ATAPI Interface
Chapter 5
STT20000A Product Manual
Page 41
Inquiry command
Bit
Byte
7
6
5
4
3
2
1
0
0
Operation code (12h)
1
Reserved
2
Reserved
3
Reserved
4-7
Allocation Length
8-15
Vendor ID (8 ASCII characters) ASCII “Seagate “
16-31
Product ID (16 ASCII characters ASCII “STT20000A “
The INQUIRY command is always accepted, regardless of the state of the DSC bit.
The command does not modify the status of DSC. The INQUIRY command returns
the lesser of 36 bytes or the Allocation Length parameter of information. The
following table defines the returned values.
Note: Much of the information returned by this command is redundant with the
ATAPI Identify Device command response.
Byte
Description
Value
Meaning
0
Peripheral Device Type
01h
Streaming Tape Drive (QIC-
121 Architectural Model)
1
Removable Media Bit (RMB)
80h
Removable
2
ISO/ECMA/ANSI Version
02h
ANSI=02
3
Response Data Format
02h
This Format
4
Additional Length
32.
36 total bytes
5-7
Reserved
00h
—
8-15
Vendor ID (8 ASCII characters)
ASCII
"Seagate "
16-31
Product ID (16 ASCII characters)
ASCII
"STT20000A "
32-35
Product Revision (4 ASCII characters)
ASCII
"N.NN"
The INQUIRY command is not to be used by the low-level driver; rather, it is
intended to be used by applications, which usually have access to the drive only
through the ATAPI protocol.
Содержание STT20000A
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Страница 22: ...Chapter 2 Specifications Page 14 STT20000A Product Manual Notes...
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Страница 38: ...Chapter 4 Drive operation and maintenance Page 30 STT20000A Product Manual Notes...
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