ioctl(2) — Linux manual page - man7.org
网页ioctl (2) is a system call that manipulates the underlying parameters of special files, such as terminals. It takes an open file descriptor, a device-dependent operation code, and an argument pointer as arguments. See the syntax, description, errors, and versions of ioctl (2) in this manual page.
GitHub - Z4kSec/IoctlHunter: IoctlHunter is a command-line tool ...
网页IoctlHunter is a command-line tool designed to simplify the analysis of IOCTL calls made by userland software targeting Windows drivers. TL;DR: Here are the videos demonstrating the usage of IoctlHunter.
【通俗易懂】详解 ioctl 函数是如何操控底层的 - CSDN博客
网页2023年6月1日 — 设计出 ioctl 函数的主要原因是：内核设计者希望将用户空间和内核空间的驱动模块的交互分成两部分： 数据读写以及状态控制。 引入 ioctl 函数之后， 数据读写和状态控制将被区分开进行管理，互不干扰。 另外，ioctl函数在使用时，要求用户按照内核特定的方式进行命令码的封装。 此后，应用层工程师和内核驱动工程师都可以 按照同一套封装标准进行命令码的封装和解析，实现了应用层和内核空间更好的对接。 2. ioctl函数的形象理解. …
ioctl based interfaces — The Linux Kernel documentation
网页Learn how to use ioctl () to interface with device drivers in Linux. Find out how to handle timestamps, timeouts, 32-bit compat mode, and structure layout with get_timespec64 () and put_timespec64 () functions.
linux 内核 - ioctl 函数详解 - 知乎 - 知乎专栏
网页ioctl 是设备驱动程序中设备控制接口函数，一个字符设备驱动通常会实现设备打开、关闭、读、写等功能，在一些需要细分的情境下，如果需要扩展新的功能，通常以增设 ioctl () 命令的方式实现。 在文件 I/O 中，ioctl 扮演着重要角色，本文将以驱动开发为侧重点，从用户空间到内核空间纵向分析 ioctl 函数。 图片来源于网络. 2. 用户空间 ioctl. #include <sys/ioctl.h> int ioctl(int fd, int cmd, ...) ioctl () 函数执行成功时返回 0，失败则返回 -1 并设置全局变量 …
linux ioctl()详解 - CSDN博客
网页本文介绍了linux中ioctl函数的作用、参数、命令和返回值，以及如何在驱动和应用程序中使用ioctl进行设备操作。ioctl返回值可能是正数或负数，表示成功或失败，具体要看ioctl函数的实现和命令的定义。
Two different function prototypes for Linux kernel module ioctl
网页2021年11月26日 — Yes, but random_ioctl() doesn't have two versions, it is only static long random_ioctl(struct file *f, unsigned int cmd, unsigned long arg).Like I said in my answer, my guess is that some types of drivers work on struct file while other types of driver work on struct inode.Grepping the source tree, I see ioctl functions with struct inode mainly in filesystem drivers.
ZOCL Driver Interfaces — XRT Master documentation - GitHub …
网页ZOCL is a GEM style driver for Xilinx edge based accelerators (Zynq/ZynqMP/Versal). It supports buffer objects, memory management, execution commands, and soft kernel commands.
ioctl - Wikipedia
网页ioctl is a system call that allows userspace applications to communicate with device drivers and access kernel functions. It takes a request code and a data pointer as parameters, and is supported by most Unix and Unix-like systems, including Linux and macOS.
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