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MentOS/libc/inc/sys/ioctl.h
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2021-10-04 11:44:02 +02:00

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/// MentOS, The Mentoring Operating system project
/// @file ioctl.h
/// @brief Input/Output ConTroL (IOCTL) functions.
/// @copyright (c) 2014-2021 This file is distributed under the MIT License.
/// See LICENSE.md for details.
#pragma once
/// @brief Perform the I/O control operation specified by REQUEST on FD.
/// One argument may follow; its presence and type depend on REQUEST.
/// @param fd Must be an open file descriptor.
/// @param request The device-dependent request code
/// @param data An untyped pointer to memory.
/// @return Return value depends on REQUEST. Usually -1 indicates error.
int ioctl(int fd, unsigned long int request, void *data);