/** \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_Migration Migrating from Older Versions * * Below is migration information for updating existing projects based on previous versions of the LUFA library * to the next version released. It does not indicate all new additions to the library in each version change, only * areas relevant to making older projects compatible with the API changes of each new release. * * \section Sec_Migration153 Migrating from V1.5.3 to 171208 * * <b>All</b> * - The MyUSB project name has been changed to LUFA (Lightweight Framework for USB AVRs). All references to MyUSB, including macro names, * have been changed to LUFA. * * <b>Library Demos</b> * - The ReconfigureUSART() routine in the USBtoSerial demo was not being called after new line encoding * parameters were set by the host. Projects built on the USBtoSerial code should update to the latest version. * - The HID Parser now supports multiple report (on a single endpoint) HID devices. The MouseHostWithParser and * KeyboardHostWithPaser demos use the updated API functions to function correctly on such devices. Projects * built on either "WithParser" demo should update to the latest code. * - The RNDIS demo TCP stack has been modified so that connections can be properly closed. It is still not * recommended that the MyUSB RNDIS demo TCP/IP stack be used for anything other than demonstration purposes, * as it is neither a full nor a standards compliant implementation. * * <b>Non-USB Library Components</b> * - The Serial_IsCharRecieved() macro has been changed to the correct spelling of Serial_IsCharReceived() in Serial.h. * * <b>Device Mode</b> * - The MANUAL_PLL_CONTROL compile time token has been removed, and replaced with a USB_OPT_MANUAL_PLL mask * to be used in the Options parameter of the USB_Init() function. * - Calling USB_Init() now forces a complete USB interface reset and enumeration, even if the USB interface is * currently initialized. * - Interrupts are now disabled when processing control requests, to avoid problems with interrupts causing the library * or user request processing code to exceed the strict USB timing requirements on control transfers. * - The USB Reset event now resets and disables all device endpoints. If user code depends on endpoints remaining configured * after a Reset event, it should be altered to explicitly re-initialize all user endpoints. * - The prototype for the GetDescriptor function has been changed, as the return value was redundant. The function now * returns the size of the descriptor, rather than passing it back via a parameter, or returns NO_DESCRIPTOR if the specified * descriptor does not exist. * - The NO_DESCRIPTOR_STRING macro has been renamed NO_DESCRIPTOR, and is now also used as a possible return value for the * GetDescriptor function. * * <b>Host Mode</b> * - The MANUAL_PLL_CONTROL compile time token has been removed, and replaced with a USB_OPT_MANUAL_PLL mask * to be used in the Options parameter of the USB_Init() function. * - The HID report parser now supports multiple Report IDs. The HID report parser GetReportItemInfo() and * SetReportItemInfo() routines now return a boolean, set if the requested report item was located in the * current report. If sending a report to a multi-report device, the first byte of the report is automatically * set to the report ID of the given report item. * - Calling USB_Init() now forces a complete USB interface reset and enumeration, even if the USB interface is * currently initialized. * * * \section Sec_Migration152 Migrating from V1.5.2 to V1.5.3 * * <b>Library Demos</b> * - Previously, all demos contained a serial number string descriptor, filled with all zeros. A serial number * string is required in Mass Storage devices, or devices which are to retain settings when moved between * ports on a machine. As people were not changing the serial number value, this was causing conflicts and so * the serial number descriptor has been removed from all but the Mass Storage demo, which requires it. * - The AudioOut and AudioIn demos did not previously silence their endpoints when the host has deactivated * them. Projects built upon either demo should upgrade to the latest code. * - The FEATURE_ENDPOINT macro has been renamed FEATURE_ENDPOINT_HALT, and is now correctly documented. * - The MassStoreHost demo contained errors which caused it to lock up randomly on certain devices. Projects built * on the MassStoreDemo code should update to the latest version. * - The Interrupt type endpoint in the CDC based demos previously had a polling interval of 0x02, which caused * problems on some Linux systems. This has been changed to 0xFF, projects built on the CDC demos should upgrade * to the latest code. * - The HID keyboard and mouse demos were not previously boot mode compatible. To enable boot mode support, projects * built on the keyboard or mouse demos (or derivatives) should upgrade to the latest code. * - The Mass Storage demo was not previously standards compliant. Projects built on the Mass Storage demo should * upgrade to the latest code. * - The USART was not being reconfigured after the host sent new encoding settings in the USBtoSerial demo. This was * previously discovered and fixed, but the change was lost. Projects built on the USBtoSerial demo should update * to the latest code. * * <b>Device Mode</b> * - The endpoint non-control stream functions now have a default timeout of 50ms between packets in the stream. * If this timeout is exceeded, the function returns the new ENDPOINT_RWSTREAM_ERROR_Timeout error value. The * timeout value can be overridden by defining the USB_STREAM_TIMEOUT_MS in the project makefile to the desired * timeout duration in ms. * - Rather than returning fixed values, the flags indicating if the device has Remote Wakeup currently enabled * and/or is self-powered are now accessed and set through the new USB_RemoteWakeupEnabled and * USB_CurrentlySelfPowered macros. See the DevChapter9.h documentation for more details. * - All endpoint stream functions now require an extra Callback function parameter. Existing code may be updated * to either supply NO_STREAM_CALLBACK as the extra parameter, or disable stream callbacks altogether by pasing * the token NO_STREAM_CALLBACKS to the compiler using the -D switch. * * <b>Host Mode</b> * - The pipe non-control stream functions now have a default timeout of 50ms between packets in the stream. * If this timeout is exceeded, the function returns the new PIPE_RWSTREAM_ERROR_Timeout error value. The * timeout value can be overridden by defining the USB_STREAM_TIMEOUT_MS in the project makefile to the desired * timeout duration in ms. * - CollectionPath_t has been renamed to HID_CollectionPath_t to be more in line with the other HID parser structures. * - All pipe stream functions now require an extra Callback function parameter. Existing code may be updated * to either supply NO_STREAM_CALLBACK as the extra parameter, or disable stream callbacks altogether by pasing * the token NO_STREAM_CALLBACKS to the compiler using the -D switch. * * * \section Sec_Migration151 Migrating from V1.5.1 to V1.5.2 * * <b>Library Demos</b> * - The RNDIS demo application has been updated so that it is functional on Linux under earlier implementations * of the RNDIS specification, which had non-standard behaviour. Projects built upon the demo should upgrade * to the latest code. * - The DFU class bootloader has had several bugs corrected in this release. It is recommended that where * possible any existing devices upgrade to the latest bootloader code. * * * \section Sec_Migration150 Migrating from V1.5.0 to V1.5.1 * * <b>Library Demos</b> * - The USBtoSerial demo was broken in the 1.5.0 release, due to incorrect register polling in place of the * global "Transmitting" flag. The change has been reverted in this release. Projects built upon the demo * should upgrade to the latest code. * - The HID class demos did not implement the mandatory GetReport HID class request. Projects built upon the HID * demos should upgrade to the latest code. * - The HID class demos incorrectly reported themselves as boot-protocol enabled HID devices in their descriptors. * Projects built upon the HID demos should upgrade to the latest code. * - The MIDI device demo had incorrect AudioStreaming interface descriptors. Projects built upon the MIDI demo * should upgrade to the latest code. * - The AudioOut demo did not correctly tristate the speaker pins when USB was disconnected, wasting power. * Projects built upon the AudioOut demo should upgrade to the latest code. * * * \section Sec_Migration141 Migrating from V1.4.1 to V1.5.0 * * <b>Library Demos</b> * - Previous versions of the library demos had incorrectly encoded BCD version numbers in the descriptors. To * avoid such mistakes in the future, the VERSION_BCD macro has been added to StdDescriptors.h. Existing * projects should at least manually correct the BCD version numbers, or preferably update the descriptors to * encode the version number in BCD format using the new macro. * - The mandatory GetReport class-specific request was accidentally ommitted from previous versions of the demos * based on the Human Interface Device (HID) class. This has been corrected, and any user projects based on the * HID demos should also be updated accordingly. * - The CDC demos now correctly send an empty packet directly after a full packet, to end the transmission. * Failure to do this on projects which always or frequently send full packets will cause buffering issues on * the host OS. All CDC user projects are advised to update their transmission routines in the same manner as * the library CDC demos. * - The previous interrupt-driven Endpoint/Pipe demos did not properly save and restore the currently selected * Endpoint/Pipe when the ISR fired. This has been corrected - user projects based on the interrupt driven * demos should also update to properly save and restore the selected Endpoint/Pipe. * * <b>Non-USB Library Components</b> * - The Atomic.h and ISRMacro.h header files in MyUSB/Common have been removed, as the library is now only * compatible with avr-libc library versions newer than the time before the functionality of the deleted * headers was available. * * <b>Device Mode</b> * - The GetDescriptor function (see StdDescriptors.h) now has a new prototype, with altered parameter names and * functions. Existing projects will need to update the GetDescriptor implementation to reflect the new API. * The previously split Type and Index parameters are now passed as the original wValue parameter to the * function, to make way for the USB specification wIndex parameter which is <i>not</i> the same as the * previous Index parameter. * - The USB_UnhandledControlPacket event (see Events.h) now has new parameter names, to be in line with the * official USB specification. Existing code will need to be altered to use the new parameter names. * - The USB_CreateEndpoints event (see Events.h) has been renamed to USB_ConfigurationChanged, which is more * appropriate. It fires in an identical manner to the previously named event, thus the only change to be made * is the event name itself in the user project. * - The USB_Descriptor_Language_t structure no longer exists in StdDescriptors.h, as this was a * psudo-descriptor modelled on the string descriptor. It is replaced by the true USB_Descriptor_String_t type * descriptor as indicated in the USB specification, thus all device code must be updated accordingly. * - The names of several Endpoint macros have been changed to be more consistant with the rest of the library, * with no implementation changes. This means that existing code can be altered to use the new macro names * with no other considerations required. See Endpoint.h for the new macro names. * - The previous version of the MassStorage demo had an incorrect value in the SCSI_Request_Sense_Response_t * strucuture named SenseData in SCSI.c which caused some problems with some hosts. User projects based on this * demo should correct the structure value to maintain compatibility across multiple OS platforms. * - By default, the descriptor structures use the official USB specification names for the elements. Previous * versions of the library used non-standard (but more verbose) names, which are still usable in the current * and future releases when the correct compile time option is enabled. See the StdDescriptors.h file * documentation for more details. * * <b>Host Mode</b> * - The USB_Host_Request_Header_t structure in HostChapter9.h (used for issuing control requests) has had its * members renamed to the official USB specification names for requests. Existing code will need to be updated * to use the new names. * - The names of several Pipe macros have been changed to be more consistant with the rest of the library, * with no implementation changes. This means that existing code can be altered to use the new macro names * with no other considerations required. See Pipe.h for the new macro names. * - By default, the descriptor structures use the official USB specification names for the elements. Previous * versions of the library used non-standard (but more verbose) names, which are still usable in the current * and future releases when the correct compile time option is enabled. See the StdDescriptors.h file * documentation for more details. * - The names of the macros in Host.h for controlling the SOF generation have been renamed, see the Host.h * module documentation for the new macro names. * * <b>Dual Role Mode</b> * - The OTG.h header file has been corrected so that the macros now perform their stated functions. Any existing * projects using custom headers to fix the broken OTG header should now be altered to once again use the OTG * header inside the library. * - The USB_DeviceEnumerationComplete event (see Events.h) now also fires in Device mode, when the host has * finished enumerating the device. Projects relying on the event only firing in Host mode should be updated * so that the event action only ocurrs when the USB_Mode global is set to USB_MODE_HOST. */Download Driver Pack
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