[deliverable/linux.git] / include / uapi / linux / uio.h

/*
 *	Berkeley style UIO structures	-	Alan Cox 1994.
 *
 *		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.
 */
#ifndef _UAPI__LINUX_UIO_H
#define _UAPI__LINUX_UIO_H

#include <linux/compiler.h>
#include <linux/types.h>


struct iovec
{
	void __user *iov_base;	/* BSD uses caddr_t (1003.1g requires void *) */
	__kernel_size_t iov_len; /* Must be size_t (1003.1g) */
};

/*
 *	UIO_MAXIOV shall be at least 16 1003.1g (5.4.1.1)
 */
 
#define UIO_FASTIOV	8
#define UIO_MAXIOV	1024


#endif /* _UAPI__LINUX_UIO_H */
Commit	Line	Data
607ca46e DH	1	/*
	2	* Berkeley style UIO structures - Alan Cox 1994.
	3	*
	4	* This program is free software; you can redistribute it and/or
	5	* modify it under the terms of the GNU General Public License
	6	* as published by the Free Software Foundation; either version
	7	* 2 of the License, or (at your option) any later version.
	8	*/
	9	#ifndef _UAPI__LINUX_UIO_H
	10	#define _UAPI__LINUX_UIO_H
	11
	12	#include <linux/compiler.h>
	13	#include <linux/types.h>
	14
	15
	16	struct iovec
	17	{
	18	void __user iov_base; / BSD uses caddr_t (1003.1g requires void ) /
	19	__kernel_size_t iov_len; /* Must be size_t (1003.1g) */
	20	};
	21
	22	/*
	23	* UIO_MAXIOV shall be at least 16 1003.1g (5.4.1.1)
	24	*/
	25
	26	#define UIO_FASTIOV 8
	27	#define UIO_MAXIOV 1024
	28
	29
	30	#endif /* _UAPI__LINUX_UIO_H */