mirror of
https://mirrors.bfsu.edu.cn/git/linux.git
synced 2024-11-16 00:34:20 +08:00
f54d8a1b3f
Now that <asm-generic/ioctl.h> allows overriding of the most commonly changed macro values, take advantage of that. Signed-off-by: Robert P. J. Day <rpjday@crashcourse.ca> Signed-off-by: Kyle McMartin <kyle@mcmartin.ca>
45 lines
1.6 KiB
C
45 lines
1.6 KiB
C
/*
|
|
* 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 */
|