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CHANGELOG.md

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Changelog

Notable changes to the smbus2 project are recorded here.

Unreleased

  • SonarCloud quality checks

0.4.0 - 2020-12-05

Added

  • Support for SMBus PEC (Packet Error Checking).
  • Support for Python 3 type hinting and mypy static type analysis. Type stubs added to the project.

Removed

As of this version the SMBusWrapper class is removed and must be replaced with SMBus:

# No longer valid!
with SMBusWrapper(1) as bus:
    ...

# Replace with
with SMBus(1) as bus:
    ...

General

  • Added Python 3.8 and 3.9 to Travis-CI build config.
  • Cleaner docs:
    • Removed redundant README.rst.
    • README.md, CHANGELOG.md and LICENSE added to dist package.

0.3.0 - 2019-09-07

Added

  • Missing SMBus commands added: process_call, write_block_data, read_block_data, block_process_call. Note that the latter two are normally not supported by pure i2c-devices.
  • SMBus.init(), SMBus.open(): bus can be a file path as well (issue #17).
  • Added enter/exit handler to SMBus class.
  • Expose enumeration of i2c funcs. Previously, smbus.funcs was defined, but its flags were not exported. All flags moved into the I2cFunc class and exported that.
  • Added convenience features making the i2c_msg class easier to work with.

Deprecation warning

  • The SMBusWrapper class is now considered deprecated. Please replace with SMBus.

Changed

  • Removed __slots__ from i2c_msg class.
  • Whole i2c_msg_iter class replaced by a simple generator function with same functionality

0.2.3 - 2019-01-10

Fixed

  • Incorrect i2c_msg created in Python 3.x if str input contains ascii chars >= 128.

0.2.2 - 2019-01-03

Added

  • SMBus write_quick command.

0.2.1 - 2018-06-02

Added

  • Ability to force individual r/w operations.
  • API docs available on readthedocs.org.

0.2.0 - 2017-08-19

Added

  • I2C: Support for i2c_rdwr transactions.

0.1.5 - 2017-05-17

Added

  • SMBus support for read and write single bytes without offset/register address.

0.1.4 - 2016-09-18

Added

  • Force option for SMBusWrapper class.

0.1.3 - 2016-08-14

Added

  • Flag flag for forcing address use even when a driver is already using it.

Fixed bugs

  • Accept zero (0) as bus ID.
  • Save address when setting it.

0.1.2 - 2016-04-19

First published version.