Commands; About Commands - Magtek eDynamo Programmer's Manual

8 - Commands

8 Commands
This section describes the commands available on the device. In some MSR-only solutions, the host
software only needs to obtain card data from the device (see section 6 Magnetic Stripe Card Data Sent
from Device to Host) and does not need to send commands.
Each command's section heading indicates the Connection Types, Data Formats, and device features
(see section 1.5 About Device Features) that are relevant to it.
8.1

About Commands

Regardless of connection type and data format, all MagneSafe V5 devices use common structures to
receive command request messages from the host and to send command response messages back. For
information about connection-specific wrappers for these commands, see section 2 Connection Types.
Table 8-1 - Command Request Message (Host Sends to Device to Initiate a Command)
0
1
2..n
Maximum / fixed length depends on device and connection type.
Command Number is a one byte value that contains the requested command number. Section 8
Commands lists all available commands.
Command Request Data Length is a one byte value that contains the length of the Command Request
Data field.
Command Request Data contains command data as defined in the documentation for the selected
command in section 8 Commands.
Table 8-2 - Command Response Message (Host Sends to Device to Retrieve Data or Responses)
0
1
2..n
Result Code is a one-byte value the device sends to indicate success or the failure mode of the command.
Section 8.2 About Result Codes provides more detail.
Command Response Data Length is a one byte value that contains the length of the Command
Response Data field.
Command Response Data contains response data as defined in the documentation for the selected
command in section 8 Commands.
eDynamo| Secure Card Reader Authenticator | Programmer's Manual (COMMANDS)
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Field Name
Command Number
Command Request Data Length
Command Request Data
Field Name
Result Code
Command Response Data Length
Command Response Data