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c-periphery/CHANGELOG.md
Vanya A. Sergeev 28bff148f2 changelog: update with v2.5.0
2025-11-02 02:55:20 -06:00

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  • v2.5.0 - 11/02/2025

    • MMIO
      • Add read64() and write64() APIs.
    • SPI
      • Add spi_transfer_advanced() API for transferring multiple messages, with optional deselect between messages, deselect delay, and word delay.
    • GPIO
      • Add open configuration, getters, and setters for event clock.
      • Add open configuration, getters, and setters for debounce period.
    • LED
      • Add getter and setter for trigger.
      • Add led_get_triggers_entry() and led_get_triggers_count() APIs for querying triggers list.
    • Build
      • Add shared library target to Makefile.
      • Use . for shared library SONAME under CMake.

  • v2.4.3 - 02/28/2025

    • Fix memory safety with some older strerror_r() implementations in error formatters for all modules.
    • Build
      • Fix character device GPIO support tests in Makefile for alternate shells and older versions of make.
      • Fix cross-compilation in Makefile from Windows.
      • Fix CMake minimum required version.
      • Add CMake package generation.
    • Contributors

  • v2.4.2 - 07/05/2023

    • GPIO
      • Fix building under Linux kernel headers missing realtime event timestamp support in the gpio-cdev v2 ABI.

  • v2.4.1 - 04/21/2023

    • GPIO
      • Fix realtime timestamp reporting for line events in gpio-cdev v2 implementation.

  • v2.4.0 - 03/31/2023

    • GPIO
      • Add support for gpio-cdev v2 ABI.

  • v2.3.1 - 01/05/2021

    • SPI
      • Fix compilation error and unused variable/parameter warnings when building under Linux kernel headers without 32-bit SPI mode flags support.
    • Contributors

  • v2.3.0 - 12/16/2020

    • MMIO
      • Add advanced open function with device path for use with alternate memory character devices (e.g. /dev/gpiomem).
    • SPI
      • Add getter and setter for 32-bit extra flags.
      • Add advanced open function with 32-bit extra flags.
    • Build
      • Enable unused parameter warning.
    • Contributors
      • Rémy Dziemiaszko, @remdzi - b8adb42

  • v2.2.5 - 11/19/2020

    • GPIO
      • Add direction checks for improved error reporting to gpio_write(), gpio_read_event(), and gpio_poll() for character device GPIOs.
      • Improve string handling in gpio_open() and in getters for sysfs and character device GPIOs.
    • LED
      • Improve string handling in led_open() and led_name().
    • Build
      • Add default optimization to CFLAGS in Makefile.
      • Add debug and release CFLAGS to CMakeLists.txt.

  • v2.2.4 - 09/11/2020

    • Fix future spurious close caused by uncleared handle state after an error during open in GPIO, I2C, SPI, Serial, and MMIO modules.

  • v2.2.3 - 09/03/2020

    • GPIO
      • Disable character device GPIO support when building with older Linux kernel headers missing line event support in the gpio-cdev ABI.
    • SPI
      • Fix formatted bits per word truncation in spi_tostring().
    • Build
      • Add test for character device GPIO support in Linux kernel headers to Makefile.
    • Contributors
      • Fabrice Fontaine, @ffontaine - 5b81b89

  • v2.2.2 - 07/24/2020

    • GPIO
      • Add conditional compilation of character device GPIO support to allow build under older Linux kernel headers.
      • Increase feature test macro version to fix missing definition warnings.
    • Build
      • Fix directory paths for pkg-config pc file generation and installation under CMake.
      • Fix COMMIT_ID identification when building within a parent git repository under CMake.
      • Add CMake build option for tests.
    • Contributors

  • v2.2.1 - 05/31/2020

    • GPIO
      • Add feature test macro for POLLRDNORM flag to fix build with uClibc.
      • Fix argument name in prototype for gpio_set_bias().
    • Contributors
      • Joris Offouga, @jorisoffouga - cfc722e

  • v2.2.0 - 05/29/2020

    • GPIO
      • Add gpio_poll_multiple() function.
      • Add getter for line consumer label.
      • Add getters and setters for line bias, line drive, and inverted properties.
      • Add advanced open functions with additional properties for character device GPIOs.
      • Only unexport GPIO in gpio_close() if exported in gpio_open_sysfs() for sysfs GPIOs.
      • Add retry loop to direction write after export to accommodate delayed udev permission rule application in gpio_open_sysfs() for sysfs GPIOs.
      • Improve wording and fix typos in documentation.
    • Serial
      • Add getters and setters for vmin and vtime termios settings.
      • Add support for termios timeout with serial_read().
      • Improve wording in documentation.
    • Build
      • Add CMake build support.
      • Add pkg-config pc file generation.
    • Contributors

  • v2.1.0 - 01/07/2020

    • Add LED module.
    • Add PWM module.
    • Clean up internal string handling in SPI and GPIO modules.

  • v2.0.1 - 10/08/2019

    • Initialize handle state in new functions of all modules.
    • Fix performance of blocking read in serial_read().
    • Return error on unexpected empty read in serial_read(), which may be caused by a serial port disconnect.
    • Improve formatting of spi_tostring().
    • Fix typo in GPIO module documentation.
    • Fix cross-compilation support in Makefile to allow override of CC variable.

  • v2.0.0 - 09/30/2019

    • Add support for character device GPIOs (gpio-cdev) to the GPIO module.
      • Remove support for preserve direction in gpio_open().
      • Remove problematic dummy read with sysfs GPIOs from gpio_poll().
      • Unexport sysfs GPIOs in gpio_close().
    • Migrate to opaque handles with new/free functions in all modules.
    • Simplify error codes for MMIO, I2C, and Serial modules.
    • Fix typos in GPIO module documentation.
    • Update tests with running hints for Raspberry Pi 3.
    • Improve cross-compilation support in Makefile.
    • Contributors

  • v1.1.3 - 04/28/2018

    • Fix data's most significant bit getting stripped when opening a serial port with parity enabled in serial_open_advanced().
    • Contributors
      • Ryan Barnett, @rjbarnet - 537eeac

  • v1.1.2 - 04/01/2018

    • Add handling for delayed pin directory export on some platforms in gpio_open().
    • Fix supported functions query for 64-bit in i2c_open().
    • Add support for building with C++.
    • Contributors

  • v1.1.1 - 04/25/2017

    • Fix blocking gpio_poll() for some platforms.
    • Add library version macros and functions.
    • Contributors
      • Михаил Корнилов, @iTiky - 0643fe9

  • v1.1.0 - 09/27/2016

    • Add support for preserving pin direction to gpio_open().
    • Fix enabling input parity check in serial_set_parity().
    • Fix enabling hardware flow control in serial_set_rtscts().
    • Include missing header to fix build with musl libc.
    • Omit unsupported serial baudrates to fix build on SPARC.
    • Contributors

  • v1.0.3 - 05/25/2015

    • Fix portability of serial baud rate set/get with termios-provided baud rate functions.
    • Fix unlikely bug in spi_tostring() formatting.
    • Clean up integer argument signedness in serial API.

  • v1.0.2 - 01/31/2015

    • Fix gpio_supports_interrupts() so it does not return an error if interrupts are not supported.
    • Fix errno preservation in a few error paths, mostly in the open functions.

  • v1.0.1 - 12/26/2014

    • Improve Makefile.
    • Fix _BSD_SOURCE compilation warnings.

  • v1.0.0 - 05/15/2014

    • Initial release.
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