cregit-Linux how code gets into the kernel

Release 4.7 include/linux/usb/storage.h

#ifndef __LINUX_USB_STORAGE_H

#define __LINUX_USB_STORAGE_H

/*
 * linux/usb/storage.h
 *
 * Copyright Matthew Wilcox for Intel Corp, 2010
 *
 * This file contains definitions taken from the
 * USB Mass Storage Class Specification Overview
 *
 * Distributed under the terms of the GNU GPL, version two.
 */

/* Storage subclass codes */


#define USB_SC_RBC	0x01		
/* Typically, flash devices */

#define USB_SC_8020	0x02		
/* CD-ROM */

#define USB_SC_QIC	0x03		
/* QIC-157 Tapes */

#define USB_SC_UFI	0x04		
/* Floppy */

#define USB_SC_8070	0x05		
/* Removable media */

#define USB_SC_SCSI	0x06		
/* Transparent */

#define USB_SC_LOCKABLE	0x07		
/* Password-protected */


#define USB_SC_ISD200	0xf0		
/* ISD200 ATA */

#define USB_SC_CYP_ATACB	0xf1	
/* Cypress ATACB */

#define USB_SC_DEVICE	0xff		
/* Use device's value */

/* Storage protocol codes */


#define USB_PR_CBI	0x00		
/* Control/Bulk/Interrupt */

#define USB_PR_CB	0x01		
/* Control/Bulk w/o interrupt */

#define USB_PR_BULK	0x50		
/* bulk only */

#define USB_PR_UAS	0x62		
/* USB Attached SCSI */


#define USB_PR_USBAT	0x80		
/* SCM-ATAPI bridge */

#define USB_PR_EUSB_SDDR09	0x81	
/* SCM-SCSI bridge for SDDR-09 */

#define USB_PR_SDDR55	0x82		
/* SDDR-55 (made up) */

#define USB_PR_DPCM_USB	0xf0		
/* Combination CB/SDDR09 */

#define USB_PR_FREECOM	0xf1		
/* Freecom */

#define USB_PR_DATAFAB	0xf2		
/* Datafab chipsets */

#define USB_PR_JUMPSHOT	0xf3		
/* Lexar Jumpshot */

#define USB_PR_ALAUDA	0xf4		
/* Alauda chipsets */

#define USB_PR_KARMA	0xf5		
/* Rio Karma */


#define USB_PR_DEVICE	0xff		
/* Use device's value */

/*
 * Bulk only data structures
 */

/* command block wrapper */

struct bulk_cb_wrap {
	
__le32	Signature;		/* contains 'USBC' */
	
__u32	Tag;			/* unique per command id */
	
__le32	DataTransferLength;	/* size of data */
	
__u8	Flags;			/* direction in bit 0 */
	
__u8	Lun;			/* LUN normally 0 */
	
__u8	Length;			/* length of the CDB */
	
__u8	CDB[16];		/* max command */
};


#define US_BULK_CB_WRAP_LEN	31

#define US_BULK_CB_SIGN		0x43425355	
/* spells out 'USBC' */

#define US_BULK_FLAG_IN		(1 << 7)

#define US_BULK_FLAG_OUT	0

/* command status wrapper */

struct bulk_cs_wrap {
	
__le32	Signature;	/* contains 'USBS' */
	
__u32	Tag;		/* same as original command */
	
__le32	Residue;	/* amount not transferred */
	
__u8	Status;		/* see below */
};


#define US_BULK_CS_WRAP_LEN	13

#define US_BULK_CS_SIGN		0x53425355      
/* spells out 'USBS' */

#define US_BULK_STAT_OK		0

#define US_BULK_STAT_FAIL	1

#define US_BULK_STAT_PHASE	2

/* bulk-only class specific requests */

#define US_BULK_RESET_REQUEST   0xff

#define US_BULK_GET_MAX_LUN     0xfe

#endif

Overall Contributors

PersonTokensPropCommitsCommitProp
matthew wilcoxmatthew wilcox13155.04%125.00%
sebastian andrzej siewiorsebastian andrzej siewior10343.28%250.00%
antonio ospiteantonio ospite41.68%125.00%
Total238100.00%4100.00%
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