Some problems about FruDevice in the entity-manager
Henbin Chang
henbinchang at gmail.com
Fri Mar 22 16:41:30 AEDT 2019
Hi James,
There is EEPROM (AT24C64) with the valid FRU data on my board.
But the FruDevice would fail to format it.
I added some debug information to determine what's wrong with it.
Then I found the flag variable returned by isDevice16Bit() was equal 0.
That's, the FruDevice could think it's 8-bit EEPROM.
/* Check for Device type if it is 8 bit or 16 bit */
int flag = isDevice16Bit(file);
There is the below comment in the isDevice16Bit().
/* Read 7 more bytes, it will read same first byte in case of
* 8 bit but it will read next byte in case of 16 bit
*/
But the rule isn't applicable to my EEPROM (AT24C64) .
root at henbin:/var/volatile# i2ctransfer -f -y 6 w1 at 0x50 0 r1
0x00
root at henbin:/var/volatile# i2ctransfer -f -y 6 w1 at 0x50 0 r1
0x00
root at henbin:/var/volatile# i2ctransfer -f -y 6 w1 at 0x50 0 r1
0x00
root at henbin:/var/volatile# i2ctransfer -f -y 6 w1 at 0x50 0 r1
0x00
root at henbin:/var/volatile# i2ctransfer -f -y 6 w1 at 0x50 0 r1
0x00
root at henbin:/var/volatile# i2ctransfer -f -y 6 w1 at 0x50 0 r1
0x00
root at henbin:/var/volatile# i2ctransfer -f -y 6 w1 at 0x50 0 r1
0x00
root at henbin:/var/volatile# i2ctransfer -f -y 6 w1 at 0x50 0 r1
0x00
root at henbin:/var/volatile#
Could you give some suggestion?
Thanks.
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