`struct mifare_classic_block_manufacturer` member `btUnknown` should be `btSAK`

[GoogleCodeExporter]

I tested changing this field on "Chinese magic cards" (S50)
It shows that this field is exactly the same as SAK returned by PICC

Original issue reported on code.google.com by zhangyo...@gmail.com on 4 Jun 2013 at 6:49

[GoogleCodeExporter]

We will to that change but beware is not exactly equal to SAK systematically:
* NXP MFC 1k: SAK=08 btSAK=88
* NXP MFC 4k: SAK=18 btSAK=98
* NXP MFC mini: SAK=09 btSAK=89
* NXP MFC 7bytes: SAK=08 btSAK=6th byte of UID
* NXP MF+ SL1: SAK=18 btSAK=28
* Infineon MFC: SAK=88 btSAK=88
* JCOP/SMartMX: SAK=38 btSAK=38
So
* 6 LSBits are = SAK
* 8th bit (MSB) is for sure not part of SAK
* 7th bit: no idea 

BTW abtUnknown can be labeled abtManuf as it contains the so called 
manufacturer data.

Original comment by yob...@gmail.com on 12 Jun 2013 at 5:52

• Changed state: Accepted
• Added labels: Type-Enhancement
• Removed labels: Type-Defect

[GoogleCodeExporter]

This issue was closed by revision 7638e9ea87bf.

Original comment by yob...@gmail.com on 13 Jun 2013 at 6:17

• Changed state: Fixed