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