Device Functions (Operations)

Device functions (also called device operation functions or device operations) are functions of a device context whose execution is bridged to the actual hardware device by the corresponding device driver.

Once a system module or an external application requests the execution of a device function (operation), the driver takes the function input, converts it to the device's native format, and sends it to the hardware device with a request to execute the operation. Once the operation is complete, the driver converts the device-provided reply into function output and returns this output to the calling side.

Examples of device operations:

  • "Open door" operation of an access control terminal that activates a door relay.

  • "Perform garbage collection" operation of an enterprise Java application connected to Iotellect using JMX protocol.

  • "Schedule self-test" operation of a vehicle control terminal. This operation may accept a "self-test time" parameter and return a tabular test report if the self-test time was set to "now".

Was this page helpful?