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| 2 | |
| 3 | * Linux/PA-RISC Project (http://www.parisc-linux.org/)
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| 4 | * Copyright (C) 1999,2003 Matthew Wilcox < willy at debian . org >
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| 5 | * portions from "linux/ioctl.h for Linux" by H.H. Bergman.
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| 6 | *
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| 7 | * This program is free software; you can redistribute it and/or modify
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| 8 | * it under the terms of the GNU General Public License as published by
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| 9 | * the Free Software Foundation; either version 2 of the License, or
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| 10 | * (at your option) any later version.
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| 11 | *
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| 12 | * This program is distributed in the hope that it will be useful,
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| 13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of
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| 14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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| 15 | * GNU General Public License for more details.
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| 16 | *
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| 17 | * You should have received a copy of the GNU General Public License
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| 18 | * along with this program; if not, write to the Free Software
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| 19 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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| 20 |
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| 21 |
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| 22 |
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| 23 | #ifndef _ASM_PARISC_IOCTL_H
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| 24 | #define _ASM_PARISC_IOCTL_H
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| 25 |
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| 26 | |
| 27 | * size of the parameter structure in the lower 14 bits of the
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| 28 | * upper 16 bits.
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| 29 | * Encoding the size of the parameter structure in the ioctl request
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| 30 | * is useful for catching programs compiled with old versions
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| 31 | * and to avoid overwriting user space outside the user buffer area.
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| 32 | * The highest 2 bits are reserved for indicating the ``access mode''.
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| 33 | * NOTE: This limits the max parameter size to 16kB -1 !
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| 34 |
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| 35 |
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| 36 | |
| 37 | * Direction bits.
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| 38 |
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| 39 | #define _IOC_NONE 0U
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| 40 | #define _IOC_WRITE 2U
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| 41 | #define _IOC_READ 1U
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| 42 |
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| 43 | #include <asm-generic/ioctl.h>
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| 44 |
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| 45 | #endif
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