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socketcan_ctypes.rst

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SocketCAN (ctypes)

socketcan_ctypes.py is a ctypes wrapper class around libc. It contains replications of constants and structures found in various linux header files. With Python 3.3, much of the functionality of this library is likely to be available natively in the Python socket module.

Bus

.. autoclass:: can.interfaces.socketcan.SocketcanCtypes_Bus

Broadcast-Manager

The socketcan_ctypes interface implements thin wrappers to the linux broadcast manager socket api. This allows the cyclic transmission of CAN messages at given intervals. The overhead for periodic message sending is extremely low as all the heavy lifting occurs within the linux kernel.

send_periodic()

An example that uses the send_periodic is included in python-can/examples/cyclic.py

The object returned can be used to halt, alter or cancel the periodic message task.

.. autoclass:: can.interfaces.socketcan.socketcan_ctypes.CyclicSendTask

Internals

createSocket

.. autofunction:: can.interfaces.socketcan.socketcan_ctypes.createSocket

bindSocket

.. autofunction:: can.interfaces.socketcan.socketcan_ctypes.bindSocket

connectSocket

.. autofunction:: can.interfaces.socketcan.socketcan_ctypes.connectSocket

capturePacket

.. autofunction:: can.interfaces.socketcan.socketcan_ctypes.capturePacket