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Chongqing Jinou Science &Technology Development Co., Ltd.
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12.9 MINOR DEVICE CLASS FIELD - PERIPHERAL
MAJOR CLASS
7 6
Minor Device Class
bit no of CoD
0
1
Keyboard
1
0
Pointing device
1
1
Combo keyboard/pointing device
X
X
All other values reserved
TABLE 1.9: THE PERIPHERAL MAJOR CLASS KEYBOARD/POINTING DEVICE FIELD
Bits 6 and 7 independently specify mouse, keyboard or combo mouse/keyboard devices. These
may be combined with the lower bits in a multifunctional device.
5
4
3
2
Minor Device Class
bit no of CoD
0
0
0
0
Uncategorized device
0
0
0
1
Joystick
0
0
1
0
Gamepad
0
0
1
1
Remote control
0
1
0
0
Sensing device
0
1
0
1
Digitizer tablet
X
X
X
X
All other values reserved
TABLE 1.10: RESERVED SUB-FIELD FOR THE DEVICE TYPE
12.10 MINOR DEVICE CLASS FIELD - IMAGING MAJOR
CLASS
7
6
5
4
Minor Device Class
bit no of CoD
X
X
X
1
Display
X
X
1
X
Camera
X
1
X
X
Scanner
1
X
X
X
Printer
X
X
X
X
All other values reserved
TABLE 1.11: THE IMAGING MAJOR CLASS BITS 4 TO 7
Bits 4 to 7 independently specify display, camera, scanner or printer. These may be combined in a
multifunctional device.
3
2
Minor Device Class
bit no of CoD
0
0
Uncategorized, default
X
X
All other values reserved
TABLE 1.12: THE IMAGING MAJOR CLASS BITS 2 AND 3
Bits 2 and 3 are reserved
Example:
PC: 0x120104
NOTEBOOK: 0x12010C
Headphones: 0x200404