The underlaying CANlib library is initialized when the module
is imported. This will initialize the CANlib library and enumerate all
currently available CAN channels.
Library Deinitialization and Cleanup¶
Strictly speaking it is not necessary to clean up anything before terminating the application. If the application quits unexpectedly, the device driver will ensure the CAN controller is deactivated and the driver will also ensure the firmware (if any) is left in a consistent state.
To reinitialize the library in an orderly fashion you may want to call
writeSync with a short timeout for each open handle
before closing them with
canlib.canlib.Channel.close, to ensure the transmit
queues are empty. You can then start afresh by calling