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# Release Notes for CS43L22 Component Driver Copyright 2014 STMicroelectronics
## Update History ### V2.0.3 / 05-October-2017 Main Changes cs43l22.c/.h: Update VOLUME_CONVERT macro to return 255 if the input volume is greater than 100. Update cs43l22_SetVolume API to check on convertedvol instead of Volume ### V2.0.2 / 02-October-2015 Main Changes cs43l22.c/.h: Move VOLUME_CONVERT macro from cs43l22.h to cs43l22.c as internally used to convert volume. Add literals instead of magic number for cs34l22 registers. ### V2.0.1 / 16-September-2015 Main Changes cs43l22.c: Enable the digital soft ramp to avoid clac noise. Improve mute/unmute by muting/unmuting also the DAC inputs. ### V2.0.0 / 24-June-2015 Main Changes cs43l22.h/.c: Add codec de-initialization function: cs43l22_DeInit() Add Audio IO de-initialization function prototype: AUDIO_IO_DeInit() NOTE: This release must be used with BSP Common driver V4.0.0 or later ### V1.1.0 / 10-February-2015 Main Changes cs43l22.h/.c: Add AUDIO_FREQUENCY_xxx defines for frequencies capabilities (8K to 192K) Add codec reset function: cs43l22_Reset() ### V1.0.1 / 02-December-2014 Main Changes cs43l22.h: change "\" by "/" in the include path to fix compilation issue under Linux ### V1.0.0 / 18-February-2014 Main Changes First official release of CS43L22 audio codec ## License Redistribution and use in source and binary forms, with or without modification, are permitted provided that the following conditions are met: Redistributions of source code must retain the above copyright notice, this list of conditions and the following disclaimer. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following disclaimer in the documentation and/or other materials provided with the distribution. Neither the name of STMicroelectronics nor the names of its contributors may be used to endorse or promote products derived from this software without specific prior written permission. THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. For complete documentation on STM32 Microcontrollers visit www.st.com/STM32