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Saturday, April 12, 2014

CCID descriptor statistics: dwSynchProtocols

Article from the serie "CCID descriptor statistics"

The dwSynchProtocols field is a number value from the CCID USB descriptor:
• RRRR-UpperWord- is RFU=0000h
• PPPP-Lower Word- encodes thes upported protocol types. A ‘1’ in a given bit position indicates support for the associated protocol.
0001h indicates support for the 2-wire protocol
0002h indicates support for the 3-wire protocol
0004h indicates support for the I2C protocol
All other values are outside of this specification, and must be handled by vendor-supplied drivers.

A footnote in the specification also indicates:
This release of the specification does not support devices with the 2-wire, 3-wire, and I2C protocol so PPPP = 0000h. This field is intended to be forward compatible with the PCSC specification.
I imagine this value is for synchronous cards only.

0x0000000021885.83 %
0x000000073513.78 %
0x0000000110.39 %

The normal value should be PPPP = 0000h. Most of the readers provide this value.

The reader with value 0x00000001 is:

The readers with value 0x00000007 are:
  • Akasa AK-CR-03
  • Alcor Micro AU9520
  • Alcor Micro AU9522
  • Alcor Micro AU9540
  • Alcor Micro SCR001
  • C3PO KBR36
  • C3PO LTC31 v2
  • C3PO LTC32
  • C3PO LTC36
  • Cherry GmbH SmartBoard XX44
  • Cherry GmbH SmartTerminal ST-1275
  • Cherry GmbH SmartTerminal XX44
  • Feitian bR301
  • Fujitsu Siemens Computers SmartCard Keyboard USB 2A
  • Fujitsu Siemens Computers SmartCard USB 2A
  • GIS Ltd SmartMouse USB
  • Giesecke & Devrient GmbH StarSign Crypto USB Token
  • KOBIL KAAN Advanced
  • OMNIKEY 6321 CLi USB
  • OMNIKEY AG CardMan 3021
  • OMNIKEY AG CardMan 3121
  • OMNIKEY AG CardMan 3621
  • OMNIKEY AG CardMan 3821
  • OMNIKEY AG CardMan 5121
  • OMNIKEY AG CardMan 5125
  • OMNIKEY AG CardMan 6121
  • OMNIKEY AG Smart Card Reader
  • OMNIKEY CardMan 1021
  • OMNIKEY CardMan 4321
  • OMNIKEY CardMan 5321
  • Precise Biometrics Sense MC
  • Sitecom Sitecom USB simcard reader MD-010
  • THRC Smart Card Reader
  • VASCO DP905v1.1
  • Watchdata W5181
  • XIRING Teo