Section 4. USB Communications
CARD ENCODE TYPE
This
Value | Encode Type | Description |
0 | ISO/ABA | ISO/ABA encode format |
1 | AAMVA | AAMVA encode format |
2 | CADL | CADL encode format. Note that this reader can only read track |
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| 2 for this format. It cannot read tracks 1 and 3. However, this |
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| format is obsolete. |
3 | Blank | The card is blank. |
4 | Other | The card has a |
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| ISO/ABA track 1 format on track 2. |
5 | Undetermined | The card encode type could not be determined because no |
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| tracks could be decoded. |
6 | None | No decode has occurred. This type occurs if no magnetic stripe |
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| data has been acquired since the data has been cleared or |
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| since the device was powered on. This device only sends an |
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| Input report when a card has been swiped so this value will |
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| never occur. |
7 | JIS Type 2 | JIS Type 2 encode format. Before this encode type can be |
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| decoded, decoding must be enabled with the decode enable |
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| property. The JIS type 2 decoding option was not added until |
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| firmware with software ID 21042812K01 was release in October |
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| 2008. |
TRACK DATA
If decodable track data exists for a given track, it is located in the track data field that corresponds to the track number. The length of each track data field is fixed at 110 bytes, but the length of valid data in each field is determined by the track data length field that corresponds to the track number. Track data located in positions greater than the track data length field indicates are undefined and should be ignored. The HID specification requires that reports be fixed in size, but the number of bytes encoded on a card may vary. Therefore, the Input Report always contains the maximum amount of bytes that can be encoded on the card and the number of valid bytes in each track is indicated by the track data length field. The track data is decoded and converted to ASCII. The track data includes all data starting with the start sentinel and ending with the end sentinel.
TRACK 1 DATA
This field contains the decoded track data for track 1.
TRACK 2 DATA
This field contains the decoded track data for track 2.
TRACK 3 DATA
This field contains the decoded track data for track 3.
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