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Description:

The website provides a detailed manual page for the ioctl(2) system call in Linux, offering information on its purpose, usage, and parameters. It explains how ioctl() is used to manipulate device parameters of special files, such as terminals, and outlines the arguments required for the call. The page covers the return values, possible errors, and historical context of the ioctl() function, including variations in different UNIX versions. Additionally, it delves into the structure of ioctl op values and how they are encoded to specify different operations and drivers.

Added on: October 4, 2025


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Comments (13)

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Thomas174 Oct 26, 2025

How does the structure of ioctl op values impact the functionality and capabilities of the ioctl() system call in Linux?

Markl Oct 17, 2025

How does the historical context of the ioctl() function in Linux impact its usage and implementation today?

Victoria313 Oct 16, 2025

How does the ioctl(2) system call in Linux interact with different types of special files, such as terminals?

Michaelo Oct 10, 2025

Can you provide examples of common use cases for the ioctl(2) system call in Linux?

Williamd Oct 10, 2025

Can you provide examples of common use cases for the ioctl() system call in Linux?

Williamz Oct 9, 2025

Can you provide examples of common use cases for the ioctl(2) system call in Linux?

James Gonzalez Oct 8, 2025

Can you provide examples of common use cases for the ioctl() system call in Linux?