Practice Testing the Module - 7.6 | 7. Application Demo: Building a Ranging Sensor Kernel Module | Embedded Linux
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Testing the Module

7.6 - Testing the Module

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Learning

Practice Questions

Test your understanding with targeted questions

Question 1 Easy

What command do you use to load a kernel module?

💡 Hint: Look for the command related to inserting modules.

Question 2 Easy

What is the purpose of the dmesg command?

💡 Hint: Think about what helps with debugging in Linux.

4 more questions available

Interactive Quizzes

Quick quizzes to reinforce your learning

Question 1

What command is used to load a kernel module?

sudo rmmod sensor
sudo mknod /dev/ranging_sensor
sudo insmod sensor.ko

💡 Hint: This command is essential to begin testing.

Question 2

True or False: It is necessary to create a device file before you can read data from the kernel module.

True
False

💡 Hint: Think about how users interact with modules.

2 more questions available

Challenge Problems

Push your limits with advanced challenges

Challenge 1 Hard

If you try to read the distance from the device file before loading the module, what do you expect to happen? Explain your reasoning.

💡 Hint: Think about the relationship between the module and the device file.

Challenge 2 Hard

Explain how to handle errors encountered during module loading. What steps would you take?

💡 Hint: Consider the debugging tools available in Linux.

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