diff options
Diffstat (limited to 'kernel/include/uapi/linux/uio.h')
| -rw-r--r-- | kernel/include/uapi/linux/uio.h | 30 |
1 files changed, 30 insertions, 0 deletions
diff --git a/kernel/include/uapi/linux/uio.h b/kernel/include/uapi/linux/uio.h new file mode 100644 index 000000000..2731d56a5 --- /dev/null +++ b/kernel/include/uapi/linux/uio.h @@ -0,0 +1,30 @@ +/* + * 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 */ |