEthernet and DualCDC demos not using the correct USB_ControlRequest structure for control request data
117 * - Fixed documentation showing incorrect USB mode support on the supported AVRs list
118 * - Fixed RNDISEthernet not working under Linux due to Linux requiring an "optional" RNDIS request which was unhandled
119 * - Fixed Mouse and Keyboard device demos not acting in accordance with the HID specification for idle periods (thanks to Brian Dickman)
120 * - Removed support for endpoint/pipe non-control interrupts; these did not act in the way users expected, and had many subtle issues
121 * - Fixed Device Mode not handling Set Feature and Clear Feature Chapter 9 requests that are addressed to the device (thanks to Brian Dickman)
122 * - Moved control endpoint interrupt handling into the library itself, enable via the new INTERRUPT_CONTROL_ENDPOINT token
123 * - Fixed CDCHost not clearing configured pipes and resetting configured pipes mask when a partially enumerated invalid CDC
124 * interface is skipped
125 * - Clarified the size of library tokens which accept integer values in the Compile Time Tokens page, values now use the smallest datatype
126 * inside the library that is able to hold their defined value to save space
127 * - Removed DESCRIPTOR_ADDRESS() macro as it was largely supurflous and only served to obfuscate code
128 * - Rewritten event system to remove all macros, to make user code clearer
129 * - Fixed incorrect ENDPOINT_EPNUM_MASK mask preventing endpoints above EP3 from being selected (thanks to Jonathan Oakley)
130 * - Removed STREAM_CALLBACK() macro - callbacks now use regular function definitions to clarify user code
131 * - Removed DESCRIPTOR_COMPARATOR() macro - comparators should now use regular function definitions to clarify user code
132 * - USB_IsConnected is now cleared before the USB_Disconnect() event is fired in response to VBUS being removed
133 * - Fixed incorrect PID value being used in the USBtoSerial project (thanks to Phill)
134 * - Deleted StdDescriptors.c, renamed USB_GetDescriptor() to CALLBACK_USB_GetDescriptor, moved ConfigDescriptor.c/.h from the
135 * LUFA/Drivers/USB/Class/ directory to LUFA/Drivers/USB/HighLevel/ in preperation for the new USB class APIs
136 * - Moved out each demos' functionality library files (e.g. Ring Buffer library) to /Lib directories for a better directory structure
137 * - Removed Tx interrupt from the USBtoSerial demo; now sends characters via polling to ensure more time for the Rx interrupt
138 * - Fixed possible enumeration errors from spinloops which may fail to exit if the USB connection is severed before the exit condition
139 * becomes true
140 *
141 *
142 * \section Sec_ChangeLog090510 Version 090510
143 *
144 * - Added new GenericHIDHost demo
145 * - Corrections to the KeyboardHost and MouseHost demos' pipe handling to freeze and unfreeze the data pipes at the point of use
146 * - KeyboardHost, MouseHost and GenericHIDHost demos now save and restore the currently selected pipe inside the pipe ISR
147 * - Changed GenericHID device demo to use the LUFA scheduler, added INTERRUPT_DATA_ENDPOINT and INTERRUPT_CONTROL_ENDPOINT compile
148 * time options
149 * - All comments in the library, bootloaders, demos and projects have now been spell-checked and spelling mistakes/typos corrected
150 * - Added new PIMA_DATA_SIZE() define to the Still Image Host demo
151 * - Add call to MassStore_WaitForDataReceived() in MassStore_GetReturnedStatus() to ensure that the CSW has been received in the
152 * extended MSC timeout period before continuing, to prevent long processing delays from causing the MassStore_GetReturnedStatus()
153 * to early-abort (thanks to Dmitry Maksimov)
154 * - Move StdRequestType.h, StreamCallbacks.h, USBMode.h from the LowLevel USB driver directory to the HighLevel USB driver directory,
155 * where they are more suited
156 * - Removed all binary constants and replaced with decimal or hexadecimal constants so that unpatched GCC compilers can still build the
157 * code without having to be itself patched and recompiled first
158 * - Added preprocessor checks and documentation to the bootloaders giving information about missing SIGNATURE_x defines due to
159 * outdated avr-libc versions.
160 * - Added support to the CDCHost demo for devices with multiple CDC interfaces which are not the correct ACM type preceding the desired
161 * ACM CDC interface
162 * - Fixed GenericHID demo not starting USB and HID management tasks when not using interrupt driven modes (thanks to Carl Kjeldsen)
163 * - Fixed RNDISEthenet demo checking the incorrect message field for packet size constraints (thanks to Jonathan Oakley)
164 * - Fixed WriteNextReport code in the GenericHIDHost demo using incorrect parameter types and not selecting the correct endpoint
165 * - Adjusted sample CTC timer calculations in the AudioOutput and AudioInput demos to match the CTC calculations in the AVR datasheet,
166 * and to fix instances where rounding caused the endpoint to underflow (thanks to Robin Theunis)
167 * - The USB_Host_SendControlRequest() function no longer automatically selects the Control pipe (pipe 0), so that other control type
168 * pipes can be used with the function
169 * - The USB Host management task now saves and restores the currently selected pipe before and after the task completes
170 * - Fixed GenericHIDHost demo report write routine incorrect for control type requests (thanks to Andrei Krainev)
171 * - Removed Endpoint_ClearCurrentBank() and Pipe_ClearCurrentBank() in favour of new Endpoint_ClearIN(), Endpoint_ClearOUT(),
172 * Pipe_ClearIN() and Pipe_ClearOUT() macros (done to allow for the detection of packets of zero length)
173 * - Renamed *_ReadWriteAllowed() macros to *_IsReadWriteAllowed() to remain consistent with the rest of the LUFA API
174 * - Endpoint_IsSetupReceived() macro has been renamed to Endpoint_IsSETUPReceived(), Endpoint_ClearSetupReceived() macro has been
175 * renamed to Endpoint_ClearSETUP(), the Pipe_IsSetupSent() macro has been renamed to Pipe_IsSETUPSent() and the
176 * Pipe_ClearSetupSent() macro is no longer applicable and should be removed - changes made to compliment the new endpoint and pipe
177 * bank management API
178 * - Updated all demos, bootloaders and projects to use the new endpoint and pipe management APIs (thanks to Roman Thiel from Curetis AG)
179 * - Updated library doxygen documentation, added groups, changed documentation macro functions to real functions for clarity
180 * - Removed old endpoint and pipe aliased read/write/discard routines which did not have an explicit endian specifier for clarity
181 * - Removed the ButtLoadTag.h header file, as no one used for its intended purpose anyway
182 * - Renamed the main Drivers/AT90USBXXX directory to Drivers/Peripheral, renamed the Serial_Stream driver to SerialStream
183 * - Fixed CDC and USBtoSerial demos freezing where buffers were full while still transmitting or receiving (thanks to Peter Hand)
184 * - Removed "Host_" section of the function names in ConfigDescriptor.h, as most of the routines can now be used in device mode on the
185 * device descriptor
186 * - Renamed functions in the HID parser to have a "USB_" prefix and the acronym "HID" in the name
187 * - Fixed incorrect HID interface class and subclass values in the Mouse and KeyboardMouse demos (thanks to Brian Dickman)
188 * - Capitalised the "Descriptor_Search" and "Descriptor_Search_Comp" prefixes of the values in the DSearch_Return_ErrorCodes_t and
189 * DSearch_Comp_Return_ErrorCodes_t enums
190 * - Removed "ERROR" from the enum names in the endpoint and pipe stream error code enums
191 * - Renamed the USB_PowerOnErrorCodes_t enum to USB_InitErrorCodes_t, renamed the POWERON_ERROR_NoUSBModeSpecified enum value to
192 * USB_INITERROR_NoUSBModeSpecified
193 * - Renamed USB_PowerOnFail event to USB_InitFailure
194 * - Renamed OTG.h header functions to be more consistent with the rest of the library API
195 * - Changed over all deprecated GCC structure tag initializers to the standardized C99 format (thanks to Mike Alexander)
196 * - USB_HostRequest renamed to USB_ControlRequest, entire control request header is now read into USB_ControlRequest in Device mode
197 * rather than having the library pass only partially read header data to the application
198 * - The USB_UnhandledControlPacket event has had its parameters removed, in favour of accessing the new USB_ControlRequest structure
199 * - The Endpoint control stream functions now correctly send a ZLP to the host when less data than requested is sent
200 * - Fixed USB_RemoteWakeupEnabled flag never being set (the REMOTE WAKEUP Set Feature request was not being handled)
201 * - Renamed the FEATURELESS_CONTROL_ONLY_DEVICE compile-time token to CONTROL_ONLY_DEVICE
202 * - Endpoint configuration is now refined to give better output when all configurations have static inputs - removed the now useless
203 * STATIC_ENDPOINT_CONFIGURATION compile time token
204 * - Fixed SPI driver init function not clearing SPI2X bit when not needed
205 * - Fixed PREVENT ALLOW MEDIUM REMOVAL command issuing in the MassStorageHost demo using incorrect parameters (thanks to Mike Alex)
206 * - Fixed MassStorageHost demo broken due to an incorrect if statement test in MassStore_GetReturnedStatus()
207 * - Fixed reversed signature byte ordering in the CDC bootloader (thanks to Johannes Raschke)
208 * - Changed PIPE_CONTROLPIPE_DEFAULT_SIZE from 8 to 64 to try to prevent problems with faulty devices which do not respect the given
209 * wLength value when reading in the device descriptor
210 * - Fixed missing semicolon in the ATAVRUSBRF01 LED board driver code (thanks to Morten Lund)
211 * - 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
212 * with less than four LEDs without code modifications (thanks to Morten Lund)
213 * - Changed HWB board driver to Buttons driver, to allow for the support of future boards with more than one mounted GPIO button
214 * - Serial driver now correctly calculates the baud register value when in double speed mode
215 * - Init function of the Serial driver is now static inline to product smaller code for the common-case of static init values
216 *
217 *
218 * \section Sec_ChangeLog090401 Version 090401
219 *
220 * - Fixed MagStripe project configuration descriptor containing an unused (blank) endpoint descriptor
221 * - Incorporated makefile changes by Denver Gingerich to retain compatibility with stock (non-WinAVR) AVR-GCC installations
222 * - Fixed makefile EEPROM programming targets programming FLASH data in addition to EEPROM data
223 * - LUFA devices now enumerate correctly with LUFA hosts
224 * - Fixed Configuration Descriptor search routine freezing when a comparator returned a failure
225 * - Removed HID report item serial dump in the MouseHostWithParser and KeyboardHostWithParser - useful only for debugging, and
226 * slowed down the enumeration of HID devices too much
227 * - Increased the number of bits per track which can be read in the MagStripe project to 8192 when compiled for the AT90USBXXX6/7
228 * - Fixed KeyboardMouse demo discarding the wIndex value in the REQ_GetReport request
229 * - USBtoSerial demo now discards all Rx data when not connected to a USB host, rather than buffering characters for transmission
230 * next time the device is attached to a host.
231 * - Added new F_CLOCK compile time constant to the library and makefiles, to give the raw input clock (used to feed the PLL before any
232 * clock prescaling is performed) frequency, so that the PLL prescale mask can be determined
233 * - Changed stream wait timeout counter to be 16-bit, so that very long timeout periods can be set for correct communications with
234 * badly designed hosts or devices which greatly exceed the USB specification limits
235 * - Mass Storage Host demo now uses a USB_STREAM_TIMEOUT_MS of two seconds to maintain compatibility with poorly designed devices
236 * - Function attribute ATTR_ALWAYSINLINE renamed to ATTR_ALWAYS_INLINE to match other function attribute macro naming conventions
237 * - Added ATTR_ALWAYS_INLINE attribute to several key inlined library components, to ensure they are inlined in all circumstances
238 * - Removed SetSystemClockPrescaler() macro, the clock_prescale_set() avr-libc macro has been corrected in recent avr-libc versions
239 * - Fixed incorrect/missing control status stage transfers on demos, bootloaders and applications (thanks to Nate Lawson)
240 * - The NO_CLEARSET_FEATURE_REQUEST compile time token has been renamed to FEATURELESS_CONTROL_ONLY_DEVICE, and its function expanded
241 * to also remove parts of the Get Status chapter 9 request to further reduce code usage
242 * - Makefile updated to include output giving the currently selected BOARD parameter value
243 * - Board Dataflash driver now allows for dataflash ICs which use different shifts for setting the current page/byte address (thanks
244 * to Kenneth Clubb)
245 * - Added DataflashManager_WriteBlocks_RAM() and DataflashManager_ReadBlocks_RAM() functions to the MassStorage demo, to allow for easy
246 * interfacing with a FAT library for dataflash file level access
247 * - Corrected CDC class bootloader to fix a few bugs, changed address counter to store x2 addresses for convenience
248 * - Fixed typos in the SPI driver SPI_SPEED_FCPU_DIV_64 and SPI_SPEED_FCPU_DIV_128 masks (thanks to Markus Zocholl)
249 * - Keyboard and Mouse device demos (normal, data interrupt and fully interrupt driven) combined into unified keyboard and mouse demos
250 * - Keyboard and Mouse host demos (normal and data interrupt driven) combined into unified keyboard and mouse demos
251 * - Removed AVRISP_Programmer project due to code quality concerns
252 * - Fixed CDC demo not sending an empty packet after each transfer to prevent the host from buffering incoming data
253 * - Fixed documentation typos and preprocessor checks relating to misspellings of the USE_RAM_DESCRIPTORS token (thanks to Ian Gregg)
254 * - Fixed USBTask.h not conditionally including HostChapter9.h only when USB_CAN_BE_HOST is defined (thanks to Ian Gregg)
255 * - Fixed incorrect ADC driver init register manipulation (thanks to Tobias)
256 * - Added new GenericHID device demo application
257 * - Fixed Still Image Host SImage_SendData() function not clearing the pipe bank after sending data
258 *
259 *
260 * \section Sec_ChangeLog090209 Version 090209
261 *
262 * - PWM timer mode in AudioOut demo changed to Fast PWM for speed
263 * - Updated Magstripe project to work with the latest hardware revision
264 * - Fixed library not responding to the BCERRI flag correctly in host mode, leading to device lockups
265 * - Fixed library handling Get Descriptor requests when not addressed as standard requests to the device or interface (thanks to
266 * Nate Lawson)
267 * - Fixed serious data corruption issue in MassStorage demo dataflash write routine
268 * - Added new NO_CLEARSET_FEATURE_REQUEST compile time token
269 * - USB task now restores previous global interrupt state after execution, rather than forcing global interrupts to be enabled
270 * - Fixed USB_DeviceEnumerationComplete event firing after each configuration change, rather than once after the initial configuration
271 * - Added ENDPOINT_DOUBLEBANK_SUPPORTED() macros to Endpoint.h, altered ENDPOINT_MAX_SIZE() to allow user to specify endpoint
272 * - ENDPOINT_MAX_ENDPOINTS changed to ENDPOINT_TOTAL_ENDPOINTS, PIPE_MAX_PIPES changed to PIPE_TOTAL_PIPES
273 * - Endpoint and Pipe non-control stream functions now ensure endpoint or pipe is ready before reading or writing
274 * - Changed Teensy bootloader to use a watchdog reset when exiting rather than a software jump
275 * - Fixed integer promotion error in MassStorage and MassStorageHost demos, corrupting read/write transfers
276 * - SPI_SendByte is now SPI_TransferByte, added new SPI_SendByte and SPI_ReceiveByte functions for fast one-way transfer
277 * - MassStorage demo changed to use new fast one-way SPI transfers to increase throughput
278 * - MassStorage handling of Mass Storage Reset class request improved
279 * - Altered MassStorage demo dataflash block read code for speed
280 * - Added USB_IsSuspended global flag
281 * - Simplified internal Dual Mode (OTG) USB library code to reduce code size
282 * - Extended stream timeout period to 100ms from 50ms
283 * - Mass Storage Host demo commands now all return an error code from the Pipe_Stream_RW_ErrorCodes_t enum
284 * - Added SubErrorCode parameter to the USB_DeviceEnumerationFailed event
285 * - VBUS drop interrupt now disabled during the manual-to-auto VBUS delivery handoff
286 * - Simplified low level backend so that device/host mode initialization uses the same code paths
287 * - Added workaround for faulty Mass Storage devices which do not implement the required GET_MAX_LUN request
288 * - Removed buggy Telnet application from the RNDIS demo
289 * - Moved Mass Storage class requests in the Mass Storage Host demo to wrapper functions in MassStoreCommands.c
290 * - Fixed incorrect SCSI command size value in the Request Sense command in MassStoreCommands.c
291 * - Added SetProtocol request to HID class non-parser Mouse and Keyboard demos to force devices to use the correct Boot Protocol
292 * - Added new "dfu" and "flip" programming targets to project makefiles
293 * - HID_PARSE_Sucessful enum member typo corrected to HID_PARSE_Successful
294 * - Changed COLLECTION item structures in the HID descriptor parser to include the collection's Usage Page value
295 * - Serial driver now sets Tx line as output, enables pullup on Rx line
296 * - Fixed smaller USB AVRs raising multiple connection and disconnection events when NO_LIMITED_CONTROLLER_CONNECT is disabled
297 * - Added HOST_DEVICE_SETTLE_DELAY_MS to give the host delay after a device is connected before it is enumerated
298 * - Fixed KeyboardHostWithParser demo linking against the wrong global variables
299 * - Completed doxygen documentation of remaining library bootloaders, demos and projects
300 * - Fixed incorrect bootloader start address in the TeensyHID bootloader
301 * - Added HWB button whole-disk ASCII dump functionality to MassStoreHost demo
302 * - Replaced printf_P(PSTR("%c"), {Variable}) calls with putchar(<Variable>) for speed and size savings
303 * - Serial driver now accepts baud rates over 16-bits in size, added double speed flag option
304 * - Fixed incorrect callback abort return value in Pipe.c
305 * - Added new flip-ee and dfu-ee makefile targets (courtesy of Opendous Inc.)
306 * - Removed reboot-on-disconnect code from the TeensyHID bootloader, caused problems on some systems
307 * - Fixed AudioOutput and AudioInput demos looping on the endpoint data, rather than processing a sample at a time and returning
308 * each time the task runs to allow for other tasks to execute
309 * - Added support for the Atmel ATAVRUSBRF01 board
310 * - Added AVRISP Programmer Project, courtesy of Opendous Inc.
311 * - Fixed CDC Host demo not searching through both CDC interfaces for endpoints
312 * - Fixed incorrect Product String descriptor length in the DFU class bootloader
313 *
314 *
315 * \section Sec_ChangeLog081224 Version 081224
316 *
317 * - MyUSB name changed to LUFA, the Lightweight USB Framework for AVRs
318 * - Fixed Mass Storage Host demo's MassStore_SendCommand() delay in the incorrect place
319 * - Fixed USBtoSerial demo not calling ReconfigureUSART() after a change in the line encoding
320 * - Fixed infinite loop in host mode Host-to-Device control transfers with data stages
321 * - HID report parser now supports devices with multiple reports in one interface via Report IDs
322 * - Fixed RZUSBSTICK board LED driver header incorrect macro definition order causing compile errors
323 * - Calling USB_Init() when the USB interface is already configured now forces a complete interface reset
324 * and re-enumeration - fixes MyUSB DFU bootloader not switching to app code correctly when soft reset used
325 * - Fixed "No newline at end of file" warning when stream callbacks are enabled
326 * - DFU bootloader now uses fixed signature bytes per device, rather than reading them out dynamically for size
327 * - Added new FIXED_CONTROL_ENDPOINT_SIZE and USE_SINGLE_DEVICE_CONFIGURATION switches to statically define certain values to
328 * reduce compiled binary size
329 * - Added new NO_LIMITED_CONTROLLER_CONNECT switch to prevent the library from trying to determine bus connection
330 * state from the suspension and wake up events on the smaller USB AVRs
331 * - Added summary of all library compile time tokens to the documentation
332 * - Added overview of the LUFA scheduler to the documentation
333 * - Removed MANUAL_PLL_CONTROL compile time token, replaced with a mask for the USB_Init() Options parameter
334 * - CDC bootloader now uses the correct non-far or far versions of the pgm_* functions depending on if RAMPZ is defined
335 * - Doxygen documentation now contains documentation on all the projects, bootloaders and most demos included with the library
336 * - CDC bootloader now runs user application when USB disconnected rather than waiting for a hard reset
337 * - MouseHostWithParser and KeyboardHostWithParser now support multiple-report devices
338 * - RNDIS demo can now close connections correctly using the new TCP_APP_CLOSECONNECTION() macro - used in Webserver
339 * - Fixed the DFU bootloader, no longer freezes up when certain files are programmed into an AVR, made reading/writing faster
340 * - Fixed mouse/joystick up/down movements reversed - HID mouse X/Y coordinates use a left-handed coordinate system, not a normal
341 * right-handed system
342 * - Added stub code to the CDC and USBtoSerial demos showing how to read and set the RS-232 handshake lines - not currently used in
343 * the demos, but the example code and supporting defines are now in place
344 * - Interrupts are now disabled when processing a control request in device mode, to avoid exceeding the strict control request
345 * timing requirements.
346 * - All demos now use a central StatusUpdate() function rather than direct calls to the board LED functions, so that the demos can
347 * easily be altered to show different LED combinations (or do something else entirely) as the demo's status changes
348 * - Removed LED commands from the CDC bootloader, unused by most AVR910 programming software
349 * - Fixed RNDIS demo ICMP ping requests echoing back incorrect data
350 * - Added DHCP server code to RNDIS demo, allowing for hands-free auto configuration on any PC
351 * - Fixed DFU bootloader PID value for the ATMEGA16U4 AVR
352 * - Endpoint and Pipe configuration functions now return an error code indicating success or failure
353 * - USB Reset in device mode now resets and disables all device endpoints
354 * - Added intermediate states to the host mode state machine, reducing the USB task blocking time to no more than 1ms explicitly per
355 * invocation when in host mode
356 * - Added support for the ATMEGA32U6 microcontroller
357 * - Added STATIC_ENDPOINT_CONFIGURATION compile time option, enabled in the bootloaders to minimize space usage
358 * - Removed redundant code from the USB device GetStatus() chapter 9 processing routine
359 * - Added new TeensyHID bootloader, compatible with the Teensy HID protocol (http://www.pjrc.com/teensy/)
360 * - Versions are now numbered by release dates, rather than arbitrary major/minor revision numbers
361 * - USB_RemoteWakeupEnabled is now correctly set and cleared by SetFeature and ClearFeature requests from the host
362 * - Changed prototype of GetDescriptor, so that it now returns the descriptor size (or zero if the descriptor doesn't exist)
363 * rather than passing the size back to the caller through a parameter and returning a boolean
364 *
365 *
366 * \section Sec_ChangeLog153 Version 1.5.3 - Released 2nd October, 2008
367 *
368 * - Fixed CDC bootloader using pgmspace macros for some descriptors inappropriately
369 * - Updated all Mouse and Keyboard device demos to include boot protocol support (now works in BIOS)
370 * - Renamed bootloader directories to remove spaces, which were causing build problems on several OSes
371 * - Removed serial number strings from all but the MassStore demo where it is required - users were not
372 * modifying the code to either omit the descriptor or use a unique serial per device causing problems
373 * when multiple units of the same device were plugged in at the same time
374 * - AudioOutput and AudioInput demos now correctly silence endpoints when not enabled by the host
375 * - Added KeyboardMouse demo (Keyboard and Mouse functionality combined into a single demo)
376 * - Added DriverStubs directory to house board level driver templates, to make MyUSB compatible custom board
377 * driver creation easier
378 * - Extended MassStorage demo to support multiple LUNs, 2 by default
379 * - Fixed incorrect device address mask, preventing the device from enumerating with addresses larger than 63
380 * - Fixed incorrect data direction mask in the GetStatus standard request, preventing it from being handled
381 * - Fixed incorrect GetStatus standard request for endpoints, now returns the endpoint STALL status correctly
382 * - Added in new USB_RemoteWakeupEnabled and USB_CurrentlySelfPowered flags rather than using fixed values
383 * - Added DualCDC demo to demonstrate the use of Interface Association Descriptors
384 * - Added pipe NAK detection and clearing API
385 * - Added pipe status change (NAK, STALL, etc.) interrupt API
386 * - Fixed MassStorageHost demo so that it no longer freezes randomly when issuing several commands in a row
387 * - Host demos configuration descriptor routines now return a unique error code when the returned data does
388 * not have a valid configuration descriptor header
389 * - Added Endpoint_WaitUntilReady() and Pipe_WaitUntilReady() functions
390 * - Stream functions now have software timeouts, timeout period can be set by the USB_STREAM_TIMEOUT_MS token
391 * - All demos now pass the USB.org automated Chapter 9 device compliance tests
392 * - All HID demos now pass the USB.org automated HID compliance tests
393 * - Polling interval of the interrupt endpoint in the CDC based demos changed to 0xFF to fix problems on Linux systems
394 * - Changed stream functions to accept a new callback function, with NO_STREAM_CALLBACKS used to disable all callbacks
395 * - Mass Storage demo dataflash management routines changed to use the endpoint stream functions
396 * - Added AVRStudio project files for each demo in addition to the existing Programmer's Notepad master project file
397 * - Re-added call to ReconfigureUSART() in USBtoSerial SetLineCoding request, so that baud rate changes
398 * are reflected in the hardware (change was previously lost)
399 *
400 *
401 * \section Sec_ChangeLog152 Version 1.5.2 - Released 31st July, 2008
402 *
403 * - Fixed SwapEndian_32() function in Common.h so that it now works correctly (wrong parameter types)
404 * - Updated RNDIS demo - notification endpoint is no longer blocking so that it works with faulty Linux RNDIS
405 * implementations (where the notification endpoint is ignored in favour of polling the control endpoint)
406 * - Fixed incorrect Vendor Description string return size in RNDIS demo for the OID_GEN_VENDOR_DESCRIPTION OID token
407 * - Added very basic TCP/IP stack and HTTP/TELNET servers to RNDIS demo
408 * - Fixed DFU bootloader exit causing programming software to complain about failed writes
409 * - Fixed DFU bootloader EEPROM programming mode wiping first flash page
410 * - Fixed Clear/Set Feature device standard request processing code (fixing MassStorage demo in the process)
411 * - Added support for the ATMEGA16U4 AVR microcontroller
412 * - Library licence changed from LGPLv3 to MIT license
413 *
414 *
415 * \section Sec_ChangeLog151 Version 1.5.1 - Released 31st July, 2008
416 *
417 * - Changed host demos to enable the host function task on the firing of the USB_DeviceEnumerationComplete event
418 * rather than the USB_DeviceAttached event
419 * - HID Usage Stack now forcefully cleared after an IN/OUT/FEATURE item has been completely processed to remove
420 * any referenced but not created usages
421 * - Changed USB_INT_DisableAllInterrupts() and USB_INT_ClearAllInterrupts(), USB_Host_GetNextDescriptorOfType(),
422 * USB_Host_GetNextDescriptorOfTypeBefore(), USB_Host_GetNextDescriptorOfTypeAfter() to normal functions (from inline)
423 * - Fixed USBtoSerial demo not sending data, only receiving
424 * - Fixed main makefile to make all by default, fixed MagStripe directory case to prevent case-sensitive path problems
425 * - ConfigDescriptor functions made normal, instead of static inline
426 * - Pipe/Endpoint *_Ignore_* functions changed to *_Discard_*, old names still present as aliases
427 * - Fixed ENDPOINT_MAX_SIZE define to be correct on limited USB controller AVRs
428 * - Changed endpoint and pipe size translation routines to use previous IF/ELSE IF cascade code, new algorithmic
429 * approach was buggy and caused problems
430 * - Bootloaders now compile with -fno-inline-small-functions option to reduce code size
431 * - Audio demos now use correct endpoint sizes for full and limited controller USB AVRs, double banking in all cases
432 * to be in line with the specification (isochronous endpoints MUST be double banked)
433 * - Added Interface Association descriptor to StdDescriptors.h, based on the relevant USB2.0 ECN
434 * - Fixed MIDI demo, corrected Audio Streaming descriptor to follow the MIDI-specific AS structure
435 * - Fixed HID class demo descriptors so that the HID interface's protocol is 0x00 (required for non-boot protocol HID
436 * devices) to prevent problems on hosts expecting the boot protocol functions to be supported
437 * - Added read/write control stream functions to Endpoint.h
438 * - Fixed AudioOut demo not setting port pins to inputs on USB disconnect properly
439 * - Added RNDISEthernet demo application
440 *
441 *
442 * \section Sec_ChangeLog150 Version 1.5.0 - Released 10 June, 2008
443 *
444 * - Fixed MIDI demo, now correctly waits for the endpoint to be ready between multiple note messages
445 * - Added CDC Host demo application
446 * - Added KeyboardFullInt demo application
447 * - Endpoint and Pipe creation routines now mask endpoint/pipe size with the size mask, to remove transaction
448 * size bits not required for the routines (improves compatibility with devices)
449 * - Fixed AudioInput demo - now correctly sends sampled audio to the host PC
450 * - Fixed AudioOutput demo once more -- apparently Windows requires endpoint packets to be >=192 bytes
451 * - Shrunk round-robbin scheduler code slightly via the use of struct pointers rather than array indexes
452 * - Fixed off-by-one error when determining if the Usage Stack is full inside the HID Report parser
453 * - Renamed Magstripe.h to MagstripeHW.h and moved driver out of the library and into the MagStripe demo folder
454 * - Added preprocessor checks to enable C linkage on the library components when used with a C++ compiler
455 * - Added Still Image Host demo application
456 * - The USB device task now restores the previously selected endpoint, allowing control requests to be transparently
457 * handled via interrupts while other endpoints are serviced through polling
458 * - Fixed device signature being sent in reverse order in the CDC bootloader
459 * - Host demos now have a separate ConfigDescriptor.c/.h file for configuration descriptor processing
460 * - HostWithParser demos now have a separate HIDReport.c/.h file for HID report processing and dumping
461 * - Removed non-mandatory commands from MassStorage demo to save space, fixed SENSE ResponseCode value
462 * - CDC demos now send empty packets after sending a full one to prevent buffering issues on the host
463 * - Updated demo descriptors to use VID/PID values donated by Atmel
464 * - Added DoxyGen documentation to the source files
465 * - Fixed Serial_IsCharRecieved() definition, was previously reversed
466 * - Removed separate USB_Descriptor_Language_t descriptor, USB_Descriptor_String_t is used instead
467 * - Removed unused Device Qualifier descriptor structure
468 * - Renamed the USB_CreateEndpoints event to the more appropriate USB_ConfigurationChanged
469 * - Fixed MassStorageHost demo reading in the block data in reverse
470 * - Removed outdated typedefs in StdRequestType.h, superseded by the macro masks
471 * - Corrected OTG.h is now included when the AVR supports both Host and Device modes, for creating OTG products
472 * - USB_DeviceEnumerationComplete event is now also fired when in device mode and the host has finished its enumeration
473 * - Interrupt driven demos now properly restore previously selected endpoint when ISR is complete
474 * - USB_HOST_TIMEOUT_MS is now overridable in the user project makefile to a custom fixed timeout value
475 * - Renamed USB_Host_SOFGeneration_* macros to more friendly USB_Host_SuspendBus(), USB_Host_ResumeBus()
476 * and USB_Host_IsBusSuspended()
477 * - Renamed *_*_Is* macros to *_Is* to make all flag checking macros consistent, Pipe_SetInterruptFreq() is now
478 * Pipe_SetInterruptPeriod() to use the correct terminology
479 * - UnicodeString member of USB_Descriptor_String_t struct changed to an ordinary int array type, so that the GCC
480 * Unicode strings (prefixed with an L before the opening quotation mark) can be used instead of explicit arrays
481 * of ASCII characters
482 * - Fixed Endpoint/Pipes being configured incorrectly if the maximum endpoint/pipe size for the selected USB AVR
483 * model was given as the bank size
484 * - HID device demos now use a true raw array for the HID report descriptor rather than a struct wrapped array
485 * - Added VERSION_BCD() macro, fixed reported HID and USB version numbers in demo descriptors
486 * - Cleaned up GetDescriptor device chapter 9 handler function
487 * - Added GET_REPORT class specific request to HID demos to make them complaint to the HID class
488 * - Cleaned up setting of USB_IsInitialized and USB_IsConnected values to only when needed
489 * - Removed Atomic.c and ISRMacro.h; the library was already only compatible with recent avr-lib-c for other reasons
490 * - All demos and library functions now use USB standardized names for the USB data (bRequest, wLength, etc.)
491 * - Added USE_NONSTANDARD_DESCRIPTOR_NAMES token to switch back to the non-standard descriptor element names
492 *
493 *
494 * \section Sec_ChangeLog141 Version 1.4.1 - Released 5 May, 2008
495 *
496 * - Enhanced KeyboardWithParser demo, now prints out pressed alphanumeric characters like the standard demo
497 * - Fixed MassStorage demo, read/writes using non mode-10 commands now work correctly
498 * - Corrected version number in Version.h
499 *
500 *
501 * \section Sec_ChangeLog140 Version 1.4.0 - Released 5 May, 2008
502 *
503 * - Added HID Report Parser API to the library
504 * - Added Mouse and Keyboard host demo applications, using the new HID report parser engine
505 * - Added MouseFullInt demo, which demonstrates a fully interrupt (including control requests) mouse device
506 * - Fixed incorrect length value in the audio control descriptor of the AudioOutput and AudioInput demos
507 * - Added MIDI device demo application to the library
508 * - Fixed problem preventing USB devices from being resumed from a suspended state
509 * - Added new CDC class bootloader to the library, based on the AVR109 bootloader protocol
510 * - Added header to each demo application indicating the mode, class, subclass, standards used and supported speed
511 * - Functions expecting endpoint/pipe numbers are no longer automatically masked against ENDPOINT_EPNUM_MASK or
512 * PIPE_PIPENUM_MASK - this should be manually added to code which requires it
513 * - Fixed DFU class bootloader - corrected frequency of flash page writes, greatly reducing programming time
514 * - Renamed AVR_HOST_GetDeviceConfigDescriptor() to USB_Host_GetDeviceConfigDescriptor() and AVR_HOST_GetNextDescriptor()
515 * to USB_Host_GetNextDescriptor()
516 * - Added new USB_Host_GetNextDescriptorOfTypeBefore() and USB_Host_GetNextDescriptorOfTypeAfter() routines
517 * - Moved configuration descriptor routines to MyUSB/Drivers/USB/Class/, new accompanying ConfigDescriptors.c file
518 * - Added new configuration descriptor comparator API for more powerful descriptor parsing, updated host demos to use the
519 * new comparator API
520 * - Fixed MassStorageHost demo capacity printout, and changed data read/write mode from little-endian to the correct
521 * big-endian for SCSI devices
522 * - Fixed macro/function naming consistency; USB_HOST is now USB_Host, USB_DEV is now USB_Device
523 * - Added better error reporting to host demos
524 * - Added 10 microsecond delay after addressing devices in host mode, to prevent control stalls
525 *
526 *
527 * \section Sec_ChangeLog132 Version 1.3.2 - Released April 1st, 2008
528 *
529 * - Added call to ReconfigureUSART() in USBtoSerial SetLineCoding request, so that baud rate changes
530 * are reflected in the hardware
531 * - Fixed CDC and USBtoSerial demos - Stream commands do not work for control endpoints, and the
532 * GetLineCoding request had an incorrect RequestType mask preventing it from being processed
533 * - Improved reliability of the USBtoSerial demo, adding a busy wait while the buffer is full
534 * - Device control endpoint size is now determined from the device's descriptors rather than being fixed
535 * - Separated out SPI code into new SPI driver in AT90USBXXX driver directory
536 * - Bootloader now returns correct PID for the selected USB AVR model, not just the AT90USB128X PID
537 * - Added support for the RZUSBSTICK board
538 * - Bicolour driver removed in favour of generic LEDs driver
539 * - Added support for the ATMEGA32U4 AVR
540 * - Added MANUAL_PLL_CONTROL compile time option to prevent the USB library from manipulating the PLL
541 *
542 *
543 * \section Sec_ChangeLog131 Version 1.3.1 - Released March 19th 2008
544 *
545 * - Fixed USB to Serial demo - class value in the descriptors was incorrect
546 * - Control endpoint size changed from 64 bytes to 8 bytes to save on USB FIFO RAM and to allow low
547 * speed mode devices to enumerate properly
548 * - USB to Serial demo data endpoints changed to dual-banked 16 byte to allow the demo to work
549 * on USB AVRs with limited USB FIFO RAM
550 * - Changed demo endpoint numbers to use endpoints 3 and 4 for double banking, to allow limited
551 * USB device controller AVRs (AT90USB162, AT90USB82) to function correctly
552 * - Updated Audio Out demo to use timer 1 for AVRs lacking a timer 3 for the PWM output
553 * - Fixed incorrect USB_DEV_OPT_HIGHSPEED entry in the Mass Storage device demo makefile
554 * - Optimized Mass Storage demo for a little extra transfer speed
555 * - Added LED indicators to the Keyboard demo for Caps Lock, Num Lock and Scroll Lock
556 * - Added Endpoint_Read_Stream, Endpoint_Write_Stream, Pipe_Read_Stream and Pipe_Write_Stream functions
557 * (including Big and Little Endian variants)
558 * - Made Dataflash functions inline for speed, removed now empty Dataflash.c driver file
559 * - Added new SetSystemClockPrescaler() macro (thanks to Joerg Wunsch)
560 * - Fixed Endpoint_ClearStall() to function correctly on full USB controller AVRs (AT90USBXXX6/7)
561 * - Endpoint_Setup_In_Clear() and Endpoint_Setup_Out_Clear() no longer set FIFOCON, in line with the
562 * directives in the datasheet
563 * - Fixed PLL prescaler defines for all AVR models and frequencies
564 * - Fixed ENDPOINT_INT_IN and ENDPOINT_INT_OUT definitions
565 * - Added interrupt driven keyboard and mouse device demos
566 * - Combined USB_Device_ClearFeature and USB_Device_SetFeature requests into a single routine for code
567 * size savings
568 * - Added missing Pipe_GetCurrentPipe() macro to Pipe.h
569 *
570 *
571 * \section Sec_ChangeLog130 Version 1.3.0 - Released March 7th 2008
572 *
573 * - Unnecessary control endpoint config removed from device mode
574 * - Fixed device standard request interpreter accidentally processing some class-specific requests
575 * - Added USE_RAM_DESCRIPTORS and USE_EEPROM_DESCRIPTORS compile time options to instruct the library
576 * to use descriptors stored in RAM or EEPROM rather than flash memory
577 * - All demos now disable watchdog on startup, in case it has been enabled by fuses or the bootloader
578 * - USB_DEV_OPT_LOWSPEED option now works correctly
579 * - Added ability to set the USB options statically for a binary size reduction via the USE_STATIC_OPTIONS
580 * compile time define
581 * - USB_Init no longer takes a Mode parameter if compiled for a USB device with no host mode option, or
582 * if forced to a particular mode via the USB_HOST_ONLY or USB_DEVICE_ONLY compile time options
583 * - USB_Init no longer takes an Options parameter if options statically configured by USE_STATIC_OPTIONS
584 * - Endpoint_Ignore_* and Pipe_Ignore_* made smaller by making the dummy variable non-volatile so that the
585 * compiler can throw away the result more efficiently
586 * - Added in an optional GroupID value to each scheduler entry, so that groups of tasks can once again be
587 * controlled by the new Scheduler_SetGroupTaskMode() routine
588 * - Added support for AT90USB162 and AT90USB82 AVR models
589 * - Added support for the STK525 and STK526 boards
590 * - Added support for custom board drivers to be supplied by selecting the board type as BOARD_USER, and
591 * placing board drivers in {Application Directory}/Board/
592 * - PLL is now stopped and USB clock is frozen when detached from host in device mode, to save power
593 * - Joystick defines are now in synch with the schematics - orientation will be rotated for the USBKEY
594 * - Fixed USB_DEV_IsUSBSuspended() - now checks the correct register
595 * - Fixed data transfers to devices when in host mode
596 * - Renamed USB_DEV_OPT_HIGHSPEED to USB_DEV_OPT_FULLSPEED and USB_HOST_IsDeviceHighSpeed() to
597 * USB_HOST_IsDeviceFullSpeed() to be in line with the official USB speed names (to avoid confusion with
598 * the real high speed mode, which is unavailable on the USB AVRs)
599 *
600 *
601 * \section Sec_ChangeLog120 Version 1.2.0 - Released February 4th, 2008
602 *
603 * - Added USB_DeviceEnumerationComplete event for host mode
604 * - Added new Scheduler_Init routine to preprepare the scheduler, so that tasks can be started and
605 * stopped before the scheduler has been started (via Scheduler_Start)
606 * - Connection events in both Device and Host mode are now interrupt-driven, allowing the USB management
607 * task to be stopped when the USB is not connected to a host or device
608 * - All demos updated to stop the USB task when not in use via the appropriate USB events
609 * - Mass Storage Host demo application updated to function correctly with all USB flash disks
610 * - Mass Storage Host demo application now prints out the capacity and number of LUNs in the attached
611 * device, and prints the first block as hexadecimal numbers rather than ASCII characters
612 * - Endpoint and Pipe clearing routines now clear the Endpoint/Pipe interrupt and status flags
613 * - Shifted error handling code in the host enum state machine to a single block, to reduce code complexity
614 * - Added in DESCRIPTOR_TYPE, DESCRIPTOR_SIZE and DESCRIPTOR_CAST macros to make config descriptor processing
615 * clearer in USB hosts and DESCRIPTOR_ADDRESS for convenience in USB devices
616 * - Added in alloca macro to common.h, in case the user is using an old version of avr-lib-c missing the macro
617 *
618 *
619 * \section Sec_ChangeLog130 Version 1.1.0 - Released January 25th 2008
620 *
621 * - Fixed DCONNI interrupt being enabled accidentally after a USB reset
622 * - Fixed DDISCI interrupt not being disabled when a device is not connected
623 * - Added workaround for powerless pullup devices causing false disconnect interrupts
624 * - Added USB_DeviceEnumerationFailed event for Host mode
625 * - AVR_HOST_GetDeviceConfigDescriptor routine no longer modifies ConfigSizePtr if a valid buffer
626 * pointer is passed
627 * - Added ALLOCABLE_BYTES to DynAlloc, and added code to make the size of key storage variables
628 * dependant on size of memory parameters passed in via the user project's makefile
629 * - Fixed incorrect device reset routine being called in USBTask
630 * - Devices which do not connect within the standard 300mS are now supported
631 * - Removed incorrect ATTR_PURE from Scheduler_SetTaskMode(), which was preventing tasks from being
632 * started/stopped, as well as USB_InitTaskPointer(), which was breaking dual device/host USB projects
633 * - Changed scheduler to use the task name rather than IDs for setting the task mode, eliminating the
634 * need to have a task ID list
635 * - ID transistion interrupt now raises the appropriate device/host disconnect event if device attached
636 * - Fixed double VBUS change (and VBUS -) event when detatching in device mode
637 * - Added ability to disable ANSI terminal codes by the defining of DISABLE_TERMINAL_CODES in makefile
638 * - Removed return from ConfigurePipe and ConfigureEndpoint functions - use Pipe_IsConfigured() and
639 * Endpoint_IsConfigured() after calling the config functions to determine success
640 */