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evdev

evdev provides bindings to the generic input event interface in Linux. The evdev interface serves the purpose of passing events generated in the kernel directly to userspace through character devices that are typically located in /dev/input/.

evdev also comes with bindings to uinput, the userspace input subsystem. Uinput allows userspace programs to create and handle input devices from which input events can be directly injected into the input subsystem.

Documentation:
devel http://gvalkov.github.com/python-evdev
stable http://packages.python.org/evdev
Development:
https://github.com/gvalkov/python-evdev
PyPi:
http://pypi.python.org/pypi/evdev

Changelog

Development

Enhancements:

  • Add FF_* and FF_STATUS codes to ecodes (thanks bgilbert).

  • Reverse event code mappings (ecodes.{KEY,FF,REL,ABS} and etc.) will now map to a list of codes, whenever a value corresponds to multiple codes:

    >>> ecodes.KEY[152]
... ['KEY_COFFEE', 'KEY_SCREENLOCK']
>>> ecodes.KEY[30]
... 'KEY_A'
Fixes:
  • Fix segfault in device_read_many() (thanks bgilbert).

0.3.3 (May 29, 2013)

Fixes:
  • Raise IOError from device_read() and device_read_many() when read() fails.
  • Several stability and style changes (thank you debian code reviewers).

0.3.2 (Apr 05, 2013)

Fixes:
  • Fix vendor id and product id order in DeviceInfo (thanks kived).

0.3.1 (Nov 23, 2012)

Fixes:
  • device.read() will return an empty tuple if the device has nothing to offer (instead of segfaulting).
  • Exclude unnecessary package data in sdist and bdist.

0.3.0 (Nov 06, 2012)

Enhancements:
  • Add ability to set/get auto-repeat settings with EVIOC{SG}REP.
  • Add device.version - the value of EVIOCGVERSION.
  • Add device.read_loop().
  • Add device.grab() and device.ungrab() - exposes EVIOCGRAB.
  • Add device.leds - exposes EVIOCGLED.
  • Replace DeviceInfo class with a namedtuple.
Fixes:
  • device.read_one() was dropping events.
  • Rename AbsData to AbsInfo (as in struct input_absinfo).

0.2.0 (Aug 22, 2012)

Enhancements:
  • Add the ability to set arbitrary device capabilities on uinput devices (defaults to all EV_KEY ecodes).
  • Add UInput.device which is an open InputDevice to the input device that uinput 'spawns'.
  • Add UInput.capabilities() which is just a shortcut to UInput.device.capabilities().
  • Rename UInput.write() to UInput.write_event().
  • Add a simpler UInput.write(type, code, value) method.
  • Make all UInput constructor arguments optional (default device name is now py-evdev-uinput).
  • Add the ability to set absmin, absmax, absfuzz and absflat when specifying the uinput device's capabilities.
  • Remove the nophys argument - if a device fails the EVIOCGPHYS ioctl, phys will equal the empty string.
  • Make InputDevice.capabilities() perform a EVIOCGABS ioctl for devices that support EV_ABS and return that info wrapped in an AbsData namedtuple.
  • Split ioctl_devinfo into ioctl_devinfo and ioctl_capabilities.
  • Split uinput_open() to uinput_open() and uinput_create()
  • Add more uinput usage examples and documentation.
  • Rewrite uinput tests.
  • Remove mouserel and mouseabs from UInput.
  • Tie the sphinx version and release to the distutils version.
  • Set 'methods-before-attributes' sorting in the docs.
Fixes:
  • Remove KEY_CNT and KEY_MAX from ecodes.keys.

0.1.1 (May 18, 2012)

Enhancements:
  • Add events.keys, which is a combination of all BTN_ and KEY_ event codes.
Fixes:
  • ecodes.c was not generated when installing through pip.

0.1.0 (May 17, 2012)

Initial Release