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3 cards from this section. Quick, good the night before a test.
What does IOCTL stand for?
Think about the purpose of this call in managing device interactions.
Why would you use IOCTL instead of a regular read or write?
Recall the types of operations IOCTL can handle.
What is the primary purpose of IOCTL?
Consider what types of operations are needed beyond just reading and writing.
True or False: IOCTL can be used with any device type, provided the driver supports it.
Think about the flexibility of IOCTL across different hardware.
Write a C code snippet that configures a device using IOCTL, ensuring to handle potential errors in every step.
Think about what functions you need to incorporate.
Discuss how you would go about debugging failed IOCTL commands. What strategies would you employ to trace the source of the error?
Consider what tools or methods are effective in debugging.
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