Source code of Windows XP (NT5)
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84 lines
2.1 KiB

/*++
Copyright (c) 1993 Microsoft Corporation
Module Name:
scsi.h
Abstract:
This is a subset of the header file for SCSI definitions that is
located in the kernel tree.
Authors:
Mike Glass (mglass)
Revision History:
--*/
//
// Inquiry buffer structure. This is the data returned from the target
// after it receives an inquiry.
//
// This structure may be extended by the number of bytes specified
// in the field AdditionalLength. The defined size constant only
// includes fields through ProductRevisionLevel.
//
// The NT SCSI drivers are only interested in the first 36 bytes of data.
//
#define INQUIRYDATABUFFERSIZE 36
typedef struct _INQUIRYDATA {
UCHAR DeviceType : 5;
UCHAR DeviceTypeQualifier : 3;
UCHAR DeviceTypeModifier : 7;
UCHAR RemovableMedia : 1;
UCHAR Versions;
UCHAR ResponseDataFormat;
UCHAR AdditionalLength;
UCHAR Reserved[2];
UCHAR SoftReset : 1;
UCHAR CommandQueue : 1;
UCHAR Reserved2 : 1;
UCHAR LinkedCommands : 1;
UCHAR Synchronous : 1;
UCHAR Wide16Bit : 1;
UCHAR Wide32Bit : 1;
UCHAR RelativeAddressing : 1;
UCHAR VendorId[8];
UCHAR ProductId[16];
UCHAR ProductRevisionLevel[4];
UCHAR VendorSpecific[20];
UCHAR Reserved3[40];
} INQUIRYDATA, *PINQUIRYDATA;
//
// Inquiry defines. Used to interpret data returned from target as result
// of inquiry command.
//
// DeviceType field
//
#define DIRECT_ACCESS_DEVICE 0x00 // disks
#define SEQUENTIAL_ACCESS_DEVICE 0x01 // tapes
#define PRINTER_DEVICE 0x02 // printers
#define PROCESSOR_DEVICE 0x03 // scanners, printers, etc
#define WRITE_ONCE_READ_MULTIPLE_DEVICE 0x04 // worms
#define READ_ONLY_DIRECT_ACCESS_DEVICE 0x05 // cdroms
#define SCANNER_DEVICE 0x06 // scanners
#define OPTICAL_DEVICE 0x07 // optical disks
#define MEDIUM_CHANGER 0x08 // jukebox
#define COMMUNICATION_DEVICE 0x09 // network
#define LOGICAL_UNIT_NOT_PRESENT_DEVICE 0x7F
#define DEVICE_QUALIFIER_NOT_SUPPORTED 0x03
//
// DeviceTypeQualifier field
//
#define DEVICE_CONNECTED 0x00