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CHANGELOG.md

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  • v2.4.3 - 03/02/2025

    • Bump c-periphery dependency version to v2.4.3 for build fix of character device GPIO support tests with alternate shells and older versions of make.
    • Improve standalone install in Makefile.
    • Contributors
      • Francois Perrad, @fperrad - 9a9519c, 1c0804e

  • v2.4.2 - 07/05/2023

    • Bump c-periphery dependency version to v2.4.2 for build fix of GPIO under Linux kernel headers missing realtime event timestamp support in the gpio-cdev v2 ABI.

  • v2.4.1 - 04/21/2023

    • Bump c-periphery dependency version to v2.4.1 for fix of realtime timestamp reporting for line events in gpio-cdev v2 implementation.

  • v2.4.0 - 03/31/2023

    • Bump c-periphery dependency version to v2.4.0 for gpio-cdev v2 ABI support in character device GPIOs.

  • v2.3.1 - 01/05/2021

    • Bump c-periphery dependency version to v2.3.1 for build fix of SPI under Linux kernel headers without 32-bit SPI mode flags support.

  • v2.3.0 - 12/16/2020

    • Bump c-periphery dependency version to v2.3.0 for new advanced open function in MMIO module, for 32-bit extra flags support in SPI module, and minor build improvements.
    • MMIO
      • Add path property to table constructor for use with alternate memory character devices (e.g. /dev/gpiomem).
    • SPI
      • Add support for 32-bit flags to extra_flags property and table constructor.
    • Update missing error codes in documentation for I2C, MMIO, Serial, and SPI modules.

  • v2.2.5 - 11/19/2020

    • Bump c-periphery dependency version to v2.2.5 for additional direction checks in GPIO module, improved string handling in LED and GPIO modules, and default optimization added to CFLAGS in Makefile.

  • v2.2.4 - 09/11/2020

    • Bump c-periphery dependency version to v2.2.3 for build fix of GPIO under older Linux kernel headers missing line event support in the gpio-cdev ABI, and to fix bits per word truncation in SPI handle string representation.
    • Bump c-periphery dependency version to v2.2.4 for fix of future spurious closes after an error during open in MMIO, Serial, SPI, I2C, and GPIO modules.
    • Enable build with Lua 5.4.
    • Contributors
      • Frédéric Vergez, @ikarius - ae2b61c

  • v2.2.2 - 07/28/2020

    • Bump c-periphery dependency version to v2.2.2 for conditional compilation of character device GPIO support to allow build under older Linux kernel headers, and to fix missing definition warnings.

  • v2.2.1 - 05/31/2020

    • Bump c-periphery dependency version to v2.2.1 for build fix with uClibc and argument name fix in GPIO module.

  • v2.2.0 - 05/29/2020

    • Bump c-periphery dependency version to v2.2.0 for new GPIO and Serial module APIs, fixes, and improvements.
    • GPIO
      • Make timeout_ms argument optional for poll() and default to blocking poll.
      • Add poll_multiple() static method.
      • Add line consumer label property.
      • Add line bias, line drive, and inverted properties.
      • Add additional properties to table constructor for character device GPIOs.
      • Improve wording in documentation.
    • Serial
      • Make timeout_ms argument optional for poll() and default to blocking poll.
      • Add vmin and vtime properties for the corresponding termios settings.
      • Add description of termios timeout behavior with read() to documentation.
      • Improve wording and fix typos in documentation.

  • v2.1.0 - 01/07/2020

    • Bump c-periphery dependency version to v2.1.0 for new LED and PWM modules.
    • Add LED module.
    • Add PWM module.
    • Fix synopsis, examples, and read_event() description in GPIO module documentation.

  • v2.0.1 - 10/08/2019

    • Bump c-periphery dependency version to v2.0.1 for character device GPIO support, to fix blocking read performance in Serial, and for error detection of unexpected empty read in Serial module.
    • Add support for character device GPIOs to the GPIO module.
      • Remove support for preserve direction from GPIO constructor.
      • Update error codes.
    • Simplify error codes for MMIO, I2C, and Serial modules.
    • Remove duplicated package version from all modules.
    • Update tests with running hints for Raspberry Pi 3.
    • Improve cross-compilation support in Makefile.

  • v1.1.3 - 04/28/2018

    • Bump c-periphery dependency version to v1.1.3 to fix data's most significant bit getting stripped when opening a serial port with parity enabled.

  • v1.1.2 - 04/01/2018

    • Bump c-periphery dependency version to v1.1.2 to add handling for delayed pin directory export on some platforms when opening a GPIO.

  • v1.1.1 - 04/25/2017

    • Fix multiple reads in I2C transfer.
    • Bump c-periphery dependency version to v1.1.1 to fix blocking GPIO poll for some platforms.
    • Contributors
      • Wojciech Nizinski, @niziak - 2d39685

  • v1.1.0 - 09/29/2016

    • Add support for preserving pin direction to GPIO open.
    • Fix build issues caused by make flags propagating to c-periphery.
    • Bump c-periphery dependency version for serial-related and build fixes.
    • Contributors
      • gw0 - cc17642

  • v1.0.6 - 07/30/2015

    • Fix struct timespec/nanosleep() related compilation error on older versions of gcc/glibc.

  • v1.0.5 - 04/08/2015

    • Bump c-periphery dependency version for serial-related portability fixes.
    • Add support for Lua 5.3.

  • v1.0.4 - 01/29/2015

    • Fix I2C_M_STOP undeclared compilation error on kernel versions older than 3.6.

  • v1.0.3 - 12/26/2014

    • Improve LuaRocks build process.
    • Make unit tests compatible with Lua 5.1
    • Minor documentation fixes.

  • v1.0.2 - 05/30/2014

    • Add support for Lua 5.1.

  • v1.0.1 - 05/16/2014

    • Change GPIO poll return type from integer to boolean.
    • Clean up docs.

  • v1.0.0 - 05/15/2014

    • Initial release.