Linux kernel mirror (for testing)
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1#ifndef __USB_UAS_H__
2#define __USB_UAS_H__
3
4#include <scsi/scsi.h>
5#include <scsi/scsi_cmnd.h>
6
7/* Common header for all IUs */
8struct iu {
9 __u8 iu_id;
10 __u8 rsvd1;
11 __be16 tag;
12};
13
14enum {
15 IU_ID_COMMAND = 0x01,
16 IU_ID_STATUS = 0x03,
17 IU_ID_RESPONSE = 0x04,
18 IU_ID_TASK_MGMT = 0x05,
19 IU_ID_READ_READY = 0x06,
20 IU_ID_WRITE_READY = 0x07,
21};
22
23struct command_iu {
24 __u8 iu_id;
25 __u8 rsvd1;
26 __be16 tag;
27 __u8 prio_attr;
28 __u8 rsvd5;
29 __u8 len;
30 __u8 rsvd7;
31 struct scsi_lun lun;
32 __u8 cdb[16]; /* XXX: Overflow-checking tools may misunderstand */
33};
34
35/*
36 * Also used for the Read Ready and Write Ready IUs since they have the
37 * same first four bytes
38 */
39struct sense_iu {
40 __u8 iu_id;
41 __u8 rsvd1;
42 __be16 tag;
43 __be16 status_qual;
44 __u8 status;
45 __u8 rsvd7[7];
46 __be16 len;
47 __u8 sense[SCSI_SENSE_BUFFERSIZE];
48};
49
50struct usb_pipe_usage_descriptor {
51 __u8 bLength;
52 __u8 bDescriptorType;
53
54 __u8 bPipeID;
55 __u8 Reserved;
56} __attribute__((__packed__));
57
58enum {
59 CMD_PIPE_ID = 1,
60 STATUS_PIPE_ID = 2,
61 DATA_IN_PIPE_ID = 3,
62 DATA_OUT_PIPE_ID = 4,
63
64 UAS_SIMPLE_TAG = 0,
65 UAS_HEAD_TAG = 1,
66 UAS_ORDERED_TAG = 2,
67 UAS_ACA = 4,
68};
69#endif