Change Log
==========

0.7.1a3
-------
Fix PyEval_InitThreads deprecation warning for Python 3.9 (issue 188)

0.7.1a2
-------
Fix build using GCC 10 (issue 187)

0.7.1a1
-------
- Fix docstrings to not include licence
- Remove Debian/Raspbian stretch packaging support
- Use setuptools instead of distutils

0.7.0
-----
- Updated RPI_INFO to include RPi 4B
- Fixed pull up/down for Pi4 (issue 168)
- Fix spelling mistake in docstrings
- Tested and working on Raspbian Buster + Python 3.8.0b2
- Fix board detection for aarch64 (Issues 161 / 165)
- Fix checking mmap return value in c_gpio.c (issue 166)

0.6.5
-----
- Fix exception on re-export of /sys/class/gpio/gpioNN

0.6.4
-----
- Event cleanup bug (issue 145)
- Raise exception for duplicate PWM objects (issue 54 - Thijs Schreijer <thijs@thijsschreijer.nl>)
- Fix build warnings (Issue 146 - Dominik George) 
- test.py runs unchanged for both python 2+3
- Soft PWM stops running fix (Issues 94, 111, 154)
- Soft PWM segfault fix (Luke Allen pull request)

0.6.3
-----
- Fix code so it builds under PyPy (Gasper Zejn)
- os.system breaks event detection - Matt Kimball (issue 127)

0.6.2
-----
- Rewrote Debian packaging mechanism
- RPI_INFO reports Pi 3
- Changed module layout - moved C components to RPi._GPIO

0.6.1
-----
- Update RPI_INFO to detect more board types
- Issue 118 - add_event_detect sometimes gives runtime error with unpriv user 
- Issue 120 - setmode() remembers invalid mode

0.6.0a3
-------
- Now uses /dev/gpiomem if available to avoid being run as root
- Fix warnings with pull up/down on pins 3/5
- Correct base address on Pi 2 when devicetree is disabled
- caddr_t error on compile (Issue 109)
- Error on invalid parameters to setup() (issue 93)
- Add timeout parameter to wait_for_edge() (issue 91)

0.5.11
------
- Fix - pins > 26 missing when using BOARD mode
- Add getmode()
- Raise exception when a mix of modes is used
- GPIO.cleanaup() unsets the current pin mode

0.5.10
------
- Issue 95 - support RPi 2 boards
- Introduce RPI_INFO
- Deprecate RPI_REVISION
- Issue 97 - fixed docstring for setup()

0.5.9
-----
- Issue 87 - warn about pull up/down on i2c pins
- Issue 86/75 - wait_for_edge() bugfix
- Issue 84 - recognise RPi properly when using a custom kernel
- Issue 90 - cleanup() on a list/tuple of channels

0.5.8
-----
- Allow lists/tuples of channels in GPIO.setup()
- GPIO.output() now allows lists/tuples of values
- GPIO.wait_for_edge() bug fixes (issue 78)

0.5.7
-----
- Issue 67 - speed up repeated calls to GPIO.wait_for_event()
- Added bouncetime keyword to GPIO.wait_for_event()
- Added extra edge/interrupt unit tests
- GPIO.wait_for_event() can now be mixed with GPIO.add_event_detect()
- Improved cleanups of events
- Issue 69 resolved

0.5.6
-----
- Issue 68 - support for RPi Model B+
- Fix gpio_function()

0.5.5
-----
- Issue 52 - 'unallocate' a channel
- Issue 35 - use switchbounce with GPIO.event_detected()
- Refactored events code
- Rewrote tests to use unittest mechanism and new test board with loopbacks
- Fixed adding events after a GPIO.cleanup()
- Issue 64 - misleading /dev/mem permissions error
- Issue 59 - name collision with PWM constant and class

0.5.4
-----
- Changed release status (from alpha to full release)
- Warn when GPIO.cleanup() used with nothing to clean up (issue 44)
- Avoid collisions in constants (e.g. HIGH / RISING / PUD_DOWN)
- Accept BOARD numbers in gpio_function (issue 34)
- More return values for gpio_function (INPUT, OUTPUT, SPI, I2C, PWM, SERIAL, UNKNOWN)
- Tidy up docstrings
- Fix /dev/mem access error with gpio_function

0.5.3a
------
- Allow pydoc for non-root users (issue 27)
- Fix add_event_detect error when run as daemon (issue 32)
- Simplified exception types
- Changed from distribute to pip

0.5.2a
------
- Added software PWM (experimental)
- Added switch bounce handling to event callbacks
- Added channel number parameter to event callbacks (issue 31)
- Internal refactoring and code tidy up

0.5.1a
------
- Fixed callbacks for multiple GPIOs (issue 28)

0.5.0a
------
- Added new edge detection events (interrupt handling)
  - Added add_event_detect()
  - Added remove_event_detect()
  - Added add_event_callback()
  - Added wait_for_edge()
- Removed old experimental event functions
  - Removed set_rising_event()
  - Removed set_falling_event()
  - Removed set_high_event()
  - Removed set_low_event()
- Changed event_detected() for new edge detection functionality
- input() now returns 0/LOW == False or 1/HIGH == True (integers) instead of False or True (booleans).
- Fix error on repeated import (issue 3)
- Change SetupException to a RuntimeError so it can be caught on import (issue 25, Chris Hager <chris@linuxuser.at>)
- Improved docstrings of functions

0.4.2a
------
- Fix for installing on Arch Linux (Python 3.3) (issue 20)
- Initial value when setting a channel as an output (issue 19)

0.4.1a
------
- Added VERSION
- Permit input() of channels set as outputs (Eric Ptak <trouch@trouch.com>)

0.4.0a
------
- Added support for Revision 2 boards
- Added RPI_REVISION
- Added cleanup() function and removed automatic reset functionality on program exit
- Added get_function() to read existing GPIO channel functionality (suggestion from Eric Ptak <trouch@trouch.com>)
- Added set_rising_event()
- Added set_falling_event()
- Added set_high_event()
- Added set_low_event()
- Added event_detected()
- Added test/test.py
- Converted debian to armhf
- Fixed C function short_wait() (thanks to Thibault Porteboeuf <thibaultporteboeuf@gmail.com>)

0.3.1a
------
- Fixed critical bug with swapped high/low state on outputs
- Added pull-up / pull-down setup functionality for inputs

0.3.0a
------
- Rewritten as a C extension
- Now uses /dev/mem and SoC registers instead of /sys/class/gpio
- Faster!
- Make call to GPIO.setmode() mandatory
- Added GPIO.HIGH and GPIO.LOW constants

0.2.0
-----
- Changed status from alpha to beta
- Added setmode() to be able to use BCM GPIO 00.nn channel numbers
- Renamed InvalidPinException to InvalidChannelException

0.1.0
------
- Fixed direction bug
- Added MANIFEST.in (to include missing file)
- Changed GPIO channel number to pin number
- Tested and working!

0.0.3a
------
- Added GPIO table
- Refactored
- Fixed a few critical bugs
- Still completely untested!

0.0.2a
------
- Internal refactoring.  Still completely untested!

0.0.1a
------
- First version.  Completely untested until I can get hold of a Raspberry Pi!

