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CHANGELOG.md

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Changelog

v1.2.1

  • Bug fixes
    • Fixed incorrect edge notifications when registering for only rising or falling interrupts. Thanks to jsimmons2 for this fix.

v1.2.0

  • New features

    • Add GPIO.pin/1 to get the pin number back. Thanks to @jjcarstens
    • Add child_specs/1 to support creating GPIOs in supervisors

  • Improvements

    • Various spec improvements

v1.1.0

This release will work with Elixir 1.7. Support for Elixir versions before 1.6 has been dropped.

  • Improvements
    • Add :start_value to initialize a GPIO. Thanks to @jjcarstens for this feature.

v1.0.3

  • Bug fixes
    • Remove catchall receive handlers that would capture GenServer.call messages when functions were called by multiple threads
    • Timeout all port calls just in case. This hasn't been observed to my knowledge, but seems like a sensable precaution. The timeout is absurdly long (500 ms) so it shouldn't trigger.
    • Pass errors detected by C code to Elixir rather than crashing

v1.0.2

  • Bug fixes

    • Fix memory overrun when using large I2C transfers. This only affected a few devices since most devices maxed out at much smaller sizes. Also add compile-time check to prevent this from happening again.

  • Improvements

    • Increase max SPI transfer size to 4096. This aligns it with py-spidev and enables communication with the Unicorn Hat HD.

v1.0.1

  • Bug fixes

    • Fixed typespec for set_int/2. Thanks to tmecklem for catching the ommission.

  • Improvements

    • Various documentation and code formatting updates

v1.0.0

  • Same as v0.7.0.

v0.7.0

  • New features
    • Added and improved helper functions for finding I2C devices and I2C and SPI buses.

v0.6.2

  • Bug fixes
    • Fix message buffer size that was too small for really large I2C transfers
    • Many documentation improvements from Axel Clark.

v0.6.1

  • Bug fixes
    • Enlarge I2C buffer size to support some OLED displays
    • Support compilation on non-Linux platforms. It won't work, but this makes it possible to have unconditional deps on elixir_ale in projects.

v0.6.0

Backwards incompatible changes

This release cleans up the naming of every module. All modules are now in the ElixirALE namespace and capitalized since they're acronyms. For example, if you were using the I2c module, it's now ElixirALE.I2C. You may want to alias ElixirALE.I2C.

v0.5.7

  • Bug fixes
    • Clean up warnings especially the Elixir 1.4 bare function ones

v0.5.6

  • Bug fixes
    • I2C transfers may now be up to 512 bytes. Thanks to bendiken for this fix. See #21.

v0.5.5

  • New features

    • true and false can now be passed to Gpio.write/2

  • Bug fixes

    • Include i2c-dev.h to avoid incompatible version on Raspbian 8. This also avoids errors on systems that don't have the header file for whatever reason.
    • Include asm/ioctl.h for a MIPS platform that doesn't include it automatically.

v0.5.4

  • Bump version of elixir_make to workaround OTP 19 ports issue

v0.5.3

  • Use elixir_make instead of custom mix task

v0.5.2

  • Fix typo in v0.5.1

v0.5.1

  • Bug fixes
    • Fixed race condition when calling Gpio.read/1 with interrupts enabled

v0.5.0

  • New features
    • Add I2c.detect_devices/1 to scan the I2C bus
    • Add I2c.read_device/3, etc. to support devices on more than one I2C address without needing to create multiple I2c servers

v0.4.1

  • Bug fixes
    • Previous fix for priv directory in v0.4.0 was insufficient. This release has what is believe to be the correct fix.

v0.4.0

  • Bug fixes
    • Fix issue where priv directory symlink wasn't created with mix
    • Add support for retries when bringing up GPIO interfaces. This should be a permanent fix for the export/open race condition on Raspberry Pi 2s.

v0.3.0

  • New features
    • Use I2C RDWR ioctl so that write/read combinations are atomic. See I2c.write_read/3.

v0.2.0

Initial release to hex.