Added LEDs_ToggleLEDs() function to several board LED drivers which were missing it (thanks to Andrei Krainev).

Simplify some of the LED driver functions to produce more compact code.

Added new PRNT_Host_BytesReceived() and PRNT_Host_ReceiveByte() functions to the Print Host Class driver.

Must save and restore the endpoint/pipe interrupt enable flags during reconfiguration of all endpoints/pipes in the Endpoint_ConfigureEndpoint() and Pipe_ConfigurePipe() routines.

Fix bug in Pipe_ConfigurePipe() breaking already configured pipes that was accidentally clearing the pipe's IN mode.

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.

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.

Reduced HOST_DEVICE_SETTLE_DELAY_MS to 1000ms down from 1500ms to improve device compatibility while in USB Host mode, as some devices will drop off the USB bus if no connection is made within a timeout period.

Added board hardware driver support for the Olimex AVR-USB-162 development board (thanks to Steve Fawcett).

Clarify in the project documentation files what the each of the different USB AVR device "series" comprises of.

Fix incorrect ADC driver documentation for the parameters of ADC_Init(), fix incorrect call to ADC_Init() in the TemperatureDatalogger project.

Fix up documentation - remove obsolete Scheduler Overview page, roll documentation into the documentation for the (deprecated) Simple Scheduler module.

Remove remaining void* descriptor casts in the projects and demos that were not removed when the GetDescriptor callback function's signature was altered.

Fixed LowLevel PrinterHost demo not sending control requests to the attached printer with the correct printer interface wIndex value.

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).

Optimise Endpoint_ConfigureEndpoint_Prv() function to produce smaller code when CONTROL_ONLY_DEVICE compile time token is defined.

Split out endpoint and pipe stream functions into new EndpointStream.c/.h and PipeStream.c/.h files.

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 inbetween sections, so that long callbacks or event handlers will not break communications with the host by exceeding the maximum control request stage timeout period.

Moved calls to Device mode Class Driver events to after the request has been acknowledged, so that long event handlers do do skew the timing of the control requests.


Fixed USBtoSerial and Benito project SetLineEncoding calls failing if the USART is busy, due to the RX ISR delaying the control request handler.

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).

Clarify in the documentation that the Audio demos and driver is for the Audio 1.0 specification, not the newer (and more advanced/less supported) 2.0 specification.

Remove unneccesary call to USB_Device_EnableSOFEvents() in the MassStorage and MIDI Device Class demos.

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 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)

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).

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.

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.

Tighten up the code in the delta movement detection code in the MouseHostWithParser and JoystickHostWithParser demos. Make the ClassDriver JoystickHostWithParser demo use the HID_ALIGN_DATA() macro instead of manual shifting and casting.

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 over all device demos to use a clearer algorithm for the configuring of the application's endpoints.

Fix invocations of avr-size in all makefiles broken on unpatched *nix systems, due to the recent update to the latest WinAVR makefile template.

Fixed software application start command broken in the DFU class bootloader when dfu-programmer is used due to application start address corruption.

Fix XPLAINBridge project discarding characters from the USB interface due to a double read from the endpoint.

Make XPLAINBridge and USBtoSerial projects more reliable by forcing a flush if the UART-to-USB buffer becomes nearly full.

Reduce locking in the LightweightRingBuffer.h header files by only locking on the update of the buffer count, and require insertions and removals from each buffer to occur in only one execution thread.

Fix CDC_*_ReceiveByte() returning 0 when the interface is not configured, instead of the new -1 error value.

Fix CDC_Host_ReceiveByte() not re-freezing the pipe if no packet has been received.

Remove redundant Pipe token set commands in the CDC and RNDIS host class drivers.

Invert the logic for the VBUS power light in the AVRISP-MKII project for the USBTINY-MKII board target.