Identive CLOUD 47x0 F, Справочное руководство

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CLOUD 47
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0 F R
EFERENCE
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ANUAL
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6.3. Escape commands for the CLOUD 47x0 F
With Amendment 1 of the PC/SC specification, Part 3, a method to define vendor specific
commands has been introduced.
CLOUD 47x0 F provides the command READER_GENERIC_ESCAPE to send commands
using this method. However, most of the escape commands listed here are not defined
according to this method because of backward compatibility reasons.
All newly defined commands will adhere to this new standard. See the command
CONTACT_READ_INSERTION_COUNTER as an example.
6.3.1. Sending Escape commands to CLOUD 47x0 F
A developer can use the following methods to send Escape commands to CLOUD 47x0 F

SCardControl method defined in PC/SC API

SCardTransmit method defined in PC/SC API in conjunction with the Escape
command APDU
defined in this manual
Please note, that SCardTransmit will only work when connected to a card.
In Windows, in order to be able to send Escape commands for the CLOUD 47x0 F, the feature
has got to be enabled by setting a REG_DWORD value named ‘EscapeCommandEnable’ in
the registry to a
value of ‘1’.
For Windows XP and Windows Vista, the key to hold the value would be
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\USB\VID_04E6&PID_58
10\ Device-Instance-xxxx \Device Parameters
For Windows 7 and Windows 8, that would be
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Enum\USB\VID_04E6&PID_58
10\Device-Instance-xxxx \Device Parameters\WUDFUsbccidDriver
Device-Instance-xxxx has got to be equal to the serial number of the reader used, so this
modification has got to be made for every physical reader intended to be used on the machine
in question. The reader has got to be plugged in at least once for the mentioned key to exist
and the driver has got to be restarted for this setting to take effect. (Unplug and re-plug the
reader).
To be able to work with synchronous memory cards using our MCard API, the same setting will
have to be established.
See appendix B for some sample code sending Escape commands to the reader.