Intel 5100 EEPROM

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Intel 5100agn

Die Intel 5100agn ist eine WLAN-Karte (MiniPCI-Express), die man z.B. in einem Thinkpad verbauen kann. Diese Karte gibt es in mehreren Varianten: Einmal rebranded von Lenovo, mit anderen IDs (kostet ca. 100 €) und einmal original von Intel (27 €). Der einzige Unterschied: Die IDs.

Die Idee war daher, entweder das BIOS zu modifizieren, was sich als frickelig herausgestellt hat. Somit haben wir also das EEPROM modifiziert ;-).

Datenblätter

Nötige Änderungen

Da man das EEPROM nicht beliebig oft auf- und ablöten kann, haben wir vorsichtshalber alle IDs geändert. Daher kann ich nicht genau sagen, welche Teile das BIOS prüft. Unsere Änderungen (durch Suchen im Netz die nötigen IDs gefunden):

  • PCI ID auf 8086:4237
  • Subsystem ID auf 8086:1211
  • Device ID auf 26-08-cb-ff-ff-ea-16-00
  • MAC-Adresse auf 00:16:ea:e5:7e:92

Hexdump vom EEPROM mit Anmerkungen

0x00000000: 5a 40 00 50 70 00 04 30   00 3c 00 00 02 80

/***************************************/
/* PCI ID START                        */
/***************************************/
0x0000000e: 0x80 -- PCI vendor ID
0x0000000f: 0x86 -- PCI vendor ID

0x00000010: 0x42 -- PCI device ID
0x00000011: 0x32 -- PCI device ID --> 0x37
/***************************************/
/* PCI ID END                          */
/***************************************/

/***************************************/
/* SUBSYSTEM ID START                  */
/***************************************/
0x00000012: 0x80 -- subsystem vendor ID
0x00000013: 0x86 -- subsystem vendor ID

0x00000014: 0x12 -- subsystem device ID
0x00000015: 0x01 -- subsystem device ID --> 0x11
/***************************************/
/* SUBSYSTEM ID END                    */
/***************************************/


0x00000016: 0d 01 03 8b 05 00 00 f0   00 40 de c9 14 50 24 3e 
0x00000026: 01 31 88 4b 

/***************************************/
/* DEVICE SERIAL NUMBER (MAC-Adresse)  */
/* geändert von f8-4e-0a-ff-ff-5d-21-00
            auf 26-08-cb-ff-ff-ea-16-00
   (siehe lspci -nv)                   */
/***************************************/
0x0000002a: 0x21 --> 0x16
0x0000002b: 0x00 
0x0000002c: 0x0a --> 0xcb
0x0000002d: 0x5d --> 0xea
0x0000002e: 0xf8 --> 0x26
0x0000002f: 0x4e --> 0x08
/***************************************/
/* DEVICE SERIAL NUMBER END            */
/***************************************/


0x00000030: 69 16 79 16 89 16 99 16   ff ff 00 10 ff fe 00 00 
0x00000040: 19 54 03 0c 00 00 60 04   ec fc 1f 5d f8 00 b2 44 
0x00000050: 77 cc 01 22 69 14 24 92   00 1a 31 98 cc 60 1f 8f 
0x00000060: cf e0 07 80 c1 e0 3f b8   ff 3f cc 30 00 00 00 20
0x00000070: 0a 28 0e 81 00 00 00 00   00 00 00 00 00 00 00 00 
0x00000080: 00 00 00 00 00 00 08 4c   01 1f 00 f0 10 34 00 00 
0x00000090: 31 09 

/****************************************/
/* "MAC Adresse" (siehe Aufkleber)      */
/* geändert von 00:21:5d:0a:4e:f8 auf
                00:16:ea:e5:7e:92       */
/****************************************/
0x00000092: 0x21 -> 0x16
0x00000093: 0x00 
0x00000094: 0x0a -> 0xe5
0x00000095: 0x5d -> 0xea
0x00000096: 0xf9 -> 0x92
0x00000097: 0x4e -> 0x7e
/*****************************************/
/* MAC Adresse ENDE                      */
/*****************************************/

0x00000098: 00 02 00 00 00 00 00 50   41 30 45 34 38 46 30 33 
0x000000a8: 43 38 45 58 39 33 32 31   30 36 34 30 00 00 a1 58 
0x000000b8: 38 f8 00 00 00 00 00 00   00 00 00 00 00 00 00 00 
0x000000c8: 00 6e 00 96 00 ab 01 0f   03 68 02 cb 00 00 00 00 
0x000000d8: 00 00 00 00 00 20 00 00   00 00 00 00 00 00 00 00 
0x000000e8: 00 00 00 00 00 00 00 00   00 00 00 00 00 00 00 00 
0x000000f8: 00 00 00 00 00 00 00 00   00 00 00 00 00 00 00 00
0x00000108: 00 00 00 00 00 00 00 00   00 00 00 00 00 00 00 00 
0x00000118: 00 00 00 00 00 00 00 00   00 00 00 00 00 00 00 00 
0x00000128: 00 00 00 00 00 00 00 00   00 00 00 00 00 00 00 00 
0x00000138: 00 00 00 00 00 00 00 00   00 00 00 00 00 00 00 00 
0x00000148: 00 00 00 00 00 00 00 00   00 00 00 00 00 00 00 0e 
0x00000158: 6f 4d 00 57 00 00 0f 6f   0f 6f 0f 6f 0f 6f 0f 6f 
0x00000168: 0f 6f 0f 6f 0f 6f 0f 6f   0f 6f 0f 6f 0f 61 0f 61 
0x00000178: 00 00 00 00 00 00 00 00   00 00 00 00 00 00 00 00 
0x00000188: 00 00 00 00 00 00 00 00   00 00 00 00 00 00 00 00 
0x00000198: 00 00 0e e1 00 00 0f e1   00 00 0f e1 00 00 0f e1 
0x000001a8: 0f 31 0f 31 0f 31 0f 31   00 00 0f 31 0f 31 0f 31 
0x000001b8: 0f 31 0f 31 0f 31 0f 31   0f 31 0f 31 0f 31 0f 31 
0x000001c8: 00 00 00 00 0f a1 0f a1   0f a1 0f a1 0f a1 00 00 
0x000001d8: 0a 6f 0f 6f 0f 6f 0f 6f   0f 6f 0f 6f 0d 6f 00 00 
0x000001e8: 0a e1 0f e1 0f 31 0a 31   0f 31 0f 31 0f 31 0f 31 
0x000001f8: 0f 31 0f 61 0f 61 0c 0c   0f 0f 0f 0f 0f 0f 0f 0f 
0x00000208: 0f 0f 0f 0f 0f 0f 0f 0f   0f 0f 0c 0c 0f 0f 0f 0f 
0x00000218: 00 00 00 00 00 00 00 04   00 00 00 00 00 00 00 00 
0x00000228: 00 00 00 00 00 00 00 00   00 00 00 00 00 00 00 00 
*
0x000002d8: 00 00 00 00 00 00 00 00   00 00 00 00 00 00 22 45
0x000002e8: 28 c1 29 41 28 b4 32 3c   28 9c 3d 37 28 7d 45 33 
0x000002f8: 28 5c 00 00 00 00 06 28   f2 00 21 3c 28 ae 27 39 
0x00000308: 28 9e 34 32 28 70 3b 2e   28 51 46 29 28 2a 00 00 
0x00000318: 00 00 24 28 ee 00 21 3f   28 90 28 3b 28 73 32 36 
0x00000328: 28 49 3c 31 28 23 45 2c   2a 0f 00 00 00 00 40 28 
0x00000338: ee 00 22 3d 28 8b 28 3a   28 73 33 34 28 3f 3c 2f 
0x00000348: 28 22 44 2b 28 10 00 00   00 00 64 28 ee 00 22 3d 
0x00000358: 28 9b 28 3a 28 86 33 34   28 53 3d 2f 28 2e 45 2b 
0x00000368: 2a 19 00 00 00 00 74 28   ee 00 22 39 2a 9d 28 36 
0x00000378: 28 89 33 30 2a 58 3d 2b   28 31 45 27 2a 1b 00 00 
0x00000388: 00 00 8c 28 ee 00 20 37   28 a9 27 34 2a 96 33 2d 
0x00000398: 28 64 3b 29 2a 41 47 24   2a 1f 00 00 00 00 9d 28 
0x000003a8: ee 00 00 00 00 00 00 00   00 00 00 00 00 00 00 00 
0x000003b8: 00 00 00 00 00 00 00 00   00 00 00 00 00 00 00 00 
*
0x00000468: 00 00 00 00 00 00 00 5d   00 5d 00 00 00 00 00 00 
0x00000478: 01 01 00 06 01 01 00 05   00 00 00 00 01 01 00 06 
0x00000488: 01 01 00 05 00 00 00 00   00 00 00 00 00 00 00 00 
0x00000498: 00 00 00 00 00 00 00 00   00 00 00 00 00 00 00 00 
0x000004a8: 01 02 00 08 01 02 00 08   00 00 00 00 01 02 00 09 
0x000004b8: 01 02 00 08 00 00 00 00   00 00 00 00 00 00 00 00 
0x000004c8: 00 00 00 00 00 00 00 00   00 00 00 00 00 00 00 00 
0x000004d8: 01 02 00 07 01 03 00 06   00 00 00 00 01 02 00 08 
0x000004e8: 01 03 00 07 00 00 00 00   00 00 00 00 00 00 00 00 
0x000004f8: 00 00 00 00 00 00 00 00   00 00 00 00 00 00 00 00 
0x00000508: 01 02 00 06 01 03 00 04   00 00 00 00 01 02 00 06 
0x00000518: 01 03 00 05 00 00 00 00   00 00 00 00 00 00 00 00 
0x00000528: 00 00 00 00 00 00 00 00   00 00 00 00 00 00 00 00 
0x00000538: 01 02 00 05 01 02 00 03   00 00 00 00 01 02 00 05 
0x00000548: 01 02 00 04 00 00 00 00   00 00 00 00 00 00 00 00 
0x00000558: 00 00 00 00 00 00 00 00   00 00 00 00 00 00 00 00 
0x00000568: 01 01 00 04 01 02 00 02   00 00 00 00 01 01 00 04 
0x00000578: 01 02 00 02 00 00 00 00   00 00 00 00 00 00 00 00 
0x00000588: 00 00 00 00 00 00 00 00   00 00 00 00 00 00 00 00 
0x00000598: 01 01 00 06 01 05 00 03   00 00 00 00 01 01 00 06 
0x000005a8: 01 06 00 03 00 00 00 00   00 00 00 00 00 00 00 00
0x000005b8: 00 00 00 00 00 00 00 00   00 00 00 00 00 00 00 00 
*
0x000007ff: 00

To be continued…

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