15 lines
623 B
C
15 lines
623 B
C
/// @file ioctl.h
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/// @brief Input/Output ConTroL (IOCTL) functions.
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/// @copyright (c) 2014-2024 This file is distributed under the MIT License.
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/// See LICENSE.md for details.
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#pragma once
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/// @brief Perform the I/O control operation specified by REQUEST on FD.
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/// One argument may follow; its presence and type depend on REQUEST.
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/// @param fd Must be an open file descriptor.
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/// @param request The device-dependent request code
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/// @param data An untyped pointer to memory.
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/// @return Return value depends on REQUEST. Usually -1 indicates error.
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int ioctl(int fd, unsigned long int request, void *data);
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