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# Release Notes for STM32F105/7xx, STM32F2xx and STM32F4xx USB Host Library Copyright 2012 STMicroelectronics
## Contents Update History License ## Update History ### V2.1.0 / 19-March-2012 Main Changes Official support of STM32F4xx devices All source files: license disclaimer text update and add link to the License file on ST Internet Add ISR structure to link the low level driver to the Host library Change length parameter in the I/O operations to handle large amount of data Enhance the configuration descriptor parsing method to take into account multi interface devices HID class Remove blocking even frame synchronization loop MSC class Handle correctly the BOT transfer with length < max length Handle multi sector length data in the FAT FS interface Miscellaneous bug fix ### V2.0.0 / 22-July-2011 Main Changes Second official version supporting STM32F105/7 and STM32F2xx devices Add support for STM32F2xx devices Add multi interface feature Add dynamic configuration parsing Add USBH_DeAllocate_AllChannel function in the Host channel management layer to clean up channels allocation table when de-initializing the library Change the core layer to stop correctly the host core and free all allocated channels Add usbh_conf.h file in the application layer to customize some user parameters ### V1.0.0 - 11/29/2010 Created ## License Licensed under MCD-ST Liberty SW License Agreement V2, (the "License"); You may not use this package except in compliance with the License. You may obtain a copy of the License at: http://www.st.com/software_license_agreement_liberty_v2 Unless required by applicable law or agreed to in writing, software distributed under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the License for the specific language governing permissions and limitations under the License. For complete documentation on STM32 Microcontrollers visit www.st.com/STM32