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10.1.2. Descriptor Tables
Device Descriptor:
Field
Length
Des Type
bcd USB
Device Class
Sub Class
Device Protocol
Max Packet Size
VID
PID
BCD Device Release
i-Manufacture
i-Product
i-Serial Number
#Configuration
Configuration Descriptor:
Field
Length
Des type
Total Length
No. Interface
Configuration Value
iConfiguration
Attributes
Power
Interface Descriptor:
Field
Length
Des Type
Interface No.
Alternate Setting
#EP
Interface Class
Sub Class
Interface Protocol
iInterface
Value
Description
12
01
00 02
USB 2.0
00
Unused
00
Unused
00
Unused
08
0A CD
20 10
HID ID TECH Structure
20 20
HID Other Structure
20 30
HID Keyboard
00 01
01
02
00
01
Value
Description
09
02
22 00
01
01
00
80
Bus power, no remove wakeup
32
100 mA
Value
Description
09
04
00
00
01
03
01
HID
01
00
SecureMag Encrypted MagStrip Reader User Manual
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