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Driver Layer

The driver must contain the following functions:

  • XXX_Init INITIALIZE CAN CONTROLLER
  • XXX_Open LOCK A CAN CONTROLLER DEVICE
  • XXX_Close RELEASE A CAN CONTROLLER DEVICE
  • XXX_IoCtl CONTROL THE CAN CONTROLLER DEVICE
  • XXX_Read READ DATA FROM A CAN CONTROLLER DEVICE
  • XXX_Write WRITE DATA TO A CAN CONTROLLER DEVICE

    • Where XXX is the exact chip identification.

    Examples:

    A device driver for an external SJA1000 chip, the init function is labeled SJA1000_Init

    A device driver for the internal CAN controllers #0..#2 of the TriCore 1796, the init function is labeled TC1796_Init.

    (Note: the three CAN controllers within the chip are addressed via the device name. Details are described later in this chapter).

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