Make Endpoint control transfers more reliable; early-abort when an incomplete packet is sent from the host (indicating end of transfer), add check for control reads to ensure that no more than wLength bytes are read from the interface.

Condense sequential printf_P/puts_P calls to single printf_P calls for size and clarity.

Renamed all library events to properly seperate out Device and Host mode events. Changed the firing conditions for some events to ensure that events are fired by their own USB mode only.

Remove VBUS events - not needed as the library takes care of VBUS detection and feedback on supported AVRs via the USB_Device_Connected and USB_Device_Disconnected events.

Fixed incorrect Host state assignment in the incomplete BluetoothHost demo.

Added new Endpoint_ClearStatusStage() convenience function to assist with the status stages of control transfers.

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.

Fixed possible enumeration errors from spinloops which may fail to exit if the USB connection is severed before the exit condition becomes true.

Add explicit guards to all device mode tasks to ensure the device is connected and configured before running the task, to prevent any user tasks from locking up the main USB task if the device has not been properly configured.

Fixed PrinterHost demo Printer_GetDeviceID() routine not removing the Device ID string length from the start of the returned array (thanks to John Andrews).

Fixed error in new pipe stream function template system not setting the right device token for R/W operations (also thanks to John Andrews).

Remove ClearPipeStall routine from the StillImageHost demo, as there is now a version of the function built into the library itself.

Cleaner solution to the PrinterHost data send routine problem of embedded NULLs - use a special structure to hold the data string plus the length in bytes of the data.

Fix unfinished printer host demo - some printer languages use embedded NULLs and so strlen() won't work in all cases. Ensure NULL terminator for the test page is not transmitted to the device.

Don't send terminal RESET codes via serial - just set the foreground colour and assume the user has the background set to something sane, so that the demos don't wipe out custom user terminal settings.

Use sane ANSI terminal escape codes for the Host mode demos, so that they do not cause eye-searing, unreadable text on terminals which parse the escape codes properly.

Change over Printer_GetDeviceID() to require a pointer to the destination buffer plus the buffer size, rather than using a pointer to a special structure.

Make new Printer_SendData() function to hide the implementation of sending data to an attached printer, cleaning up the main demo source file body.

Fix PrinterHost demo so that it will only enumerate printers with Bidirectional protocol encapsulation. Change enumeration code to automatically select the correct alternate setting for the printer interface to select the bidirectional protocol.

Fixed incorrect PIPE_EPNUM_MASK mask causing pipe failures on devices with endpoint addresses of 8 and above (thanks to John Andrews).

Magstripe Project: Ensure that empty tracks still print out a newline seperator so that the host always knows what track data is being sent.

Updates to PrinterHost demo to include some PCL test data plus fixes to the GetDeviceID routine.

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). Changed over all host mode demos to use the new state.

Added verbose documentation for each of the USB Host state machine states.

Fixed Host mode to Device mode UID change not causing a USB Disconnect event when a device was connected.

Seperated out Lib components of the incomplete BluetoothHost demo application out into a seperate Lib subfolder.

Changed F_CLOCK entries in project makefiles to alias to F_CPU by default, as this is the most common case.

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.

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.

Fix documentation mentioning Pipe_GetCurrentToken() function when real name is Pipe_GetPipeToken().

Converted Host mode demos to schedulerless. Fixed host mode broken due to earlier Start-of-frame event experiments.

Copy and convert incomplete Bluetooth Host demo to the library.