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2 cards from this section. Quick, good the night before a test.
What does a kernel module do?
Think about how devices communicate with the OS.
What pin is used to send a pulse in the ultrasonic sensor example?
Relate it to initiating an action.
What does the trigger pin do in an ultrasonic sensor?
Recall the first step of using the sensor.
True or False: The echo pin is used to measure the time taken for the echo to return.
Think about what happens after the sound is emitted.
Design a kernel module that can handle multiple sensor types (e.g., ultrasonic, infrared). Discuss how you would implement the interface.
Think about how to handle varying input processing in your module.
Analyze the impact of incorrect GPIO pin initialization on sensor readings and describe potential fail-safes.
Consider what safety checks are vital in electronics.
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