ublock.h revision 1a48b588c6de8ae43903768adf53b32545f69986 
1/****************************************************************************
2 ****************************************************************************
3 ***
4 ***   This header was automatically generated from a Linux kernel header
5 ***   of the same name, to make information necessary for userspace to
6 ***   call into the kernel available to libc.  It contains only constants,
7 ***   structures, and macros generated from the original header, and thus,
8 ***   contains no copyrightable information.
9 ***
10 ****************************************************************************
11 ****************************************************************************/
12#ifndef __UBLOCK_H_
13#define __UBLOCK_H_
14
15#include <linux/types.h>
16
17#define UBLOCK_VERSION 0
18
19enum {
20 UBLOCK_INIT_IN = 0,
21 UBLOCK_INIT_OUT = 1,
22 UBLOCK_READY_IN = 2,
23 UBLOCK_READY_OUT = 3,
24 UBLOCK_READ_IN = 4,
25 UBLOCK_READ_OUT = 5,
26 UBLOCK_WRITE_IN = 6,
27 UBLOCK_WRITE_OUT = 7,
28};
29
30struct ublock_in_header {
31 __u32 seq;
32 __u32 opcode;
33};
34
35struct ublock_out_header {
36 __u32 seq;
37 __u32 opcode;
38};
39
40struct ublock_init_in {
41 __u32 version;
42 __u32 max_buf;
43 __u32 index;
44};
45
46struct ublock_init_out {
47 __u32 version;
48 __u32 max_buf;
49 __u64 size;
50};
51
52struct ublock_ready_in {
53 __u32 _unused;
54};
55
56struct ublock_ready_out {
57 __u32 _unused;
58};
59
60struct ublock_read_in {
61 __u64 offset;
62 __u64 length;
63};
64
65struct ublock_read_out {
66 __s32 status;
67 __u8 data[];
68};
69
70struct ublock_write_in {
71 __u64 offset;
72 __u64 length;
73 __u8 data[];
74};
75
76struct ublock_write_out {
77 __s32 status;
78};
79
80#endif
81
82