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45 lines
1.7 KiB
45 lines
1.7 KiB
/* SPDX-License-Identifier: GPL-2.0+ WITH Linux-syscall-note */ |
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/* |
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* Linux/PA-RISC Project (http://www.parisc-linux.org/) |
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* Copyright (C) 1999,2003 Matthew Wilcox < willy at debian . org > |
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* portions from "linux/ioctl.h for Linux" by H.H. Bergman. |
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* |
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* This program is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU General Public License as published by |
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* the Free Software Foundation; either version 2 of the License, or |
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* (at your option) any later version. |
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* |
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* This program is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU General Public License for more details. |
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* |
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* You should have received a copy of the GNU General Public License |
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* along with this program; if not, write to the Free Software |
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
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*/ |
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#ifndef _ASM_PARISC_IOCTL_H |
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#define _ASM_PARISC_IOCTL_H |
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/* ioctl command encoding: 32 bits total, command in lower 16 bits, |
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* size of the parameter structure in the lower 14 bits of the |
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* upper 16 bits. |
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* Encoding the size of the parameter structure in the ioctl request |
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* is useful for catching programs compiled with old versions |
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* and to avoid overwriting user space outside the user buffer area. |
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* The highest 2 bits are reserved for indicating the ``access mode''. |
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* NOTE: This limits the max parameter size to 16kB -1 ! |
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*/ |
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/* |
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* Direction bits. |
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*/ |
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#define _IOC_NONE 0U |
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#define _IOC_WRITE 2U |
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#define _IOC_READ 1U |
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#include <asm-generic/ioctl.h> |
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#endif /* _ASM_PARISC_IOCTL_H */
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