|  | /* | 
|  | *	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 */ |